Fortune Seven provides industrial Zinc and Manganese Phosphating conversion coatings conforming to ASTM F1137 and ISO 9717 standards. Our fine-grained Zinc Phosphating delivers superior corrosion resistance and an exceptional primer surface for paints and coatings. For heavy-friction components, our Manganese Phosphating creates an oil-absorptive layer that prevents galling and scuffing on threaded fasteners, gears, and oilfield hardware.