FC-WG series passivating agent does not contain heavy metals chromium ions, it is the second generation of environmental protection product to replace chromating. Suitable for dipping, spraying, roller coating etc, used for the surface passivation treatment of hot galvanized plate, electro-galvanized sheet, Aluminium zinc plate. Passivating agent contains inorganic metal salts and special functional water-soluble resin, can form a layer of colorless conversion film on the surface of zinc plate and aluminum zinc plate, it has excellent corrosion resistance and paint adhesion, meets the following requirement. Main physical and chemical indicators
Exterior
Green transparent liquid
pH value
5±0.5
Proportion
≥1.1
Product Features
² Green, free of chromium ions, meet RoHS environmental requirements;
² Excellent performance, strong binding force with the coating, passivation fast, good corrosion resistance;
Easy to use, easy to operate and manage, to ensure production safety.