Spray &
Coating
Services

Electrostatic dry powder applied to an earthed metal part and oven-cured at 180–200°C to form a continuous polymer film. The premier coating method for steel and aluminium CNC parts requiring durable colour and corrosion protection. Layer 60–120μm in a single coat — thicker and tougher than wet paint at the same thickness, with better impact resistance, chip resistance, and UV stability. Finishes: gloss (60–90 GU), satin (25–60 GU), matt (<25 GU), texture (orange peel, wrinkle, hammer), and metallic. Colours: full RAL Classic/Design range and Pantone TPX matching. Zero VOC (no solvents). Corrosion resistance: 500–1000+ hours salt spray (ASTM B117) with pre-treatment (sandblast + zinc phosphate or chrome-free conversion). Limitations: requires oven cure — not suitable for heat-sensitive plastics or assemblies with rubber seals. Minimum film build ~40μm; very thin <30μm films are difficult to achieve consistently with powder.

Wet spray paint systems for CNC machined metal and plastic parts where powder coating is not appropriate — heat-sensitive substrates, complex OEM colour formulas, metallic or pearlescent effects, and very thin film requirements. Systems: 2K polyurethane topcoat (high chemical and abrasion resistance, gloss retention, service to 90°C); 2K epoxy primer + polyurethane topcoat (maximum adhesion and corrosion resistance); single-pack air-dry for prototypes and short-run parts. Layer build: primer 25–40μm + topcoat 40–80μm = total 65–120μm. Exact RAL Classic and Design, Pantone TPX, NCS, and OEM formula colour matching (Ford, GM, Toyota standard colour banks available). Metallic and pearlescent effects (aluminium flake, pearl mica) achievable. Textures: smooth, fine texture, coarse texture, hammertone. Plastic primer available for ABS, PC, PP, and GRP substrates.

Electrochemical primer deposition (cataphoretic e-coat) for steel and aluminium parts — the part is submerged in an aqueous paint bath and DC current deposits a uniform primer layer on all surfaces. Key advantage over spray primer: e-coat uniformly coats internal channels, weld joints, recesses, and complex geometry that spray equipment cannot reach consistently. Film thickness 15–25μm ±2μm on all surfaces regardless of geometry. Corrosion resistance as a primer: 300–500 hours salt spray alone; 1000+ hours when topcoated with powder. E-coat is the standard automotive primer for complex welded steel assemblies (body-in-white, sub-frames, brackets). For machined parts: hydraulic manifolds, complex fabrications, and any part where internal surface corrosion protection is required. E-coat is a functional primer — grey or black — and is topcoated with powder or wet paint for final appearance.

Fluoropolymer (PTFE, Teflon) coating for CNC machined metal parts requiring non-stick, low-friction, chemical resistance, or high-temperature performance. Applied as aqueous dispersion and sintered at 350–400°C. Coefficient of friction ≤0.1 — among the lowest of any solid surface. Service temperature: -200°C to +260°C continuous, +300°C peak. Chemical resistance: virtually all acids, alkalis, solvents, and oils. FDA food-safe approved. Layer 15–35μm (single coat); 35–75μm (dual-coat primer + topcoat — better adhesion and pinhole-free coverage for immersion applications). Colour options: standard grey, black, brown; custom colours available. Surface preparation is critical — sandblast Ra 3–6μm before coating for maximum adhesion. Applications: food processing moulds and components, pharmaceutical processing parts, valve bodies and stems, injection mould release surfaces, and chemical handling equipment.

Thermal spray and plasma spray ceramic coatings for high-temperature, wear-resistant, and electrically insulating applications. Aluminium oxide (Al₂O₃): hardness HV 1200–1600; electrical insulator (15–20 kV/mm dielectric strength); white/grey; service to 1600°C — specified for high-voltage electrical insulation and moderate wear resistance on rollers and guides. Chromium oxide (Cr₂O₃): hardness HV 1700–2000 (among hardest thermal spray coatings); dark green; service to 900°C in oxidising atmosphere — specified for extreme wear and corrosion in aggressive media (paper and textile machinery, pump components). Yttria-stabilised zirconia (YSZ) thermal barrier coating: service to 1200°C on superalloy substrate with metallic bond coat — turbine combustor liners, exhaust components. All ceramic coatings applied over a metallic NiCrAlY or NiAl bond coat for adhesion and thermal expansion compatibility. Post-spray grinding to dimensional tolerance available.