Surface Finishes Library

Choose finishes for corrosion resistance, wear, cosmetics, and fit

Finishes Should Match Function and Risk

Surface finish decisions affect appearance, corrosion resistance, wear life, and dimensional fit. Use this guide to pick the right finish and understand which materials it works best with.

Materials Library

Not sure which base material to use? Start with the materials library and then come back to select the best finish.

View Materials

Common Finishes

Anodize (Aluminum)

Hard, corrosion-resistant oxide layer. Great for aluminum housings and brackets.

  • Best for: Aluminum
  • Pros: corrosion resistance, cosmetics, wear
  • Cons: can affect tight fits; color variation possible
Compatible materials

Passivation (Stainless)

Chemical treatment to improve corrosion resistance on stainless steels.

  • Best for: Stainless steel
  • Pros: corrosion resistance, clean surface
  • Cons: does not hide machining marks
Compatible materials

Bead Blast

Uniform matte cosmetic finish for metals and some plastics.

  • Best for: Aluminum, stainless, some plastics
  • Pros: consistent appearance, hides minor marks
  • Cons: not a corrosion protection finish on its own
See materials

Plating

Protective and functional coatings (varies by requirement).

  • Best for: many metals
  • Pros: corrosion resistance, conductivity, wear
  • Cons: thickness can affect tight fits
See materials

Powder Coat / Paint

Durable cosmetic finish for enclosures and brackets.

  • Best for: many metals
  • Pros: strong cosmetics, good protection
  • Cons: thickness can change dimensions and fits
See materials

Electropolish

Smooth, clean finish often used for stainless components.

  • Best for: stainless steel
  • Pros: surface smoothness, cleanability
  • Cons: not ideal for all geometries
Compatible materials

Need Finish Recommendations?

Send your part files and your functional/cosmetic requirements. We’ll recommend a finish and provide a quote.

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