- Clipping hairs with a small pair of facial scissors is an option for women with few unwanted hairs. - Chemical depilatories (hair removal creams) are another option for hair removal. However, their major drawback is that many individuals find them too irritating to the skin. Bleaching creams may be used to camouflage hair instead of actually removing the hair.
Black oxide is a conversion coating formed by a chemical reaction produced when parts are immersed in the alkaline aqueous salt solution operated at approximately 285 degrees F. The reaction between the iron of the ferrous alloy and the hot oxide bath produces a magnitite (Fe3 O4) on the actual surface of the part.
For use on steel, zinc, stainless steel, copper, cast and malleable irons, Heatbathâs black oxide formulations are available in both liquid and powder forms. Supplementary products for black oxide finishing powdered metal, assemblies and silver soldered components are also available. Black Oxide for Ferrous Metals.