Finishing and coating, specified with the part — not bolted on afterward.

Anodizing, PVD, chrome and decorative electrolytic finishes, black oxide, chromate and electroless nickel plating, sandblasting, brushing, silk-screening, laser marking, powder coating and liquid paint in matte, satin, gloss or textured — spec'd against the same drawing as the part, so color and coverage are locked in before production.

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Quick definition

Finishing and coating covers everything that happens to a part after it's machined, molded, cut or bent — a decorative or protective layer (anodizing, PVD, chrome, paint), a chemical conversion or plated coating (black oxide, chromate, electroless nickel), a surface texture (sandblasting, brushing, polishing), or a permanent mark (laser engraving, silk-screening). It's rarely a standalone order: it's specified alongside the part's process and material so the finish gets priced and scheduled correctly the first time, not guessed at afterward.

Finish familiesSpecified with the part
Anodizing
Electrolytic tones
Powder & paint
Texture
Color, texture and coverage locked in at quoting — not matched to a swatch afterward.
10+ finish familiesPVD, anodizing, chrome, black oxide, chromate, electroless nickel, blasting, brushing, powder coat and paint
4 surface texturesmatte, satin, gloss or textured — on both powder coat and liquid paint
Specified with the partcolor, texture and coverage locked in at quoting, not chosen after the part already exists
One quote, one invoicefinish priced and scheduled alongside cutting, machining or molding, not as an afterthought
Anodized aluminum parts in several colors, showing a consistent finish
Anodized to a specified color and finish — locked in at quoting, not matched to a swatch after the part is made.
Part with a brushed gun-metal decorative electrolytic finish
A decorative electrolytic tone — gun metal, brushed gold, satin copper — specified the same way as any other finish.

Specified once, not discovered twice

Finishing decided after the part is cut is finishing done twice.

Pick a finish after the part's already machined or molded and you inherit whatever tolerance, masking and prep it needed — a chrome-ready surface, a paint-ready radius, a laser-mark-safe wall thickness. Specify it with your engineer before the first cut and those calls get made once, on the drawing, instead of getting discovered as a rework after the part already exists.

Finish as an afterthought
  • Finish chosen after the part is already machined, molded or cut
  • Masking, surface prep and dimensional allowance discovered as a rework, not planned for
  • A separate vendor, a separate lead time, and a color that doesn't quite match the swatch
  • No one to call if the coating doesn't hold up on the actual part
The OperGo way
  • Finish specified with the part — masking, prep and dimensional allowance planned into the drawing from day one
  • One quote, one lead time, for the part and everything applied to it
  • Color, texture and coverage confirmed before the full run, not guessed at after
  • The same engineer who quoted the part owns the finish on it

What we run

Protection, color, texture or a mark — often all four.

Anodizing & PVD

Anodizing for color or hard-coat wear resistance on aluminum; PVD for a durable, decorative metallic finish other coatings can't match.

Chrome & decorative electrolytic finishes

Chrome plus electrolytic bath tones — old gold, brushed gold, gun metal, brushed copper, satin copper and other sector-standard finishes.

Conversion coatings & plating

Black oxide for steel and copper alloys, chromate conversion (chem-film) for aluminum, and electroless nickel plating for a uniform, corrosion-resistant layer that follows complex geometry evenly.

Powder coat & liquid paint

Matte, satin, gloss or textured, in either coating — specified by color and finish under the same quote as the part.

Sandblasting, brushing & polishing

Mechanical surface textures — a uniform matte blast, a directional brushed grain, or a mirror / hygienic polish — worked into the part itself.

Silk-screening & laser marking

A printed logo or scale, or a permanent engraved mark — applied to the part itself, not a sticker on it.

The spec sheet

Every finish, at a glance.

Finishes · Finishing & coatingin-house + partners
Metallized finishesPVD and chrome for a durable decorative metallic surface; anodizing for color or hard-coat wear resistance, aluminum only.
Electrolytic decorative tonesOld gold, brushed gold, gun metal, brushed copper, satin copper and other sector-standard electrolytic bath finishes.
Conversion & platingBlack oxide on steel and copper alloys, chromate conversion (chem-film) on aluminum, and electroless nickel plating for a uniform corrosion-resistant layer, even on complex internal geometry.
Texture & markingSandblasting for a uniform matte surface, brushing for a directional grain, silk-screening for printed graphics, laser marking for a permanent engraved logo or serial number.
CoatingsPowder coating and liquid paint, each specified in matte, satin, gloss or textured.
PolishingMechanical or electro-polishing, for a mirror finish or a hygienic surface.

Full range of materials and finishes on Materials & finishes →

Picking a finish

The right finish depends on what it has to survive.

Anodizing vs. powder coating

Anodizing converts the aluminum's own surface into a hard, thin oxide layer — wear-resistant but aluminum-only, with a narrower color range. Powder coating adds a thicker layer, works on more materials, and comes in effectively any color.

PVD / chrome vs. paint

PVD and chrome give a metallic, reflective look paint can't fake, at a higher cost per part. Paint is cheaper and available in effectively any color, at the tradeoff of a less durable, less metallic surface.

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Send the part and an engineer matches finish to function — durability, look or cost — instead of picking blind from a swatch book.

Finishing & coating, answered

What's the difference between anodizing and powder coating?

Anodizing converts the surface of the aluminum itself into a hard oxide layer through an electrochemical process — thin, wear-resistant, and aluminum-only. Powder coating sprays and bakes on an added layer of colored polymer, works on steel and aluminum alike, and comes in a wider range of colors and textures, at the cost of being less abrasion-resistant than anodizing.

What are the electrolytic decorative finishes — old gold, gun metal, brushed copper?

They're electrolytic bath finishes, similar in process to chrome plating, that deposit a thin decorative metallic layer in a specific tone — old gold, brushed gold, gun metal, brushed copper, satin copper and other sector-standard options. They're specified like any other finish, against the part's drawing, at quoting.

Do you do black oxide, chromate (chem-film) or electroless nickel plating?

Yes. Black oxide gives steel and copper alloys corrosion resistance and a dark matte look; chromate conversion (chem-film / Alodine) protects aluminum while keeping it electrically conductive and paint-ready; electroless nickel plating lays down a uniform, corrosion-resistant nickel layer that coats even complex internal geometry evenly, on steel, aluminum or stainless. Each is specified against the part's drawing at quoting, like any other finish.

Can you laser-mark a logo or serial number onto a part?

Yes — laser marking engraves a permanent mark directly into the surface, unlike a printed label or a sticker. It's commonly specified alongside another finish (marking after anodizing or powder coating, for example) so the mark survives whatever the part goes through afterward.

What textures are available on powder coat and paint?

Matte, satin, gloss or textured, on either coating — specified by finish and color under the same quote as the part itself.

Does every finish work on every material?

No — anodizing is aluminum-only, since it converts the aluminum's own surface rather than adding a layer. PVD, chrome, powder coat, paint and sandblasting work across a broader range of metals and plastics. Your engineer flags the fit at quoting, not after the part's already been made.

Can finishing be part of the same order as machining or molding?

Yes — that's the default, not an add-on. Specifying the finish with the part at quoting means masking, surface prep and dimensional allowance get planned into the drawing from the start, instead of discovered as a rework after the part already exists.

What if my finish needs a minimum volume to make sense?

Some of these finishes are only cost-effective as part of a fully integrated production run rather than a one-off prototype — your engineer will say so at quoting, and suggest the closest option that works at your quantity.

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Every metal, plastic and finish available across all processes.

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The masking and surface-prep calls that decide finishing time and rework.

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CNC machining, sheet metal, injection molding and everything else we run.

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