Hot Zinc Phosphating Chemical
SFOCOAT-ZX process is operated at higher temperature by dipping method to produce a smooth and continuous fine grain Zinc Phosphate conversion coating. This coating improves adhesion between paints and steel and also protects steel from under-paint corrosion thus enhancing life and durability of paints.
ASFOCOAT-ZX process is used on all steel surfaces which are to be painted or powder coated. It is also used on ground and machined components etc. to produce medium to heavy weight zinc phosphate coating which is then sealed with rust preventive such as ASFOSIL DW-56. This process is ideally suited to produce dark grey to black phosphate coating on nut bolts and fasteners.