Black Oxide has unique properties, offering an ideal finish for the metal manufacturing industry. The finish will not chip, peel, or rub off. You can't achieve the same protection, appearance, and performance qualities with other finishing processes for the same low cost as black oxide.
Colors In Chromate
Applicable to most metal surfaces, these are low-temperature dip-bath processes that produce a chemical film of chromate which is extremely thin and does not alter dimensions. Coating color varies with the particular metal and alloy, & most often there is an iridescent color. Because there is no dimensional change, chromating can be applied to all gears, including precision, after tooth cutting.
