From the blackest blacks and across the color spectrum, Hubbard-Hall has a complete line of metal coloring products for industry. Whether you’re looking for a custom color or an antique finish, our expert team brings 170 years of problem-solving savvy to your challenge. Using our chemistry, we’re able to create a wide range of colors through chemical reactions. These products are not a decorative coating but a true conversion of the metal surface that won’t peel, chip, or flake while contributing little or no dimensional change.
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Hot Black Oxide
Hubbard-Hall’s Black-Magic® line of hot black-oxide products is frequently used to produce 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.
Hot Black Oxide
| Recommended Operating Temperature | Concentration | Powder | Mil C 13924 Compliant | Mil C 46110 Compliant | |
|---|---|---|---|---|---|
| Black-Magic Infusion | 282°F | Use as received | x | x | |
| Black-Magic Infusion Powder | 282°F | 6 lb. in one (1) gal. tank water | x | x | |
| Liquid Black-Magic ABM | 288°F | Use as received |
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 offers 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.
Room Temperature Blackening
| pH | Darkest Black Formulation | Machined Steel Application | Cold Rolled Steel Application | RoHS Compliant | |
|---|---|---|---|---|---|
| Black-Magic-RT S25 | 1.9 | x | x | ||
| Black-Magic-RT S30 | 1.9 | x | x | ||
| Black-Magic-RT Z40 | 3.5 | x |
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 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.
Antiquing Solutions
| pH | Concentration | US 10B Color | Hand Application | Relieving/Dip Burnish | |
|---|---|---|---|---|---|
| Mi-Tique 1791 | 1.5-2 | 17% | x | x | x |
| Mi-Tique 1792 | <2 | 20-30% | x | x | x |
| ENE Brown Dip | <1 | 25% |