Metal finishing shops with in-house black oxide in California

Black oxide is a thin conversion coating on steel that gives a black finish with mild corrosion resistance and no dimensional change — applied in the shop.

State the material and the spec (MIL-DTL-13924), the oil or wax seal you want, and whether the finish must be uniform on a visible part.

The shops — 3

Each shop's verified black oxide fact is quoted from its own website; open the shop for every other capability on record.

• Accurate Plating Co

  Los Angeles, CABlack oxide (in-house)

  Black oxide services add a sleek matte black finish while providing reliable surface protection. source

• Black Oxide Industries, Inc.

  Anaheim, CABlack oxide (in-house)

  [e-mail withheld] source

• Santa Clara Plating Co., Inc.

  Santa Clara, CABlack oxide (in-house)

  Our black oxide is guaranteed black and meets optical standards. source

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