ANIM® ZN903 trivalent chromium black passivation technology is a kind of easy-to-operate, convenient-to-use, environment-friendly and high-efficient, two-component trivalent chromium black passivating agent, which is applicable for all zinc plating layer, such as cyanide zinc plating, alkaline cyanide-free zinc plating, acidic zinc plating.
Characteristics of the products
1. It is complete trivalent chromium passivating agent without hazardous substances, such as hexavalent chromium, silver and dye, which complies with EU environmental protection standards.
2. It can produce black trivalent chromium passivating film, and the binding force with the film is as good as hexavalent chromium passivating film.
3. It is the two-component passivating agent, and it can greatly improve the salt fog resistance of the plated layer when meshed with sealing agent after black passiavtion.