Surface Treatment Services for OEM Metal Parts
Improve corrosion resistance, appearance and product durability with OEM surface finishing solutions for CNC machined parts, metal stampings and fabricated components.
Surface Finishing For Functional, Cosmetic And Environmental Requirements
Surface treatment improves the appearance, corrosion resistance, wear resistance, cleanliness and durability of metal parts. For OEM metal parts, the right surface finish helps parts meet functional, cosmetic and environmental requirements.
At Feiyu, surface treatment is integrated with CNC machining, metal stamping, sheet metal fabrication, welding and assembly to provide complete custom metal parts manufacturing solutions.
Surface Treatment Services We Support
Organized by finishing function so buyers can compare texture preparation, aluminum finishing, protective coating, plating, stainless steel appearance and product identification.
Mechanical Surface Finishes
Mechanical finishes prepare the surface, remove burrs, improve texture and support coating adhesion before final treatment.
Sand Blasting
Used for surface cleaning, matte texture, burr removal and preparation before anodizing, painting or powder coating.
Glass Bead Blasting
Used for a smoother satin finish on aluminum and stainless steel parts.
Brushing
Used for linear decorative finishes on stainless steel and aluminum panels, covers and visible components.
Polishing
Used for smooth or mirror-like surfaces on stainless steel, aluminum and decorative metal parts.
Anodizing Services
Anodizing is commonly selected for aluminum OEM parts requiring corrosion resistance, wear performance and stable cosmetic appearance.
Clear Anodizing
Natural aluminum finish with improved corrosion resistance.
Black Anodizing
Common OEM finish for aluminum housings, brackets, heat sinks and industrial components.
Color Anodizing
Used when aluminum parts require custom colors such as blue, red, gold or other project-specific colors.
Hard Anodizing
Used for aluminum parts requiring higher hardness, wear resistance and industrial durability.
Coating Services
Coatings protect metal parts used in outdoor, industrial and consumer-facing applications where color and durability both matter.
Powder Coating
Durable coating for steel and aluminum parts used in outdoor, industrial and heavy-duty applications.
Wet Painting
Custom color coating for metal covers, housings, panels and consumer-facing products.
Electrophoretic Coating / E-Coating
Uniform anti-corrosion coating for steel parts, automotive brackets and hardware components.
Plating Services
Plating is often used for carbon steel, brass, copper and small hardware parts requiring corrosion protection or decorative appearance.
Zinc Plating
Common anti-rust finish for carbon steel parts, fasteners, stamped parts and hardware. Options include clear zinc, yellow zinc and black zinc.
Zinc-Nickel Alloy Plating
Higher corrosion-resistant plating for steel parts, automotive hardware and OEM components requiring stronger salt spray performance than standard zinc plating.
Nickel Plating
Used for corrosion resistance, decorative appearance and functional surface protection.
Chrome Plating
Used for decorative chrome appearance or hard chrome wear-resistant applications.
Stainless Steel Surface Finishes
Stainless steel finishes improve visible appearance, cleanliness and corrosion resistance for equipment, medical and food-related components.
Passivation
Improves corrosion resistance of stainless steel by removing free iron from the surface.
Brushed Stainless Steel
Decorative linear finish for visible stainless steel panels and covers.
Polished Stainless Steel
Smooth or mirror finish for decorative, medical, food equipment or visible components.
Identification & Marking
Marking services support part identification, brand visibility, traceability and assembly control for OEM programs.
Laser Marking
Used for logos, serial numbers, part numbers, QR codes and traceability.
Engraving
Permanent identification for metal parts, nameplates and functional markings.
Surface Treatment Comparison Table
Use this table as a starting point for material selection, environmental requirements, appearance targets and RFQ notes.
| Process | Suitable Materials | Appearance | Corrosion Resistance | Wear Resistance | Typical Applications |
|---|---|---|---|---|---|
| Sand Blasting | Aluminum, Steel, Stainless Steel | Matte | Low | Low | CNC parts, castings, welded parts |
| Glass Bead Blasting | Aluminum, Stainless Steel | Satin | Low | Low | Cosmetic aluminum and stainless parts |
| Brushing | Stainless Steel, Aluminum | Linear decorative | Low | Low | Panels, covers, visible parts |
| Polishing | Stainless Steel, Aluminum | Smooth / mirror | Medium | Low | Medical, food equipment, decorative parts |
| Clear Anodizing | Aluminum | Natural aluminum | High | Medium | Housings, brackets, heat sinks |
| Black Anodizing | Aluminum | Black decorative | High | Medium | Electronics housings, CNC components |
| Hard Anodizing | Aluminum | Dark / functional | High | High | Wear-resistant industrial parts |
| Powder Coating | Steel, Aluminum | Matte / gloss / texture | Very High | High | Outdoor equipment, frames, enclosures |
| Wet Painting | Steel, Aluminum | Custom colors | Medium | Medium | Covers, panels, consumer products |
| E-Coating | Steel | Uniform black | High | Medium | Automotive brackets, hardware |
| Zinc Plating | Carbon Steel | Silver / yellow / black | Medium | Medium | Fasteners, stamped parts, brackets |
| Zinc-Nickel Alloy Plating | Carbon Steel, Alloy Steel | Silver / black | Very High | Medium | Automotive hardware, brackets, fasteners |
| Nickel Plating | Steel, Brass, Copper | Bright / satin | High | Medium | Precision parts, decorative parts |
| Chrome Plating | Steel | Bright chrome | High | High | Decorative or wear-resistant parts |
| Passivation | Stainless Steel | Natural stainless | High | Low | Medical, food equipment, stainless components |
| Laser Marking | Aluminum, Steel, Stainless Steel | Permanent mark | N/A | N/A | Logos, serial numbers, QR codes |
How To Choose The Right Surface Finish
Not sure which finish is suitable? Send us your drawing, material and application environment. Our engineering team can recommend the most cost-effective surface treatment option.
| Application | Recommended Finish | Reason |
|---|---|---|
| Outdoor equipment | Powder coating / E-coating | Corrosion resistance and durability |
| Aluminum housing | Anodizing | Appearance and oxidation resistance |
| Automotive brackets | E-coating / Powder coating | Salt spray performance |
| Stainless steel covers | Brushing / Passivation | Appearance and surface protection |
| Industrial nameplates | Laser marking | Traceability and permanent identification |
| Consumer electronics | Anodizing / Brushing | Appearance and wear resistance |
Powder Coating Vs Anodizing
Need help choosing between powder coating and anodizing? Upload your drawing for engineering review.
| Feature | Powder Coating | Anodizing |
|---|---|---|
| Suitable material | Steel, aluminum | Aluminum |
| Color options | Very wide | Medium |
| Corrosion resistance | Excellent | Excellent |
| Surface appearance | Coated finish | Metallic finish |
| Outdoor use | Excellent | Good to excellent |
| Cost | Usually lower | Usually higher |
| Best for | Steel brackets, frames, enclosures | Aluminum housings, panels, machined parts |
Surface Treatment By Material
Material choice determines which finishes are practical, durable and cost-efficient for production.
Surface Treatment for Aluminum Parts
Aluminum parts are often finished with anodizing, hard anodizing, powder coating or blasting depending on cosmetic, corrosion resistance and wear resistance requirements.
- Sand blasting
- Glass bead blasting
- Clear anodizing
- Black anodizing
- Color anodizing
- Hard anodizing
- Powder coating
- Brushing
- Polishing
- Laser marking
Surface Treatment for Carbon Steel Parts
Carbon steel parts usually require coating or plating to improve corrosion resistance, especially for outdoor, automotive and industrial applications.
- Powder coating
- Wet painting
- E-coating
- Zinc plating
- Zinc-nickel alloy plating
- Nickel plating
- Chrome plating
- Black oxide if required
Surface Treatment for Stainless Steel Parts
Stainless steel parts are commonly passivated, brushed or polished to improve corrosion resistance, cleanliness and cosmetic appearance.
- Passivation
- Brushing
- Polishing
- Glass bead blasting
- Laser marking
How To Choose The Right Surface Treatment
When selecting a surface treatment for OEM metal parts, buyers should consider functional performance, cosmetic standards and downstream assembly requirements before production begins.
Surface Treatment Specifications We Can Support
Feiyu can review finish appearance, functional performance and inspection requirements before production.
Appearance Options
- Matte finish
- Satin finish
- Gloss finish
- Textured finish
- Brushed finish
- Polished finish
- Clear finish
- Black finish
- Custom color finish
Functional Requirements
- Corrosion resistance
- Wear resistance
- Outdoor durability
- Electrical insulation
- Surface cleanliness
- Product identification
- Cosmetic consistency
Inspection Items
- Scratches
- Color difference
- Coating peeling
- Coating thickness
- Exposed metal
- Burrs
- Masking accuracy
- Thread protection
- Packaging protection
Typical Applications
Surface treatment is commonly used where appearance, durability, traceability and assembly readiness affect OEM product performance.
Project Examples
Typical combinations of manufacturing process and finishing route for OEM metal parts.
Aluminum CNC Housing
- Process
- CNC machining + sand blasting + black anodizing
- Application
- Electronic or industrial equipment housing
- Benefit
- Improved appearance, corrosion resistance and surface consistency.
Steel Mounting Bracket
- Process
- Laser cutting + bending + welding + powder coating
- Application
- Outdoor equipment or automotive mounting structure
- Benefit
- Durable outdoor coating and improved corrosion resistance.
Stainless Steel Control Panel
- Process
- Laser cutting + brushing + laser marking
- Application
- Visible control panel or equipment cover
- Benefit
- Clean appearance and permanent product identification.
Stamped Steel Hardware
- Process
- Metal stamping + zinc or zinc-nickel alloy plating
- Application
- Fasteners, clips, brackets or hardware components
- Benefit
- Cost-effective corrosion protection for batch production.
Quality Control For Surface-Treated Parts
Surface treatment quality is controlled together with dimensional inspection. Before shipment, Feiyu checks treated parts for appearance, coating quality, color consistency, masking areas, threads and packaging protection.
- Visual appearance inspection
- Color consistency check
- Coating thickness check when required
- Adhesion test when required
- Salt spray test when required
- Masking and thread protection check
- Final packaging protection check
Related Capabilities
Combine surface finishing with upstream manufacturing and inspection-controlled delivery.
FAQ
Answers for OEM buyers and engineers preparing a surface treatment RFQ.
What surface treatments do you offer for aluminum parts?+
We support sand blasting, glass bead blasting, clear anodizing, black anodizing, color anodizing, hard anodizing, powder coating, brushing, polishing and laser marking for aluminum parts.
What surface treatment is best for outdoor metal parts?+
Powder coating, anodizing, hard anodizing, e-coating and zinc plating are commonly used for outdoor metal parts depending on material, environment and corrosion resistance requirements.
Do you support zinc-nickel alloy plating?+
Yes. Zinc-nickel alloy plating can be supported for selected steel parts, automotive hardware, fasteners and OEM components requiring higher corrosion resistance or stronger salt spray performance than standard zinc plating.
What is the difference between anodizing and powder coating?+
Anodizing is mainly used for aluminum parts and forms a protective oxide layer on the surface. Powder coating applies a thicker protective coating and is commonly used for steel and aluminum parts.
Can you provide custom colors?+
Yes. Custom colors can be supported for anodizing, powder coating and wet painting depending on project requirements.
Can you support salt spray testing?+
Yes. Salt spray testing can be arranged when corrosion resistance requirements are specified by the customer.
Can surface treatment be combined with CNC machining, stamping and welding?+
Yes. Feiyu provides surface treatment together with CNC machining, metal stamping, sheet metal fabrication, welding and assembly as an integrated OEM manufacturing solution.
What information is needed for a surface treatment quote?+
Please provide drawings, material, surface finish requirement, color, application environment, quantity and any testing requirements such as salt spray or coating thickness.
Need Surface Treatment For Your OEM Metal Parts?
Send us your drawings, material requirements and surface finish specifications. Feiyu will review your project and recommend a suitable manufacturing and finishing solution.