Mechanical Galvanising
This is a room temperature process in which zinc coating is applied to fasteners without electrolysis (which is used for electroplating) and without hot molten zinc bath (which is used for Hot-Dip Galvanizing). Fasteners are placed in a large rotary barrel along with zinc powder, special promoters, and glass impact media. The mechanical energy generated from the barrel's rotation is transmitted through the glass impact media and causes the zinc powder to be mechanically welded to the surface of the fastener
Mechanical Galvanizing results in a very uniform coating thickness reducing thread fit issues at assembly, making it a preferable coating for small diameter fasteners. Mechanical Galvanizing provide excellent coating uniformity and the process is consistent from batch to batch and within each batch