Surface Finishing & Anodizing Services in Singapore

Why Integrated Finishing Matters

When machine shops outsource parts to standalone platers without shared engineering controls, tight-tolerance features are frequently scrapped from uncompensated coating buildup or chemical over-etching. By managing finishing under the same ISO 9001 quality system, Shine prevents hand-off defects:

• Pre-Plating CAM Offsets: Critical bores, journal diameters, and threads are programmed with precise micron allowances so finished parts measure exactly to print after coating buildup (such as 25–50 µm Type III hardcoat or electroless nickel).
• Custom Precision Masking: Silicone plugs, custom caps, and chemical-resistant tapes protect ground bearing journals, O-ring sealing faces, and internal threads from bath exposure.
• Single-Source Accountability: One purchase order and one engineering team own both machining dimensions and coating quality, eliminating disputes between shop and plater.
• Thickness & Quality Verification: Non-destructive eddy-current and magnetic thickness audits, adhesion cross-hatch checks, and Certificate of Conformance (CoC) documentation with every batch.

Anodizing Services for CNC Machined Aluminium

Anodizing is the most requested finish on our machined aluminium, and the one most susceptible to tolerance loss when machining and plating are handled separately. Shine quotes machining and anodizing together, cuts coating allowances into critical features, masks datum faces and grounding pads, and verifies thickness on return:

• Type II sulfuric anodizing (MIL-A-8625): Clear, black, blue, red, gold and green; typical build 5–25 µm for corrosion resistance and cosmetic finish on 6061 and 7075 housings, plates and brackets.
• Type III hardcoat anodizing (MIL-A-8625 Class 1 & 2): 25–50 µm wear-resistant oxide for sliding surfaces, semiconductor chamber parts and wear faces; dimensional growth machined in at CAM.
• Optical black anodizing: Low-reflectance matte black for lens housings, laser cavities and stray-light control, usually paired with bead blasting.
• Masking and selective anodizing: Plugged threads, masked datum faces and bare grounding pads where conductivity must be retained.

Supported Surface Treatment Processes

• Anodizing (Type II & Type III Hardcoat): Sulfuric acid anodizing for aluminum with decorative colors (clear, black, red, blue, gold) and MIL-A-8625 Type III hardcoat (up to 50 µm) for extreme abrasive wear resistance.
• Chemical Conversion Coating (Alodine / Chem Film): MIL-DTL-5541 chromate and RoHS-compliant trivalent passivation providing corrosion barrier protection while maintaining electrical conductivity and RF shielding.
• Electroless Nickel & Zinc Plating: High-phosphorus and medium-phosphorus electroless nickel (ASTM B733) for uniform, blind-hole corrosion and wear protection across steel, stainless steel, and copper alloys.
• Electropolishing & Passivation: ASTM A967 and ASTM A380 compliant passivation and microscopic burr removal for surgical stainless steels (316L, 17-4 PH) and semiconductor fluid delivery manifolds.
• Abrasive Media Blasting & Brushing: Controlled bead blasting (glass, ceramic, aluminum oxide) and linear grain brushing for uniform matte cosmetic surfaces and glare reduction.
• Black Oxide & Phosphate Coatings: Anti-galling and corrosion-inhibiting chemical conversions for carbon steels, alloy steels, and tooling fixtures.

Finishing Specifications & Process Comparison

Review technical attributes, applicable substrates, cosmetic standards, and dimensional tolerance allowances for our standard finishing offerings:

Industry-Specific Finishing Solutions

• Semiconductor Equipment: High-purity Type III hardcoat anodizing, high-phosphorus electroless nickel, and electropolishing resistant to harsh plasma etching chemistry and outgassing.
• Medical Devices: Passivated (ASTM A967) and electropolished stainless steel and titanium components for biocompatible cleanability and autoclave sterilization resistance.
• Optics & Photonics: Ultra-matte non-reflective optical black anodizing and bead-blasted light-absorbing surfaces for laser cavities and lens housings.
• Automotive & EV: Wear-resistant hardcoat anodizing, corrosion-protective coatings, and electrical insulation treatments with complete PPAP documentation.
• Energy & Marine: Heavy-duty nickel plating and corrosion-resistant conversions for harsh offshore environments.