Zinc phosphate coatings for iron and steel are used as oil based corrosion inhibitors. They are also used as a paint base. Attractive black finishes and a corrosion resistant finish is available when sealed with one of EPi’s E-Tec oil based corrosion inhibitors.
Microcrystalline zinc phosphate by immersion or spray. A calcium modified formulation which produces a fine-grained crystalline coating on iron and steel.
Heavy zinc phosphate for steel with a coating weight of 1,500 to 2,500 mg./sq. ft.
Low temperature heavy zinc phosphate for steel with a coating weight of 1,500+ mg./sq. ft.
Black zinc phosphates are produced on steel by using E-Prep-B as a pre-dip prior to zinc phosphating with E-Phos 660, E-Phos 662 and E-Phos 664.