Ultra Blak 400 is a chemical solution made to convert the surface of ferrous metals into black iron oxide. Ultra Blak 400 then penetrates and becomes part of the surface, increasing the protection of the part, all while maintaining the part's original dimensions. But how can the Ultra Blak 400 help you?
By increasing corrosion protection, it adds years of life to the part and increases resistance to abrasion as well as increasing durability. Ultra Blak 400 also increases lubricity, allowing mating parts to perform their tasks smoother than ever before. The black oxide itself only adds 5 to 10 millionths of an inch to the part, helping the part itself to maintain its original purpose and dimensional stability.