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Hello every body
I am a student of coatings technology and I am working on a project on passivation in automotive industry.
In my country we have chrome-free passivation and instead of chromium acids we use zirconium salts.
Could anyone help me on the mechanism of this process?Arezoo Razavi
Dear Mr. Razavi-
Zirconium along with other film formers will passivate zinc, the result is a clear and not very corrosion resistant finish. How many hours of salt spray does your zirconium provide?
Regards,Martin Straus, Owner
- Chicago Illinois USA
I'm a chemical engineering student working on my end of degree project. It would be very useful for me if somebody could give me some information about the free-chromium passivation process in the automotive industry using titanium salts. Topics like mechanism, cost, effluent treatment and required modifications for using titanium on a chromium passivation process are what I'm looking for.
Thank you,Pablo RodrÌguez
- Vigo, Spain