Temporary protective treatment ideal as a pre-varnishing cover.

Two different types of treatment, either zinc-phosphate coating (thickness between 6 and 15 microns) or zinc-calcium phosphate also called “micro-phosphate” coating (thickness between 3 and 6 microns).

It concerns the iron surface converting to a zinc-iron mixed salts protective film.

The corrosion-proof depends on the type of phosphate coating and on the optional lubricant (we apply the best brands of mineral oils such as Quaker, Agip, Castrol and Fuchs).

The film is diamagnetic and presents a low friction-coefficient (very low in the case of micro-phosphate coating), has a greyish good looking and shows a good salt-fog cabinet test results.