{"id":787,"date":"2026-04-06T08:32:01","date_gmt":"2026-04-06T08:32:01","guid":{"rendered":"https:\/\/hxcnc.com\/?page_id=787"},"modified":"2026-05-14T05:50:18","modified_gmt":"2026-05-14T05:50:18","slug":"ptfe-coating-services","status":"publish","type":"page","link":"https:\/\/hxcnc.com\/zh\/ptfe-coating-services\/","title":{"rendered":"PTFE \u5857\u5c64\u670d\u52d9"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"787\" class=\"elementor elementor-787\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0321692 e-con-full e-flex e-con e-parent\" data-id=\"0321692\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b2e260 elementor-widget elementor-widget-html\" data-id=\"7b2e260\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Roboto:wght@300;400;500;600;700;900&family=Roboto+Condensed:wght@400;700&display=swap\" rel=\"stylesheet\">\n<style>\n.hx-wrap {\n  --bg-main: #F7F9FC;\n  --bg-block: #FFFFFF;\n  --bg-secondary: #EEF3F8;\n  --text-primary: #1F2937;\n  --text-secondary: #5B6777;\n  --border: #D7E0EA;\n  --primary: #2563EB;\n  --primary-hover: #1D4ED8;\n  --accent: #0F766E;\n  font-family: 'Roboto', sans-serif;\n  color: var(--text-primary);\n  background: var(--bg-main)\n}\n\n.hx-wrap *, .hx-wrap *::before, .hx-wrap *::after {\n  box-sizing: border-box;\n  margin: 0;\n  padding: 0\n}\n\n.hx-hero-wrap {\n  background: var(--bg-block);\n  border-bottom: 1px solid var(--border)\n}\n\n.hx-hero {\n  padding: 72px 48px;\n  display: grid;\n  grid-template-columns: 1fr 1fr;\n  gap: 56px;\n  align-items: center;\n  max-width: 1200px;\n  margin: 0 auto\n}\n\n.hx-badge {\n  display: inline-flex;\n  align-items: center;\n  gap: 8px;\n  background: var(--bg-secondary);\n  border: 1px solid var(--border);\n  border-radius: 100px;\n  padding: 6px 16px;\n  font-size: 12px;\n  font-weight: 600;\n  color: var(--accent);\n  text-transform: uppercase;\n  letter-spacing: .8px;\n  margin-bottom: 24px\n}\n\n.hx-badge::before {\n  content: '';\n  width: 8px;\n  height: 8px;\n  background: var(--accent);\n  border-radius: 50%;\n  flex-shrink: 0\n}\n\n.hx-hero h1 {\n  font-size: 46px;\n  font-weight: 900;\n  line-height: 1.08;\n  letter-spacing: -1.5px;\n  margin-bottom: 20px\n}\n\n.hx-hero h1 em {\n  font-style: normal;\n  color: var(--primary)\n}\n\n.hx-hero-desc {\n  font-size: 16px;\n  color: var(--text-secondary);\n  line-height: 1.7;\n  margin-bottom: 36px;\n  max-width: 460px\n}\n\n.hx-actions {\n  display: flex;\n  gap: 16px;\n  align-items: center;\n  flex-wrap: wrap\n}\n\n.hx-btn-primary {\n  background: var(--primary);\n  color: #fff;\n  padding: 13px 28px;\n  border-radius: 8px;\n  font-size: 15px;\n  font-weight: 600;\n  text-decoration: none;\n  display: inline-block;\n  transition: background .2s\n}\n\n.hx-btn-primary:hover {\n  background: var(--primary-hover)\n}\n\n.hx-btn-link {\n  color: var(--primary);\n  font-size: 15px;\n  font-weight: 600;\n  text-decoration: none\n}\n\n.hx-hero-img-wrap {\n  position: relative;\n  height: 400px;\n  border-radius: 16px;\n  overflow: hidden;\n  box-shadow: 0 24px 64px rgba(0, 0, 0, .18)\n}\n\n.hx-hero-img-wrap img {\n  width: 100%;\n  height: 100%;\n  object-fit: cover;\n  display: block\n}\n\n.hx-hero-img-overlay {\n  position: absolute;\n  inset: 0;\n  background: linear-gradient(135deg, rgba(15, 25, 50, .55) 0%, rgba(0, 0, 0, .08) 65%)\n}\n\n.hx-hero-cert-stack {\n  position: absolute;\n  top: 20px;\n  right: 20px;\n  display: flex;\n  flex-direction: column;\n  gap: 8px\n}\n\n.hx-hero-cert {\n  background: rgba(255, 255, 255, .15);\n  backdrop-filter: blur(10px);\n  border: 1px solid rgba(255, 255, 255, .3);\n  border-radius: 6px;\n  padding: 5px 12px;\n  font-size: 11px;\n  color: #fff;\n  font-weight: 500\n}\n\n.hx-hero-element {\n  position: absolute;\n  bottom: 20px;\n  left: 20px;\n  background: rgba(255, 255, 255, .12);\n  backdrop-filter: blur(14px);\n  border: 1px solid rgba(255, 255, 255, .25);\n  border-radius: 10px;\n  padding: 12px 20px\n}\n\n.hx-hero-element .sym {\n  font-size: 32px;\n  font-weight: 900;\n  color: #fff;\n  font-family: 'Roboto Condensed', sans-serif;\n  line-height: 1\n}\n\n.hx-hero-element .sym-name {\n  font-size: 11px;\n  color: rgba(255, 255, 255, .82);\n  letter-spacing: 1px;\n  text-transform: uppercase;\n  margin-top: 2px\n}\n\n.hx-stats {\n  background: var(--primary);\n  padding: 28px 48px\n}\n\n.hx-stats-inner {\n  max-width: 1200px;\n  margin: 0 auto;\n  display: grid;\n  grid-template-columns: repeat(4, 1fr)\n}\n\n.hx-stat {\n  text-align: center;\n  padding: 0 20px;\n  border-right: 1px solid rgba(255, 255, 255, .2)\n}\n\n.hx-stat:last-child {\n  border-right: none\n}\n\n.hx-stat-num {\n  font-size: 28px;\n  font-weight: 900;\n  color: #fff;\n  letter-spacing: -1px;\n  line-height: 1\n}\n\n.hx-stat-label {\n  font-size: 13px;\n  color: rgba(255, 255, 255, .75);\n  margin-top: 5px\n}\n\n.hx-section {\n  max-width: 1200px;\n  margin: 0 auto;\n  padding: 72px 48px\n}\n\n.hx-section+.hx-section {\n  padding-top: 0\n}\n\n.hx-section-label {\n  font-size: 11px;\n  font-weight: 700;\n  letter-spacing: 2px;\n  text-transform: uppercase;\n  color: var(--accent);\n  margin-bottom: 10px\n}\n\n.hx-section-title {\n  font-size: 32px;\n  font-weight: 800;\n  letter-spacing: -.7px;\n  margin-bottom: 14px;\n  line-height: 1.15\n}\n\n.hx-section-sub {\n  font-size: 15px;\n  color: var(--text-secondary);\n  line-height: 1.65;\n  max-width: 580px;\n  margin-bottom: 40px\n}\n\n.hx-types {\n  display: grid;\n  grid-template-columns: repeat(3, 1fr);\n  gap: 18px;\n  margin-bottom: 0\n}\n\n.hx-type-card {\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  padding: 24px;\n  border-top: 3px solid var(--primary)\n}\n\n.hx-type-card h4 {\n  font-size: 15px;\n  font-weight: 700;\n  margin-bottom: 8px\n}\n\n.hx-type-card p {\n  font-size: 13px;\n  color: var(--text-secondary);\n  line-height: 1.6;\n  margin-bottom: 14px\n}\n\n.hx-tag {\n  display: inline-block;\n  background: var(--bg-secondary);\n  border-radius: 4px;\n  padding: 3px 10px;\n  font-size: 11px;\n  font-weight: 600;\n  color: var(--text-secondary);\n  margin-right: 5px;\n  margin-top: 4px\n}\n\n.hx-process {\n  display: grid;\n  grid-template-columns: repeat(4, 1fr);\n  gap: 2px;\n  background: var(--border);\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  overflow: hidden\n}\n\n.hx-step {\n  background: var(--bg-block);\n  padding: 28px 24px\n}\n\n.hx-step-num {\n  font-size: 44px;\n  font-weight: 900;\n  color: var(--bg-secondary);\n  font-family: 'Roboto Condensed', sans-serif;\n  line-height: 1;\n  margin-bottom: 16px\n}\n\n.hx-step-icon {\n  width: 42px;\n  height: 42px;\n  background: var(--bg-secondary);\n  border-radius: 10px;\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  margin-bottom: 14px\n}\n\n.hx-step-icon svg {\n  width: 20px;\n  height: 20px;\n  stroke: var(--primary);\n  fill: none;\n  stroke-width: 2;\n  stroke-linecap: round;\n  stroke-linejoin: round\n}\n\n.hx-step h4 {\n  font-size: 14px;\n  font-weight: 700;\n  margin-bottom: 8px\n}\n\n.hx-step p {\n  font-size: 13px;\n  color: var(--text-secondary);\n  line-height: 1.6\n}\n\n.hx-specs {\n  display: grid;\n  grid-template-columns: 1fr 1fr;\n  gap: 20px\n}\n\n.hx-specs-card {\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  overflow: hidden\n}\n\n.hx-specs-head {\n  background: var(--bg-secondary);\n  padding: 14px 22px;\n  font-size: 12px;\n  font-weight: 700;\n  text-transform: uppercase;\n  letter-spacing: 1px;\n  color: var(--text-secondary);\n  border-bottom: 1px solid var(--border)\n}\n\n.hx-spec-row {\n  display: flex;\n  justify-content: space-between;\n  align-items: center;\n  padding: 13px 22px;\n  border-bottom: 1px solid var(--bg-secondary)\n}\n\n.hx-spec-row:last-child {\n  border-bottom: none\n}\n\n.hx-spec-k {\n  font-size: 13px;\n  color: var(--text-secondary)\n}\n\n.hx-spec-v {\n  font-size: 13px;\n  font-weight: 600;\n  color: var(--text-primary)\n}\n\n.hx-gallery-wrap {\n  background: var(--bg-secondary);\n  border-top: 1px solid var(--border);\n  border-bottom: 1px solid var(--border)\n}\n\n.hx-gallery-inner {\n  max-width: 1200px;\n  margin: 0 auto;\n  padding: 72px 48px\n}\n\n.hx-gallery-grid {\n  display: grid;\n  grid-template-columns: repeat(3, 1fr);\n  gap: 20px;\n  margin-top: 40px\n}\n\n.hx-gallery-card {\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-radius: 14px;\n  overflow: hidden;\n  transition: box-shadow .25s, transform .22s\n}\n\n.hx-gallery-card:hover {\n  box-shadow: 0 10px 36px rgba(37, 99, 235, .11);\n  transform: translateY(-3px)\n}\n\n.hx-gallery-img {\n  width: 100%;\n  height: 210px;\n  object-fit: cover;\n  display: block\n}\n\n.hx-gallery-body {\n  padding: 18px 20px\n}\n\n.hx-gallery-tag {\n  display: inline-block;\n  background: rgba(37, 99, 235, .08);\n  color: var(--primary);\n  font-size: 11px;\n  font-weight: 700;\n  padding: 3px 10px;\n  border-radius: 4px;\n  text-transform: uppercase;\n  letter-spacing: .6px;\n  margin-bottom: 8px\n}\n\n.hx-gallery-body h4 {\n  font-size: 15px;\n  font-weight: 700;\n  margin-bottom: 6px;\n  color: var(--text-primary)\n}\n\n.hx-gallery-body p {\n  font-size: 13px;\n  color: var(--text-secondary);\n  line-height: 1.58\n}\n\n.hx-gallery-meta {\n  display: flex;\n  gap: 16px;\n  margin-top: 12px;\n  padding-top: 12px;\n  border-top: 1px solid var(--bg-secondary);\n  flex-wrap: wrap\n}\n\n.hx-gallery-meta span {\n  font-size: 12px;\n  color: var(--text-secondary)\n}\n\n.hx-gallery-meta span strong {\n  color: var(--text-primary);\n  font-weight: 600\n}\n\n.hx-apps {\n  display: grid;\n  grid-template-columns: repeat(3, 1fr);\n  gap: 18px\n}\n\n.hx-app-card {\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  padding: 24px;\n  transition: border-color .2s, box-shadow .2s\n}\n\n.hx-app-card:hover {\n  border-color: var(--primary);\n  box-shadow: 0 4px 20px rgba(37, 99, 235, .08)\n}\n\n.hx-app-icon {\n  width: 44px;\n  height: 44px;\n  border-radius: 10px;\n  background: var(--bg-secondary);\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  margin-bottom: 14px;\n  font-size: 20px\n}\n\n.hx-app-card h4 {\n  font-size: 15px;\n  font-weight: 700;\n  margin-bottom: 7px\n}\n\n.hx-app-card p {\n  font-size: 13px;\n  color: var(--text-secondary);\n  line-height: 1.6\n}\n\n.hx-adv {\n  display: grid;\n  grid-template-columns: repeat(2, 1fr);\n  gap: 14px\n}\n\n.hx-adv-item {\n  display: flex;\n  gap: 14px;\n  align-items: flex-start;\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-radius: 10px;\n  padding: 18px\n}\n\n.hx-adv-icon {\n  width: 34px;\n  height: 34px;\n  background: rgba(37, 99, 235, .08);\n  border-radius: 8px;\n  flex-shrink: 0;\n  display: flex;\n  align-items: center;\n  justify-content: center\n}\n\n.hx-adv-icon svg {\n  width: 16px;\n  height: 16px;\n  stroke: var(--primary);\n  fill: none;\n  stroke-width: 2;\n  stroke-linecap: round;\n  stroke-linejoin: round\n}\n\n.hx-adv-item h5 {\n  font-size: 14px;\n  font-weight: 700;\n  margin-bottom: 4px\n}\n\n.hx-adv-item p {\n  font-size: 13px;\n  color: var(--text-secondary);\n  line-height: 1.55\n}\n\n.hx-faq-wrap {\n  background: var(--bg-block);\n  border-top: 1px solid var(--border)\n}\n\n.hx-faq-inner {\n  max-width: 1200px;\n  margin: 0 auto;\n  padding: 72px 48px\n}\n\n.hx-faq-list {\n  margin-top: 40px;\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  overflow: hidden\n}\n\n.hx-faq-item {\n  border-bottom: 1px solid var(--border)\n}\n\n.hx-faq-item:last-child {\n  border-bottom: none\n}\n\n.hx-faq-q {\n  width: 100%;\n  background: none;\n  border: none;\n  text-align: left;\n  padding: 20px 24px;\n  font-family: 'Roboto', sans-serif;\n  font-size: 15px;\n  font-weight: 700;\n  color: var(--text-primary);\n  cursor: pointer;\n  display: flex;\n  justify-content: space-between;\n  align-items: center;\n  gap: 16px;\n  transition: background .15s\n}\n\n.hx-faq-q:hover {\n  background: var(--bg-secondary)\n}\n\n.hx-faq-icon {\n  width: 26px;\n  height: 26px;\n  border-radius: 50%;\n  background: var(--bg-secondary);\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  flex-shrink: 0;\n  transition: transform .25s, background .2s\n}\n\n.hx-faq-icon svg {\n  width: 12px;\n  height: 12px;\n  stroke: var(--primary);\n  fill: none;\n  stroke-width: 2.5;\n  stroke-linecap: round;\n  transition: stroke .2s\n}\n\n.hx-faq-item.open .hx-faq-icon {\n  transform: rotate(45deg);\n  background: var(--primary)\n}\n\n.hx-faq-item.open .hx-faq-icon svg {\n  stroke: #fff\n}\n\n.hx-faq-a {\n  display: none;\n  padding: 0 24px 22px 24px;\n  font-size: 14px;\n  color: var(--text-secondary);\n  line-height: 1.78\n}\n\n.hx-faq-item.open .hx-faq-a {\n  display: block\n}\n\n.hx-cta {\n  background: var(--text-primary);\n  padding: 72px 48px\n}\n\n.hx-cta-inner {\n  max-width: 1200px;\n  margin: 0 auto;\n  display: grid;\n  grid-template-columns: 1fr auto;\n  gap: 48px;\n  align-items: center\n}\n\n.hx-cta h2 {\n  font-size: 32px;\n  font-weight: 800;\n  color: #fff;\n  letter-spacing: -.7px;\n  margin-bottom: 10px\n}\n\n.hx-cta p {\n  font-size: 15px;\n  color: rgba(255, 255, 255, .65);\n  line-height: 1.65;\n  max-width: 520px\n}\n\n.hx-cta-btns {\n  display: flex;\n  flex-direction: column;\n  gap: 12px;\n  min-width: 180px\n}\n\n.hx-btn-white {\n  background: #fff;\n  color: var(--primary);\n  padding: 13px 28px;\n  border-radius: 8px;\n  font-size: 14px;\n  font-weight: 700;\n  text-decoration: none;\n  text-align: center;\n  white-space: nowrap\n}\n\n.hx-btn-outline {\n  border: 1px solid rgba(255, 255, 255, .3);\n  color: rgba(255, 255, 255, .85);\n  padding: 13px 28px;\n  border-radius: 8px;\n  font-size: 14px;\n  font-weight: 600;\n  text-decoration: none;\n  text-align: center;\n  white-space: nowrap\n}\n\n@media(max-width:900px) {\n  .hx-hero {\n    grid-template-columns: 1fr;\n    gap: 36px;\n    padding: 48px 24px\n  }\n\n  .hx-hero-img-wrap {\n    height: 260px\n  }\n\n  .hx-hero h1 {\n    font-size: 34px\n  }\n\n  .hx-stats-inner {\n    grid-template-columns: repeat(2, 1fr)\n  }\n\n  .hx-stat {\n    border-right: none;\n    padding-bottom: 16px\n  }\n\n  .hx-types {\n    grid-template-columns: 1fr\n  }\n\n  .hx-process {\n    grid-template-columns: repeat(2, 1fr)\n  }\n\n  .hx-specs {\n    grid-template-columns: 1fr\n  }\n\n  .hx-apps {\n    grid-template-columns: repeat(2, 1fr)\n  }\n\n  .hx-adv {\n    grid-template-columns: 1fr\n  }\n\n  .hx-gallery-grid {\n    grid-template-columns: 1fr\n  }\n\n  .hx-cta-inner {\n    grid-template-columns: 1fr\n  }\n\n  .hx-section, .hx-faq-inner, .hx-gallery-inner {\n    padding: 48px 24px\n  }\n\n  .hx-stats {\n    padding: 24px\n  }\n\n  .hx-cta {\n    padding: 48px 24px\n  }\n}\n\n@media(max-width:580px) {\n  .hx-hero h1 {\n    font-size: 28px\n  }\n\n  .hx-process {\n    grid-template-columns: 1fr\n  }\n\n  .hx-apps {\n    grid-template-columns: 1fr\n  }\n}\n\n\/* EXTRA COMPONENT STYLES *\/\n.hx-notice {\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-left: 4px solid var(--accent);\n  border-radius: 8px;\n  padding: 18px 22px;\n  margin-bottom: 20px;\n  display: flex;\n  gap: 14px;\n  align-items: flex-start\n}\n\n.hx-notice-icon {\n  font-size: 18px;\n  margin-top: 1px;\n  flex-shrink: 0\n}\n\n.hx-notice h4 {\n  font-size: 14px;\n  font-weight: 700;\n  margin-bottom: 4px\n}\n\n.hx-notice p {\n  font-size: 13px;\n  color: var(--text-secondary);\n  line-height: 1.6\n}\n\n.hx-props {\n  display: grid;\n  grid-template-columns: repeat(4, 1fr);\n  gap: 16px\n}\n\n.hx-prop {\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  padding: 22px;\n  text-align: center\n}\n\n.hx-prop-val {\n  font-size: 22px;\n  font-weight: 900;\n  color: var(--primary);\n  letter-spacing: -.3px;\n  margin-bottom: 4px;\n  line-height: 1.1\n}\n\n.hx-prop-label {\n  font-size: 13px;\n  color: var(--text-secondary);\n  font-weight: 500\n}\n\n.hx-prop-desc {\n  font-size: 12px;\n  color: var(--text-secondary);\n  margin-top: 8px;\n  line-height: 1.5\n}\n\n.hx-finish-grid {\n  display: grid;\n  grid-template-columns: repeat(4, 1fr);\n  gap: 16px\n}\n\n.hx-finish-card {\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  padding: 22px;\n  text-align: center\n}\n\n.hx-finish-swatch {\n  width: 52px;\n  height: 52px;\n  border-radius: 10px;\n  margin: 0 auto 14px;\n  border: 1px solid rgba(0, 0, 0, .08)\n}\n\n.hx-finish-card h4 {\n  font-size: 14px;\n  font-weight: 700;\n  margin-bottom: 6px\n}\n\n.hx-finish-card p {\n  font-size: 12px;\n  color: var(--text-secondary);\n  line-height: 1.55\n}\n\n.hx-gold-grades {\n  display: grid;\n  grid-template-columns: repeat(4, 1fr);\n  gap: 16px\n}\n\n.hx-grade {\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  padding: 22px\n}\n\n.hx-purity-bar {\n  height: 4px;\n  border-radius: 2px;\n  background: var(--bg-secondary);\n  margin-bottom: 14px;\n  overflow: hidden\n}\n\n.hx-purity-fill {\n  height: 100%;\n  background: linear-gradient(90deg, #B8902A, #E4C058);\n  border-radius: 2px\n}\n\n.hx-grade-karat {\n  font-size: 24px;\n  font-weight: 900;\n  color: var(--primary);\n  margin-bottom: 4px\n}\n\n.hx-grade h4 {\n  font-size: 14px;\n  font-weight: 700;\n  margin-bottom: 7px\n}\n\n.hx-grade p {\n  font-size: 13px;\n  color: var(--text-secondary);\n  line-height: 1.55\n}\n\n.hx-variants {\n  display: grid;\n  grid-template-columns: repeat(4, 1fr);\n  gap: 16px\n}\n\n.hx-variant {\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  padding: 22px\n}\n\n.hx-variant-name {\n  font-size: 16px;\n  font-weight: 900;\n  color: var(--primary);\n  font-family: 'Roboto Condensed', sans-serif;\n  margin-bottom: 6px\n}\n\n.hx-variant h4 {\n  font-size: 13px;\n  font-weight: 700;\n  margin-bottom: 8px;\n  color: var(--text-secondary);\n  text-transform: uppercase;\n  letter-spacing: .5px\n}\n\n.hx-variant p {\n  font-size: 12px;\n  color: var(--text-secondary);\n  line-height: 1.55;\n  margin-bottom: 12px\n}\n\n.hx-types {\n  display: grid;\n  grid-template-columns: repeat(3, 1fr);\n  gap: 18px\n}\n\n.hx-type-card {\n  background: var(--bg-block);\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  padding: 24px;\n  border-top: 3px solid var(--primary)\n}\n\n.hx-type-card h4 {\n  font-size: 15px;\n  font-weight: 700;\n  margin-bottom: 8px\n}\n\n.hx-type-card p {\n  font-size: 13px;\n  color: var(--text-secondary);\n  line-height: 1.6;\n  margin-bottom: 14px\n}\n\n.hx-tag {\n  display: inline-block;\n  background: var(--bg-secondary);\n  border-radius: 4px;\n  padding: 3px 10px;\n  font-size: 11px;\n  font-weight: 600;\n  color: var(--text-secondary);\n  margin-right: 5px;\n  margin-top: 4px\n}\n\n.hx-compare {\n  width: 100%;\n  border-collapse: collapse;\n  border: 1px solid var(--border);\n  border-radius: 12px;\n  overflow: hidden;\n  background: var(--bg-block)\n}\n\n.hx-compare th {\n  background: var(--bg-secondary);\n  padding: 13px 20px;\n  text-align: left;\n  font-size: 12px;\n  font-weight: 700;\n  text-transform: uppercase;\n  letter-spacing: .8px;\n  color: var(--text-secondary);\n  border-bottom: 1px solid var(--border)\n}\n\n.hx-compare td {\n  padding: 13px 20px;\n  font-size: 13px;\n  border-bottom: 1px solid var(--bg-secondary)\n}\n\n.hx-compare tr:last-child td {\n  border-bottom: none\n}\n\n.hx-compare td:first-child {\n  font-weight: 600;\n  color: var(--text-primary)\n}\n\n@media(max-width:900px) {\n  .hx-props, .hx-finish-grid, .hx-gold-grades, .hx-variants {\n    grid-template-columns: repeat(2, 1fr)\n  }\n\n  .hx-types {\n    grid-template-columns: 1fr\n  }\n}\n\n@media(max-width:580px) {\n  .hx-props, .hx-finish-grid, .hx-gold-grades, .hx-variants {\n    grid-template-columns: 1fr\n  }\n}\n\n<\/style>\n\n\n<div class=\"hx-wrap\">\n  <div class=\"hx-hero-wrap\">\n    <div class=\"hx-hero\">\n      <div>\n        <div class=\"hx-badge\">Surface Finishing<\/div>\n        <h1>PTFE Coating<br><em>Services<\/em><\/h1>\n        <p class=\"hx-hero-desc\">Pure and reinforced PTFE fluoropolymer coatings \u2014 including PTFE, PFA, FEP, and ETFE systems \u2014 engineered for ultra-low friction, broad chemical resistance, and continuous high-temperature service. All formulations PFOA-free.<\/p>\n        <div class=\"hx-actions\"><a href=\"\/contact\" class=\"hx-btn-primary\">Request a Quote<\/a><a href=\"#hx-specs\" class=\"hx-btn-link\">View Specs \u2192<\/a><\/div>\n      <\/div>\n      <div class=\"hx-hero-img-wrap\"><img decoding=\"async\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Precision-Threaded-Fastener-Sets-ptfe.webp\" alt=\"Fluoropolymer Coating System HXCNC\" loading=\"eager\">\n        <div class=\"hx-hero-img-overlay\"><\/div>\n        <div class=\"hx-hero-cert-stack\"><span class=\"hx-hero-cert\">ISO 9001:2015<\/span><span class=\"hx-hero-cert\">FDA 21 CFR<\/span><span class=\"hx-hero-cert\">PFOA-Free<\/span><\/div>\n        <div class=\"hx-hero-element\">\n          <div class=\"sym\">PTFE<\/div>\n          <div class=\"sym-name\">Fluoropolymer Coating System<\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n  <div class=\"hx-stats\">\n    <div class=\"hx-stats-inner\">\n      <div class=\"hx-stat\">\n        <div class=\"hx-stat-num\">0.04 \u03bc<\/div>\n        <div class=\"hx-stat-label\">Coefficient of Friction<\/div>\n      <\/div>\n      <div class=\"hx-stat\">\n        <div class=\"hx-stat-num\">260\u00b0C<\/div>\n        <div class=\"hx-stat-label\">Continuous Service Temp<\/div>\n      <\/div>\n      <div class=\"hx-stat\">\n        <div class=\"hx-stat-num\">Universal<\/div>\n        <div class=\"hx-stat-label\">Chemical Resistance<\/div>\n      <\/div>\n      <div class=\"hx-stat\">\n        <div class=\"hx-stat-num\">5\u20137 Days<\/div>\n        <div class=\"hx-stat-label\">Lead Time<\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n  <div class=\"hx-section\">\n    <div class=\"hx-section-label\">Fluoropolymer Options<\/div>\n    <div class=\"hx-section-title\">PTFE Coating System Variants<\/div>\n    <p class=\"hx-section-sub\">We offer the full range of fluoropolymer coating chemistries, each optimised for specific performance priorities and processing requirements.<\/p>\n    <div class=\"hx-variants\">\n      <div class=\"hx-variant\">\n        <div class=\"hx-variant-name\">PTFE<\/div>\n        <h4>Polytetrafluoroethylene<\/h4>\n        <p>The benchmark fluoropolymer. Lowest friction, widest chemical resistance, broadest temperature range. Pure non-stick for the most demanding applications.<\/p><span class=\"hx-tag\">\u2013200 to +260\u00b0C<\/span><span class=\"hx-tag\">\u03bc = 0.04<\/span>\n      <\/div>\n      <div class=\"hx-variant\">\n        <div class=\"hx-variant-name\">PFA<\/div>\n        <h4>Perfluoroalkoxy<\/h4>\n        <p>Melt-processable fluoropolymer with smoother, thicker film capability. Superior film continuity preferred for chemical lining and barrier applications.<\/p><span class=\"hx-tag\">Up to 260\u00b0C<\/span><span class=\"hx-tag\">Thick Film<\/span>\n      <\/div>\n      <div class=\"hx-variant\">\n        <div class=\"hx-variant-name\">FEP<\/div>\n        <h4>Fluorinated Ethylene Propylene<\/h4>\n        <p>Lower processing temperature. Excellent surface clarity and smooth non-stick properties. Good for food contact and optical applications up to 200\u00b0C.<\/p><span class=\"hx-tag\">Up to 200\u00b0C<\/span><span class=\"hx-tag\">Low Porosity<\/span>\n      <\/div>\n      <div class=\"hx-variant\">\n        <div class=\"hx-variant-name\">ETFE<\/div>\n        <h4>Ethylene Tetrafluoroethylene<\/h4>\n        <p>Superior mechanical strength and abrasion resistance among fluoropolymers. Best for high-wear applications requiring both fluoropolymer chemistry and toughness.<\/p><span class=\"hx-tag\">High Wear Resistance<\/span><span class=\"hx-tag\">Tough Film<\/span>\n      <\/div>\n    <\/div>\n  <\/div>\n  <div class=\"hx-section\">\n    <div class=\"hx-section-label\">PTFE vs. Teflon\u2122<\/div>\n    <div class=\"hx-section-title\">Understanding the Relationship<\/div>\n    <p class=\"hx-section-sub\">Clarifying the commonly misunderstood terminology between PTFE and Teflon\u2122 brand coatings.<\/p>\n    <div class=\"hx-notice\">\n      <div class=\"hx-notice-icon\">\u2139\ufe0f<\/div>\n      <div>\n        <h4>PTFE Coating and Teflon\u2122 Coating are the Same Material<\/h4>\n        <p>Teflon\u2122 is the registered trademark of Chemours for PTFE. Our industrial fluoropolymer coating service covers both branded Teflon\u2122 systems and equivalent high-performance PTFE products from approved suppliers. All formulations are PFOA-free and RoHS compliant.<\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n  <div class=\"hx-section\">\n    <div class=\"hx-section-label\">Process Overview<\/div>\n    <div class=\"hx-section-title\">PTFE Coating Application Process<\/div>\n    <p class=\"hx-section-sub\">Controlled multi-layer application and precision sintering delivers a dense, well-adhered fluoropolymer film with consistent thickness and surface properties.<\/p>\n    <div class=\"hx-process\">\n      <div class=\"hx-step\">\n        <div class=\"hx-step-num\">01<\/div>\n        <div class=\"hx-step-icon\"><svg viewBox=\"0 0 24 24\">\n            <path d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\" \/>\n          <\/svg><\/div>\n        <h4>Blasting & Degreasing<\/h4>\n        <p>Grit blast to Sa 2.5 for anchor profile. Solvent wipe and oven dry to remove all surface oil, moisture, and contamination prior to coating.<\/p>\n      <\/div>\n      <div class=\"hx-step\">\n        <div class=\"hx-step-num\">02<\/div>\n        <div class=\"hx-step-icon\"><svg viewBox=\"0 0 24 24\">\n            <path d=\"M4 15s1-1 4-1 5 2 8 2 4-1 4-1V3s-1 1-4 1-5-2-8-2-4 1-4 1z\" \/>\n          <\/svg><\/div>\n        <h4>Primer Application<\/h4>\n        <p>Fluoropolymer adhesion primer applied by spray and flash-dried at 80\u2013100\u00b0C to provide the bonding layer for subsequent PTFE topcoats.<\/p>\n      <\/div>\n      <div class=\"hx-step\">\n        <div class=\"hx-step-num\">03<\/div>\n        <div class=\"hx-step-icon\"><svg viewBox=\"0 0 24 24\">\n            <path d=\"M12 2a10 10 0 1 0 0 20 10 10 0 0 0 0-20zM12 6v6l4 2\" \/>\n          <\/svg><\/div>\n        <h4>PTFE Topcoat Layers<\/h4>\n        <p>One to three topcoat layers applied and flash-dried sequentially. Layer count determines total film thickness and pinhole elimination through the full film depth.<\/p>\n      <\/div>\n      <div class=\"hx-step\">\n        <div class=\"hx-step-num\">04<\/div>\n        <div class=\"hx-step-icon\"><svg viewBox=\"0 0 24 24\">\n            <path d=\"M20 6 9 17l-5-5\" \/>\n          <\/svg><\/div>\n        <h4>Sintering & QC<\/h4>\n        <p>Sintered at 370\u2013420\u00b0C to fuse PTFE into a continuous dense film. DFT measurement, holiday test, and adhesion cross-hatch on cooled parts.<\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n  <div class=\"hx-section\" id=\"hx-specs\">\n    <div class=\"hx-section-label\">Technical Data<\/div>\n    <div class=\"hx-section-title\">Process Specifications<\/div>\n    <p class=\"hx-section-sub\"><\/p>\n    <div class=\"hx-specs\">\n      <div class=\"hx-specs-card\">\n        <div class=\"hx-specs-head\">Coating Parameters<\/div>\n        <div class=\"hx-spec-row\"><span class=\"hx-spec-k\">Film Thickness<\/span><span class=\"hx-spec-v\">15 \u2013 75 \u03bcm<\/span><\/div>\n        <div class=\"hx-spec-row\"><span class=\"hx-spec-k\">Available Polymers<\/span><span class=\"hx-spec-v\">PTFE \/ PFA \/ FEP \/ ETFE<\/span><\/div>\n        <div class=\"hx-spec-row\"><span class=\"hx-spec-k\">Sintering Temp<\/span><span class=\"hx-spec-v\">370 \u2013 420\u00b0C<\/span><\/div>\n        <div class=\"hx-spec-row\"><span class=\"hx-spec-k\">Layers<\/span><span class=\"hx-spec-v\">Primer + 1\u20133 topcoats<\/span><\/div>\n        <div class=\"hx-spec-row\"><span class=\"hx-spec-k\">Colour<\/span><span class=\"hx-spec-v\">Grey \/ Black \/ Silver \/ Custom<\/span><\/div>\n      <\/div>\n      <div class=\"hx-specs-card\">\n        <div class=\"hx-specs-head\">Performance Properties<\/div>\n        <div class=\"hx-spec-row\"><span class=\"hx-spec-k\">Service Temp (PTFE)<\/span><span class=\"hx-spec-v\">-200\u00b0C to +260\u00b0C<\/span><\/div>\n        <div class=\"hx-spec-row\"><span class=\"hx-spec-k\">Friction Coefficient<\/span><span class=\"hx-spec-v\">0.04 \u2013 0.10<\/span><\/div>\n        <div class=\"hx-spec-row\"><span class=\"hx-spec-k\">Chemical Resistance<\/span><span class=\"hx-spec-v\">Universal (except alkali metals)<\/span><\/div>\n        <div class=\"hx-spec-row\"><span class=\"hx-spec-k\">Food Grade<\/span><span class=\"hx-spec-v\">FDA 21 CFR available<\/span><\/div>\n        <div class=\"hx-spec-row\"><span class=\"hx-spec-k\">Substrates<\/span><span class=\"hx-spec-v\">Steel, Al, Cast Iron, Brass, Ti<\/span><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n  <div class=\"hx-gallery-wrap\">\n    <div class=\"hx-gallery-inner\">\n      <div class=\"hx-section-label\">Project Showcase<\/div>\n      <div class=\"hx-section-title\">Real Parts We've Finished<\/div>\n      <p class=\"hx-section-sub\">Recent PTFE fluoropolymer coating projects across chemical processing, food, and precision engineering sectors.<\/p>\n      <div class=\"hx-gallery-grid\">\n        <div class=\"hx-gallery-card\"><img decoding=\"async\" class=\"hx-gallery-img\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Chemical-Reactor-Agitator-Blades-ptfe.webp\" alt=\"Chemical Reactor Agitator Blades\" loading=\"lazy\">\n          <div class=\"hx-gallery-body\"><span class=\"hx-gallery-tag\">Chemical<\/span>\n            <h4>Chemical Reactor Agitator Blades<\/h4>\n            <p>PFA fluoropolymer lining on Hastelloy reactor agitator blades. 50 \u03bcm, chemical barrier against HF and chlorinated solvents, pinhole-free spark-test verified.<\/p>\n            <div class=\"hx-gallery-meta\"><span>Material: <strong>Hastelloy C-276<\/strong><\/span><span>Finish: <strong>PFA Lining 50\u03bcm<\/strong><\/span><\/div>\n          <\/div>\n        <\/div>\n        <div class=\"hx-gallery-card\"><img decoding=\"async\" class=\"hx-gallery-img\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Confectionery-Conveyor-Trays-ptfe.webp\" alt=\"Confectionery Conveyor Trays\" loading=\"lazy\">\n          <div class=\"hx-gallery-body\"><span class=\"hx-gallery-tag\">Food Processing<\/span>\n            <h4>Confectionery Conveyor Trays<\/h4>\n            <p>PTFE non-stick coating on aluminium confectionery conveyor trays. FDA 21 CFR compliant, 25 \u03bcm, easy-release for sticky confectionery products in production.<\/p>\n            <div class=\"hx-gallery-meta\"><span>Material: <strong>Aluminium 5052<\/strong><\/span><span>Finish: <strong>PTFE Non-Stick 25\u03bcm FDA<\/strong><\/span><\/div>\n          <\/div>\n        <\/div>\n        <div class=\"hx-gallery-card\"><img decoding=\"async\" class=\"hx-gallery-img\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Precision-Threaded-Fastener-Sets-ptfe.webp\" alt=\"Precision Threaded Fastener Sets\" loading=\"lazy\">\n          <div class=\"hx-gallery-body\"><span class=\"hx-gallery-tag\">Engineering<\/span>\n            <h4>Precision Threaded Fastener Sets<\/h4>\n            <p>PTFE dry-film lubricant on stainless fasteners. 10 \u03bcm, prevents galling on 316L assemblies, reduces assembly torque by 40% measured on customer assembly line.<\/p>\n            <div class=\"hx-gallery-meta\"><span>Material: <strong>316L Stainless Steel<\/strong><\/span><span>Finish: <strong>PTFE Dry Film 10\u03bcm<\/strong><\/span><\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n  <div class=\"hx-section\">\n    <div class=\"hx-section-label\">Applications<\/div>\n    <div class=\"hx-section-title\">Industry Applications<\/div>\n    <p class=\"hx-section-sub\"><\/p>\n    <div class=\"hx-apps\">\n      <div class=\"hx-app-card\">\n        <div class=\"hx-app-icon\">\u2699\ufe0f<\/div>\n        <h4>Precision Molds<\/h4>\n        <p>Injection molds, rubber molds, and composite tooling coated with PTFE for easy demoulding, extended tool life, and surface quality.<\/p>\n      <\/div>\n      <div class=\"hx-app-card\">\n        <div class=\"hx-app-icon\">\ud83d\udd2c<\/div>\n        <h4>Chemical Processing<\/h4>\n        <p>Reactor vessels, agitator blades, heat exchangers, and piping requiring PFA lining for aggressive acid and solvent service.<\/p>\n      <\/div>\n      <div class=\"hx-app-card\">\n        <div class=\"hx-app-icon\">\ud83c\udf55<\/div>\n        <h4>Food Equipment<\/h4>\n        <p>Baking pans, chutes, hoppers, and conveyors requiring FDA-compliant PTFE non-stick coating for easy clean and food release.<\/p>\n      <\/div>\n      <div class=\"hx-app-card\">\n        <div class=\"hx-app-icon\">\ud83d\udd27<\/div>\n        <h4>Fasteners & Threads<\/h4>\n        <p>Threaded fasteners, bolts, and fittings coated with PTFE for lubrication, galling prevention, and corrosion protection.<\/p>\n      <\/div>\n      <div class=\"hx-app-card\">\n        <div class=\"hx-app-icon\">\ud83c\udfe5<\/div>\n        <h4>Medical Equipment<\/h4>\n        <p>Surgical instruments, medical device housings, and diagnostic equipment requiring biocompatible, sterilisation-resistant surfaces.<\/p>\n      <\/div>\n      <div class=\"hx-app-card\">\n        <div class=\"hx-app-icon\">\ud83c\udfed<\/div>\n        <h4>Actuators & Bearings<\/h4>\n        <p>Bearing housings, linear actuators, and sliding components requiring dry-film lubrication with PTFE or ETFE coatings.<\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n  <div class=\"hx-section\">\n    <div class=\"hx-section-label\">Why Choose Us<\/div>\n    <div class=\"hx-section-title\">Key Advantages<\/div>\n    <p class=\"hx-section-sub\"><\/p>\n    <div class=\"hx-adv\">\n      <div class=\"hx-adv-item\">\n        <div class=\"hx-adv-icon\"><svg viewBox=\"0 0 24 24\">\n            <path d=\"M22 12h-4l-3 9L9 3l-3 9H2\" \/>\n          <\/svg><\/div>\n        <div>\n          <h5>Full Fluoropolymer Range<\/h5>\n          <p>PTFE, PFA, FEP, and ETFE all available in-house. Single supplier for your entire fluoropolymer coating requirement across all part types and application environments.<\/p>\n        <\/div>\n      <\/div>\n      <div class=\"hx-adv-item\">\n        <div class=\"hx-adv-icon\"><svg viewBox=\"0 0 24 24\">\n            <path d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\" \/>\n          <\/svg><\/div>\n        <div>\n          <h5>PFOA-Free & Regulatory Compliant<\/h5>\n          <p>All coating systems use PFOA-free formulations. FDA 21 CFR food-contact grade available. Full SDS and compliance documentation provided with every order.<\/p>\n        <\/div>\n      <\/div>\n      <div class=\"hx-adv-item\">\n        <div class=\"hx-adv-icon\"><svg viewBox=\"0 0 24 24\">\n            <path d=\"M12 2a10 10 0 1 0 0 20 10 10 0 0 0 0-20zM12 6v6l4 2\" \/>\n          <\/svg><\/div>\n        <div>\n          <h5>Precise Film Thickness Control<\/h5>\n          <p>DFT measured 100% with calibrated gauge. Multiple topcoat layers eliminate pinholes, ensuring continuous film for chemical barrier applications.<\/p>\n        <\/div>\n      <\/div>\n      <div class=\"hx-adv-item\">\n        <div class=\"hx-adv-icon\"><svg viewBox=\"0 0 24 24\">\n            <path d=\"M2 3h20v14H2zm6 18h8m-4-4v4\" \/>\n          <\/svg><\/div>\n        <div>\n          <h5>Engineering Application Support<\/h5>\n          <p>Our coating engineers advise on fluoropolymer selection, substrate preparation, thickness specification, and post-coat dimensional allowances for your application.<\/p>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n  <script type=\"application\/ld+json\">\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"name\": \"PTFE Coating Services FAQ \\u2014 HXCNC\",\n    \"url\": \"https:\/\/www.hxcnc.com\/ptfe-coating\",\n    \"mainEntity\": [{\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between PTFE, PFA, FEP, and ETFE?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"PTFE has the lowest friction (\\u03bc=0.04) and widest temperature range (-200\\u00b0C to +260\\u00b0C) but cannot be melt-processed in thick films. PFA is melt-processable and allows thicker, smoother film application preferred for chemical lining. FEP has similar properties but is processable at lower temperatures (max 200\\u00b0C) with excellent surface smoothness. ETFE has significantly higher mechanical strength and abrasion resistance, ideal for high-wear applications.\"\n      }\n    }, {\n      \"@type\": \"Question\",\n      \"name\": \"Can PTFE coating prevent galling on stainless steel fasteners?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. PTFE dry-film lubrication on stainless steel threads is very effective at preventing galling (cold welding) during assembly \\u2014 a common problem with 316L and 304 fasteners. A 10\\u201315 \\u03bcm PTFE coating reduces assembly torque by 30\\u201350% and virtually eliminates galling risk. It also provides corrosion protection for storage and service.\"\n      }\n    }, {\n      \"@type\": \"Question\",\n      \"name\": \"What is the maximum service temperature for PTFE coating?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"PTFE provides continuous service up to 260\\u00b0C. Short-term excursions to 290\\u00b0C are acceptable. Above 260\\u00b0C continuous use, thermal degradation begins and the coating gradually softens. For continuous service above 260\\u00b0C, PFA (260\\u00b0C max with better high-temperature film integrity) is recommended as an alternative.\"\n      }\n    }, {\n      \"@type\": \"Question\",\n      \"name\": \"Is PTFE coating chemically resistant to all acids and solvents?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"PTFE has virtually universal chemical resistance. The main exceptions are molten alkali metals (sodium, potassium), fluorine gas at elevated temperatures, and a few specific fluorinated solvents. PTFE is resistant to all common industrial acids (HCl, H\\u2082SO\\u2084, HNO\\u2083, HF), bases, and organic solvents. Please provide your chemical list and we will confirm compatibility.\"\n      }\n    }, {\n      \"@type\": \"Question\",\n      \"name\": \"Can PTFE coated parts be re-coated when worn?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Worn PTFE coatings can be completely stripped and the part re-coated. Stripping is done by thermal or chemical means depending on the substrate material. The substrate is re-blasted to restore the anchor profile, then the full coating system is reapplied. The original substrate dimensions must accommodate the additional coating thickness.\"\n      }\n    }, {\n      \"@type\": \"Question\",\n      \"name\": \"What minimum thickness is required for a chemical barrier application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For chemical barrier applications (e.g., acid resistance on reactor internals), we recommend a minimum of 3 topcoat layers producing 40\\u201350 \\u03bcm total DFT. The multi-layer approach ensures no pinholes penetrate the full film depth. A holiday (spark) test verifies film continuity. For immersion in concentrated acids, PFA in the 50\\u201375 \\u03bcm range is preferred.\"\n      }\n    }]\n  }\n\n  <\/script>\n  <div class=\"hx-faq-wrap\">\n    <div class=\"hx-faq-inner\">\n      <div class=\"hx-section-label\">FAQ<\/div>\n      <div class=\"hx-section-title\">Frequently Asked Questions<\/div>\n      <p class=\"hx-section-sub\">Everything you need to know before ordering. <a href=\"\/contact\" style=\"color:var(--primary);font-weight:600\">Contact our team \u2192<\/a><\/p>\n      <div class=\"hx-faq-list\">\n        <div class=\"hx-faq-item\"><button class=\"hx-faq-q\">What is the difference between PTFE, PFA, FEP, and ETFE?<span class=\"hx-faq-icon\"><svg viewBox=\"0 0 24 24\">\n                <line x1=\"12\" y1=\"5\" x2=\"12\" y2=\"19\" \/>\n                <line x1=\"5\" y1=\"12\" x2=\"19\" y2=\"12\" \/>\n              <\/svg><\/span><\/button>\n          <div class=\"hx-faq-a\">PTFE has the lowest friction (\u03bc=0.04) and widest temperature range (-200\u00b0C to +260\u00b0C) but cannot be melt-processed in thick films. PFA is melt-processable and allows thicker, smoother film application preferred for chemical lining. FEP has similar properties but is processable at lower temperatures (max 200\u00b0C) with excellent surface smoothness. ETFE has significantly higher mechanical strength and abrasion resistance, ideal for high-wear applications.<\/div>\n        <\/div>\n        <div class=\"hx-faq-item\"><button class=\"hx-faq-q\">Can PTFE coating prevent galling on stainless steel fasteners?<span class=\"hx-faq-icon\"><svg viewBox=\"0 0 24 24\">\n                <line x1=\"12\" y1=\"5\" x2=\"12\" y2=\"19\" \/>\n                <line x1=\"5\" y1=\"12\" x2=\"19\" y2=\"12\" \/>\n              <\/svg><\/span><\/button>\n          <div class=\"hx-faq-a\">Yes. PTFE dry-film lubrication on stainless steel threads is very effective at preventing galling (cold welding) during assembly \u2014 a common problem with 316L and 304 fasteners. A 10\u201315 \u03bcm PTFE coating reduces assembly torque by 30\u201350% and virtually eliminates galling risk. It also provides corrosion protection for storage and service.<\/div>\n        <\/div>\n        <div class=\"hx-faq-item\"><button class=\"hx-faq-q\">What is the maximum service temperature for PTFE coating?<span class=\"hx-faq-icon\"><svg viewBox=\"0 0 24 24\">\n                <line x1=\"12\" y1=\"5\" x2=\"12\" y2=\"19\" \/>\n                <line x1=\"5\" y1=\"12\" x2=\"19\" y2=\"12\" \/>\n              <\/svg><\/span><\/button>\n          <div class=\"hx-faq-a\">PTFE provides continuous service up to 260\u00b0C. Short-term excursions to 290\u00b0C are acceptable. Above 260\u00b0C continuous use, thermal degradation begins and the coating gradually softens. For continuous service above 260\u00b0C, PFA (260\u00b0C max with better high-temperature film integrity) is recommended as an alternative.<\/div>\n        <\/div>\n        <div class=\"hx-faq-item\"><button class=\"hx-faq-q\">Is PTFE coating chemically resistant to all acids and solvents?<span class=\"hx-faq-icon\"><svg viewBox=\"0 0 24 24\">\n                <line x1=\"12\" y1=\"5\" x2=\"12\" y2=\"19\" \/>\n                <line x1=\"5\" y1=\"12\" x2=\"19\" y2=\"12\" \/>\n              <\/svg><\/span><\/button>\n          <div class=\"hx-faq-a\">PTFE has virtually universal chemical resistance. The main exceptions are molten alkali metals (sodium, potassium), fluorine gas at elevated temperatures, and a few specific fluorinated solvents. PTFE is resistant to all common industrial acids (HCl, H\u2082SO\u2084, HNO\u2083, HF), bases, and organic solvents. Please provide your chemical list and we will confirm compatibility.<\/div>\n        <\/div>\n        <div class=\"hx-faq-item\"><button class=\"hx-faq-q\">Can PTFE coated parts be re-coated when worn?<span class=\"hx-faq-icon\"><svg viewBox=\"0 0 24 24\">\n                <line x1=\"12\" y1=\"5\" x2=\"12\" y2=\"19\" \/>\n                <line x1=\"5\" y1=\"12\" x2=\"19\" y2=\"12\" \/>\n              <\/svg><\/span><\/button>\n          <div class=\"hx-faq-a\">Yes. Worn PTFE coatings can be completely stripped and the part re-coated. Stripping is done by thermal or chemical means depending on the substrate material. The substrate is re-blasted to restore the anchor profile, then the full coating system is reapplied. The original substrate dimensions must accommodate the additional coating thickness.<\/div>\n        <\/div>\n        <div class=\"hx-faq-item\"><button class=\"hx-faq-q\">What minimum thickness is required for a chemical barrier application?<span class=\"hx-faq-icon\"><svg viewBox=\"0 0 24 24\">\n                <line x1=\"12\" y1=\"5\" x2=\"12\" y2=\"19\" \/>\n                <line x1=\"5\" y1=\"12\" x2=\"19\" y2=\"12\" \/>\n              <\/svg><\/span><\/button>\n          <div class=\"hx-faq-a\">For chemical barrier applications (e.g., acid resistance on reactor internals), we recommend a minimum of 3 topcoat layers producing 40\u201350 \u03bcm total DFT. The multi-layer approach ensures no pinholes penetrate the full film depth. A holiday (spark) test verifies film continuity. For immersion in concentrated acids, PFA in the 50\u201375 \u03bcm range is preferred.<\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n<script>\ndocument.querySelectorAll('.hx-faq-q').forEach(function(b) {\n  b.addEventListener('click', function() {\n    var el = this.closest('.hx-faq-item'),\n      was = el.classList.contains('open');\n    document.querySelectorAll('.hx-faq-item.open').forEach(function(x) {\n      x.classList.remove('open')\n    });\n    if (!was) el.classList.add('open');\n  });\n});\n\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-42ed6602 e-con-full e-flex e-con e-parent\" data-id=\"42ed6602\" data-element_type=\"container\" data-e-type=\"container\" id=\"hx-specs\">\n\t\t<div class=\"elementor-element elementor-element-2f20f345 e-con-full e-flex e-con e-child\" data-id=\"2f20f345\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ebf986b elementor-widget elementor-widget-html\" data-id=\"ebf986b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!-- HXCNC CTA Left Panel | namespace .HXCL | Elementor HTML Widget -->\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Roboto:wght@300;400;500;700;900&family=Roboto+Condensed:wght@400;700;900&family=Roboto+Mono:wght@400;500&display=swap\" rel=\"stylesheet\">\n<style>\n.HXCL{\n  --bg:#F7F9FC;--wh:#FFFFFF;--lt:#EEF3F8;\n  --tx:#1F2937;--tx1:#5B6777;--tx2:#9CA8B4;--bd:#D7E0EA;\n  --a:#2563EB;--a2:#1D4ED8;--aA:rgba(37,99,235,.07);--aC:rgba(37,99,235,.20);\n  --ac:#0F766E;--acA:rgba(15,118,110,.08);--acB:rgba(15,118,110,.15);--acC:rgba(15,118,110,.22);\n  --fh:'Roboto Condensed',sans-serif;--fb:'Roboto',sans-serif;--fm:'Roboto 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Quote.<\/em>\n  <\/h2>\n\n  <p class=\"sub\">Every enquiry includes a DFM review \u2014 tolerance feasibility, material confirmation, and process approach confirmed before production starts. MOQ 1 piece.<\/p>\n\n  <!-- Stats row -->\n  <div class=\"stats\">\n    <div class=\"stat\">\n      <div class=\"sv\">24<small>hr<\/small><\/div>\n      <div class=\"sl\">Quote Response<\/div>\n    <\/div>\n    <div class=\"stat\">\n      <div class=\"sv\">MOQ <small>1<\/small><\/div>\n      <div class=\"sl\">Prototypes OK<\/div>\n    <\/div>\n    <div class=\"stat\">\n      <div class=\"sv\">ISO<\/div>\n      <div class=\"sl\">9001:2015<\/div>\n    <\/div>\n  <\/div>\n\n  <!-- Advantage list -->\n  <div class=\"avlist\">\n    <div class=\"avitem\">\n      <div class=\"ico\">&#128208;<\/div>\n      <div>\n        <div class=\"at\">DFM Review on Every Enquiry<\/div>\n        <div class=\"ad\">Tolerance feasibility, fixturing strategy, and material confirmation. Specific, actionable feedback \u2014 not generic pushback.<\/div>\n      <\/div>\n    <\/div>\n    <div class=\"avitem\">\n      <div class=\"ico\">&#127919;<\/div>\n      <div>\n        <div class=\"at\">First Article Inspection \u2014 Standard<\/div>\n        <div class=\"ad\">FAI report on every new run. Material certs and surface treatment certs included with every shipment.<\/div>\n      <\/div>\n    <\/div>\n    <div class=\"avitem\">\n      <div class=\"ico\">&#128260;<\/div>\n      <div>\n        <div class=\"at\">Same Process: Prototype to Production<\/div>\n        <div class=\"ad\">Process plan from your prototype applies to production batches. No re-qualification when you scale.<\/div>\n      <\/div>\n    <\/div>\n    <div class=\"avitem\">\n      <div class=\"ico\">&#9881;<\/div>\n      <div>\n        <div class=\"at\">3 \/ 4 \/ 5-Axis CNC + Turning<\/div>\n        <div class=\"ad\">Complex structural parts, shafts, housings, and transmission components. Metals and engineering plastics.<\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <!-- Cert tags -->\n  <div class=\"certs\">\n    <span class=\"cert hi\">ISO 9001:2015<\/span>\n    <span class=\"cert\">3\/4\/5-Axis Milling<\/span>\n    <span class=\"cert\">CNC Turning<\/span>\n    <span class=\"cert\">CMM Inspection<\/span>\n    <span class=\"cert\">Global Delivery<\/span>\n  <\/div>\n\n<\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-569fe65d e-con-full e-flex e-con e-child\" data-id=\"569fe65d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-273c17a0 elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"273c17a0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"New Form\" aria-label=\"New Form\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"787\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"273c17a0\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"PTFE Coating Services for CNC Machined Parts | HXCNC\" \/>\n\n\t\t\t\t\t\t\t<input type=\"hidden\" name=\"queried_id\" value=\"787\"\/>\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-above\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tName\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Name\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-field_12786b6 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_12786b6\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tCompany\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[field_12786b6]\" id=\"form-field-field_12786b6\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Company Name\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Email\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-select elementor-field-group elementor-column elementor-field-group-field_0c79fc0 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_0c79fc0\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tMaterial\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field elementor-select-wrapper remove-before \">\n\t\t\t<div class=\"select-caret-down-wrapper\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-caret-down\" viewBox=\"0 0 571.4 571.4\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M571 393Q571 407 561 418L311 668Q300 679 286 679T261 668L11 418Q0 407 0 393T11 368 36 357H536Q550 357 561 368T571 393Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t\t<select name=\"form_fields[field_0c79fc0]\" id=\"form-field-field_0c79fc0\" class=\"elementor-field-textual elementor-size-sm\">\n\t\t\t\t\t\t\t\t\t<option value=\"aluminium_6061_t6\">Aluminium 6061-T6<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"aluminium_7075_t6\">Aluminium 7075-T6<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"stainless_steel_304\">Stainless Steel 304<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"stainless_steel_316l\">Stainless Steel 316L<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"carbon_steel_4140\">Carbon Steel \/ 4140<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"titanium_ti_6al_4v\">Titanium Ti-6Al-4V<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"brass_c360\">Brass C360<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"copper\">Copper<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"peek\">PEEK<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"pom_acetal\">POM \/ Acetal<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"nylon_pa6_pa66\">Nylon PA6 \/ PA66<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"ptfe_teflon\">PTFE \/ Teflon<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"polycarbonate\">Polycarbonate<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"abs\">ABS<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"other_not_sure\">Other \/ Not sure<\/option>\n\t\t\t\t\t\t\t<\/select>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-select elementor-field-group elementor-column elementor-field-group-field_161b5ef elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_161b5ef\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tSurface Finish\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field elementor-select-wrapper remove-before \">\n\t\t\t<div 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value=\"passivation_ss\">Passivation (SS)<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"polishing_ra_requirement\">Polishing \/ Ra requirement<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"other_specify_below\">Other (specify below)<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"Select \">Select finish (optional)<\/option>\n\t\t\t\t\t\t\t<\/select>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tAdditional Requirements\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Target delivery date, critical dimensions, tolerance callouts, inspection requirements, application context...\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-upload elementor-field-group elementor-column elementor-field-group-field_0071b0f elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_0071b0f\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tFile Upload\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input type=\"file\" name=\"form_fields[field_0071b0f]\" id=\"form-field-field_0071b0f\" class=\"elementor-field elementor-size-sm  elementor-upload-field\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-arrow-alt-circle-right\" 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high-temperature service. All formulations PFOA-free. Request a QuoteView Specs \u2192 ISO 9001:2015FDA 21 CFRPFOA-Free PTFE Fluoropolymer Coating System 0.04 \u03bc Coefficient of Friction 260\u00b0C Continuous Service Temp [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-787","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>PTFE Coating Services for CNC Machined Parts | HXCNC<\/title>\n<meta name=\"description\" content=\"PTFE coating services for CNC machined parts requiring low friction and chemical resistance. 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