The process of thermo-diffusion zinc coating provides an effective corrosion protection to different parts, including screwed, made of steel and cast iron, and working in open air, in an industrial and marine atmosphere – in any place where the required thickness of coating is more than 20 microns. The coating is uniform and does not require additional mechanical treatment like padding surface preparation to coloring, gumming and other coverings. The coating provides full protection for iron-based sintered parts.
The process is ecologically friendly and is approved in Europe, Asia, USA and South Africa.
