Industrial & Custom Surface Finishing Services
Our Surface Finishing Services
Anodizing (Type II & III) — Surface Finishing Services
Color & Hardcoat for corrosion & wear resistance.
Powder Coating & Painting
Durable industrial finishes for extreme environments.
Electroplating
Zinc, Nickel, Chrome for wear resistance & conductivity.
Bead Blasting & Brushing
Matte and textured cosmetics to hide machining marks.
Polishing & Electropolishing
Mirror finishes & precise Ra reduction.
Passivation & Black Oxide
Rust prevention for steel components.
Precision Ra Control in Surface Finishing Services
Our surface finishing services help control surface roughness, appearance, and functional performance according to material, process, and end-use requirements.
Surface Roughness Control
Surface quality can range from standard as-machined finishes to fine polished surfaces. Ra requirements should be defined according to function rather than applied equally to every surface.
Why Ra Matters
Surface roughness influences sealing, friction, wear, coating adhesion, appearance, and component life. Functional surfaces often require tighter control than cosmetic or non-critical areas.
Finishing Process Selection
Depending on material and application, suitable processes may include polishing, electropolishing, bead blasting, anodizing, plating, passivation, or other secondary treatments.
Material Compatibility
Aluminum (6061 / 7075 / 5052)
Lightweight, excellent machinability — broadest finish compatibility of any base material.
Note: Aluminum alloys with >2% copper content (e.g. 2024) may have reduced anodizing quality. Consult our engineers for 7075-T6 Type III hardcoat requirements.
Stainless Steel (304 / 316 / 17-4 PH)
High corrosion resistance in raw form. Finishing focuses on aesthetics and enhanced resistance.
Note: 316L is recommended for marine / chloride environments. Passivation does not apply to 400-series ferritic grades without special process adjustment.
Carbon Steel (1018 / 1045 / 4140)
Prone to oxidation — surface treatment is mandatory. Broad coating compatibility.
Note: High-strength steels (>1100 MPa / 36 HRC) require hydrogen embrittlement bake-out post-plating per ASTM F519. Confirm grade before ordering zinc plating.
Copper & Brass (C101 / C260 / C360)
Excellent electrical / thermal conductivity. Finishes selected to preserve or enhance these properties.
Note: Free-machining brass (C360) contains lead — surface treatments on food-contact or medical parts must use lead-free certified process lines. Declare application at order time.
Quality Control for Surface Finishing Services
Coating Thickness
XRF and eddy current tools for exact micron measurement on all coatings.
Salt Spray Testing
Rigorous testing to ASTM B117 for ultimate rust prevention assurance.
Color & Gloss Check
Precise matching to custom RAL/Pantone standards with spectrophotometer.
