trivalent chromium passivation agent

The product is made of trivalent chromium salt and other accelerators and complexing agents. It is widely used in surface passivation, oxidation resistance and coating pretreatment of die casting aluminum and aluminum alloy. The coating is colorless to light blue, with good corrosion resistance, which meets the corrosion resistance standards of mil-dtl-81706 and mil-dtl5541. It fully conforms to the RoHS and national environmental protection regulations of the European Union and is applicable to the processing of precision products. It is widely used in the processing of automobile, electronic instruments, household appliances, communication equipment, sports equipment and other product parts.