Passivation agent, passivation, zinc chromate-free, hot galvanized passivation

Galvanized surface passivation passivation solution (DOWELL-S300) technical specification of a range of applications DOWELL-S300 is a galvanized steel processing agents. Applies to strip line, the method of roll coating the coating process. Second, the process requires a standard process: galvanized → S300 treatment → drying with liquid roller speed: 70% to 90%; the coating roller: pressure between the roller and the coating roller 120 to 140% with liquid: 100 ~ 200 Kg / cm2 Drying: hot air, electromagnetic induction (plus air circulation) or far infrared drying methods. Temperature set to be processed is controlled within the range of 80 ~ 120 ℃.