Surface Treatment
Comprehensive Surface Finishing Solutions
To ensure every precision component achieves its required chemical, physical, and aesthetic performance, Holm Machinery Asia offers an extensive range of metal plating, anodizing, passivating, and polishing services.
From extreme corrosion resistance in marine and medical environments to wear-resistant coatings for high-friction assemblies, all processes adhere to international standards (MIL-SPEC, ASTM, ISO).
Available Finishing Processes
Anodizing & Hard Anodizing
An electrochemical process creating a uniform, stable aluminium oxide layer. Provides superior wear and corrosion resistance, electrical insulation, and attractive decorative dyed or matte finishes.
Hard Chrome Plating
Electrolytic deposition of chromium offering exceptional surface hardness and low friction coefficient. Available in thin plating for high-wear resistance and thick plating for precision dimension restoration.
Clear Chromate (Chemical Conversion)
Chemical surface treatment enhancing atmospheric corrosion resistance while preserving excellent electrical conductivity, ideal for aerospace and electronics enclosures.
Black Oxide Plating (Blackening)
Chemical conversion coating producing an attractive matte-black magnetite layer that inhibits rust without altering the critical dimensional tolerances of precision machined components.
Electroless Nickel Plating
Auto-catalytic chemical plating providing completely uniform thickness even inside complex internal cavities, deep blind holes, and threads, with exceptional wear and corrosion resistance.
Electropolishing & Chemical Polishing
Advanced micro-polishing removing microscopic burrs, peaks, and contaminants, creating an ultra-smooth, high-gloss surface meeting sanitary requirements for medical and food equipment.
Stainless Steel Passivation
Post-machining chemical treatment eliminating free iron particles and inducing a continuous protective chromium oxide film to maximize resistance against corrosion and oxidation.