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Room-temperature blackening solutions for steel, stainless, and brass

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I am interested in locating any available information on blackening processes for steel, stainless and brass. My preference would be for a cold process. Any help would be greatly appreciated!

D Vanek

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Hi, D. Room-temperature blackening is do-able but more expensive and overall a less satisfactory finish that hot black oxide. We have a quick FAQ intro to cold blackening on line. The Metal Finishing Guidebook has a chapter with formulas for solutions for blackening and coloring metals. But better results will be obtained with proprietary blackening systems available from the suppliers listed in our directory or in the yellow pages.

For hobbyist level work, Gun Blue and Brass Black are readily available. Good luck!

Ted Mooney, P.E.
finishing.com
Brick, New Jersey

Birchwood-Casey "Permablue" Bun Bluing Kit

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