Surface finishes for functional parts

Surface finishing can improve corrosion resistance, wear performance, appearance, cleanliness, and identification. The correct process depends on the material, part geometry, tolerance, and working environment.

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Common finishing options

We confirm finish compatibility and any effect on dimensions before production. The final requirement should be stated on the drawing or purchase order.

As machined

Deburred parts with the natural surface and visible machining marks. Suitable when appearance or added protection is not required.

Anodizing

A corrosion-resistant finish for aluminum parts. Clear, black, colored, and hard-anodized options can be reviewed for suitable projects.

Powder coating

A durable colored coating commonly used on sheet metal enclosures, brackets, frames, and fabricated assemblies.

Plating

Nickel, zinc, and other plating processes can add corrosion protection, surface hardness, or a controlled technical appearance.

Passivation and black oxide

Passivation supports stainless-steel corrosion resistance, while black oxide provides a thin dark conversion finish for suitable steel parts.

Brushing and polishing

Mechanical finishing can create a directional grain, smoother appearance, or reflective surface on appropriate metal components.

What to specify on the drawing

Clear finish instructions help us quote the correct process and protect critical features during production.

Finish and color: State the required process, color, gloss, texture, or appearance standard.
Masked areas: Identify threads, holes, sealing faces, grounding points, and surfaces that must remain untreated.
Critical dimensions: Mark dimensions that must be controlled before or after coating or surface treatment.
Cosmetic requirements: Define acceptable surface condition, grain direction, marking, and visible-face expectations where needed.

Send the drawing with the finish requirement.

We will review the material, geometry, tolerances, masking, appearance, and production quantity together.

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