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Chemical Applications

Metal Coloring: Black Oxide and Antiquing for Industry

Black, brown and green! Hubbard-Hall offers the most comprehensive line of metal coloring products for industry. Produce a stable black with black oxide or antiqued finish on most metals and alloys. These products are not paints, but a true conversion of the metal surface that will not peel, chip or flake off while contributing little to no dimensional change.

Three Lines of Chemistries Available


Hot Black Oxide

Hubbard-Hall’s Black-Magic™ line of hot black oxide products is frequently used to product a true durable black oxide conversion coating on steel, stainless steel and copper alloys. These essentially dimensionless coatings create very decorative, highly durable black finishes that leave an absorbing oxide layer for oils and waxes that will provide for enhanced corrosion protection.

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Room Temperature Blackening

Hubbard-Hall’s series of room temperature Black-Magic™ products use a reactive chemistry to form an appealing black finish on steel, aluminum and zinc alloys. These essentially dimensionless coatings create a very decorative, durable black finish that leave an absorbing oxide layer for oils and waxes that will provide for enhanced corrosion protection. The room temperature process offer energy savings and convenience over hot black oxide while sacrificing some corrosion resistance and durability when compared to the finish formed by a hot black oxide.

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Antiquing Solutions

The Mi-Tique® antiquing and metal coloring products are used to give an aged appearance to decorative hardware, bath fixtures, some jewelry and other decorative accessories. Through chemical conversion, a variety of metals including copper, brass, bronze, nickel, silver and pewter can be oxidized to produce black, brown and green patinas. By varying time and concentration, users can achieve multiple shades of color from light brown to the blackest of black. Tumbling, rubbing or relieving the surface to highlight lettering or create contrast on designs, can create additional effects. See Hubbard-Hall’s Mi-Tique® 1792 antiquing solution in action.

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