Coated diamond is pided into electrolytic and chemical plating, it includes Ni coating, Cu coating, Ti coating, Cr coating etc. Coated diamond effectively increase holding force between diamond and bonding, reduce thermal shock, protect diamond against oxidation and graphite, lengthen product lifetime.

        Electroplating Nickel products mainly used in resin bond products with dry and wet abrasives, effectively improve the holding force, with good thermal stable ability, avoid carbonization in high speed cutting. Chemistry plating Nickel products mainly used in resin bond products with dry and wet abrasives, no external current conditions, and deposited metal on diamond surface by process of self-catalytic redox reactions, form the thickness and density of nickel-plated.