ROHS BASED TRIVALENT BLUE YELLOW BLACK AND OLIVE GREEN PASSIVATIONS
Today metal finishing processes are moving towards trivalent chromates to meet European Union initiatives End of Life of Vehicle (ELV), sustainability solutions and RoHS. The usage of hexavalent chromates has been limited, resulting in trivalent passivations now being used more predominantly. Trivalent passivations produce a finish with lower water content providing more heat resistance. Trivalent passivations address some of the major issues when switching over from hexavalent chromates:
Zinc-coated steel offers a unique combination of properties unmatched by any other material.
These include:
- High strength
- Formability
- Light weight
- Corrosion resistance
- Recyclability
- Low cost