Black-Magic CBL is a hot black oxide for copper and brass and bronze. Used in conjunction with Hubbard-Hall’s Black-Magic BAL, (Brass Activator Liquid), Black-Magic CBL produces the ultimate black finish on high zinc-alloyed copper surfaces.
Black-Magic CBL used at a concentration of 45% by volume in water. The alkaline solution is used at a temperature of 200F to 210F to blacken a wide range of copper, copperplated and copper-alloyed surfaces.
