Metal Surface Treatment
Professional metal surface finishing for sheet metal and CNC machined parts. We provide anodizing, powder coating, electroplating and polishing to improve corrosion resistance, hardness and appearance.
Request A QuoteCustom Metal Finishing Solutions
Surface treatment is a critical process for metal components. It protects metal substrates from rust and oxidation, boosts surface hardness and wear resistance, and delivers consistent visual appearance for industrial parts.
Our finishing service works seamlessly with our sheet metal fabrication and CNC machining. We tailor surface treatments according to your working environment, functional requirements and color specifications.
Available Surface Finishing Processes
Powder Coating
Durable dry powder coating, rich color options, excellent anti-corrosion performance for enclosures and frames.
Anodizing
Aluminum anodizing for hard, insulating and decorative surface, different anodize colors available.
Electroplating
Zinc plating, nickel plating to improve rust resistance and surface conductivity for metal parts.
Brushing
Linear brushed texture on stainless steel and aluminum, matte metallic aesthetic for visible components.
Polishing
Mirror or satin polishing, remove surface scratches for high visual requirement metal parts.
Passivation
Stainless steel passivation to enhance corrosion resistance without changing part dimension.
Metals Suitable For Surface Treatment
Aluminum
Aluminum alloy widely used for anodizing, powder coating and brushing.
- Alloy 6061, 5052, 7075
- Best for anodizing & hard anodizing
Stainless Steel
Stainless steel can be passivated, brushed, mirror polished.
- 304 / 316 stainless steel
- Passivation improves salt spray resistance
Carbon Steel & Cold Rolled Steel
Mainly for powder coating and zinc plating for anti-rust protection.
- Low carbon steel, SPCC
- Zinc plating + powder coating for harsh environment
Finishing Inspection & Testing
Coating Thickness Test
Measure coating / anodize film thickness to meet your specification and guarantee consistent protection.
Adhesion Test
Cross-cut adhesion test to confirm coating will not peel or fall off during usage.
Salt Spray Test
Salt spray testing to verify anti-corrosion performance for outdoor and marine application parts.
Industries We Serve
Electronics Enclosures
Surface finishing for electrical cabinets, chassis and instrument housings.
Industrial Automation
Anti-corrosion coating for automation equipment frames and protective brackets.
Aerospace
High spec anodizing and passivation for precision aerospace metal components.
Marine Equipment
Heavy-duty surface treatment for marine metal parts resisting salt water corrosion.
Surface Treatment Project Gallery
Various Finished Metal Parts
Check our finished metal components with different surface treatments. We can match your required color, film thickness and corrosion resistance standard.
Send your drawings and finish requirements, we will recommend the most cost-effective surface treatment solution for your project.
Frequently Asked Questions
What is the difference between anodizing and powder coating?
Anodizing forms a protective oxide layer on aluminum. Powder coating is a paint layer, available in many colors and suitable for multiple metals.
Can you match custom RAL colors for powder coating?
Yes, we support most RAL color codes for powder coating, small color difference is acceptable.
What salt spray hours can you achieve?
Depends on finishing type. Powder coating can reach 500~1000 hours salt spray test upon request.
Do you provide surface treatment for only raw metal parts?
We can do finishing for parts made by our factory, or you can send your finished metal parts for surface treatment service.
Request Surface Treatment Quotation
Share your metal part drawings and finishing requirements. Our team will recommend suitable surface treatment and send you an accurate quote quickly.
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