(Known as BONDERITE 769-S )

BONDERITE M-ZN 769 is formulated for spray and immersion application to cold rolled steel, galvanized steel, electro-galvanized steel, zinc-alloy coated steels, and small amounts of aluminum. The metals may be treated individually or in mixed production. The 769 process converts the metal surface to a nonmetallic, polycrystalline coating containing manganese, cobalt and zinc phosphates. Nonmetallic, polycrystalline zinc phosphate coating.