• Purshotam Company Private Limited

Room Temperature Blacking Process

Blackfasts' Room Temperature Blacking Process is a simple dip operation specifically designed for use in factories. The process does not materially effect dimensions and a uniform colouring is obtained over machined surfaces, threads and blind holes. Blacking is achieved by chemical conversion of the metal surface and the process entails degreasing, immersion in a surface conditioner, and blacking solution. Corrosion protection is afforded by a final immersion in dewatering oil.