Qingfeng Kro3 series trivalent chromium treatment agent, which does not contain hexavalent chromium harmful substances, can form a nanoscale conversion layer on the metal surface, has the function of enhancing coating adhesion and corrosion resistance, and can treat steel, galvanized steel, aluminum and aluminum alloy and zinc alloy materials.

Advantages of trivalent chromium treatment agent

Excellent coating adhesion and corrosion resistance

No sludge or very little sludge

Low-temperature process, saving energy and reducing operating costs

Free of phosphate, zinc, nickel, manganese and volatile organic compounds

Comply with RoHS (EU Directive 2002/95/EC), WEEE (EU Directive 2002/95/EC) and ELV specifications

Treatment engineering

Water washing 2&3 conductivity<350 us/cm, water washing 4 pure water conductivity<50 us/cm