The Thick Layer Passivation SurTec 680 for Zinc and Zinc Alloys with Exceptional Properties

 

Both solution and passivation film are free of hexavalent chromium and any other toxic or carcinogenic material.

Its corrosion protection exceeds the standards for yellow chromating without sealing; clearly higher request are fulfilled sealed.

Chromite layers are heat resistant with no or minimum loss of corrosion resistance.

All Zinc alloy can be chromited.

The film colour can be changed, accentuated or made clear with a choice of sealers or dyes.