What are the passivators for metal rust prevention?

Hello! There are many kinds of passivators for metal surface treatment. Passivation solutions are generally different according to different metal materials, and there are many kinds of passivation solutions for the same metal.

1. General metal passivation solution can be divided into: traditional chromate passivation solution (containing hexavalent chromium carcinogen is not environmentally friendly) and environmentally friendly passivation solution (containing no toxic heavy metals);

2. According to different materials, passivation solutions can be roughly divided into: stainless steel passivation solution, stainless steel passivation solution, copper passivation solution, aluminum passivation solution, zinc passivation solution, steel passivation solution, etc.

3. Passivation solution of environmental protection system can be divided into acidic passivation solution (stainless steel is generally acidic), neutral passivation solution and alkaline passivation solution.