Trivalent black chromium passivation process gives extremely good corrosion resistance to the zinc or zinc-nickel plated substrates, without any hexavalent chromium, can meet the environment protection standard. The zinc-nickel alloy coating is sealed by this process to maintain the color and the corrosion resistance is remarkably improved. It is suitable for rack plating and barrel plating. It is recommended that you use this process for black passivation for better sealing.
Black trivalent chromium passivation is widely used in industries like engineering, shipbuilding, car manufacturing, furniture, electric, etc.. It is applicable to rack or barrel plating.
HN-861A Zn-Ni Alloy Trivalent Chromium Black Passivation Additive
HN-861B Zn-Ni Alloy Trivalent Chromium Black Passivation Additive
1.Produce even black passivating film.
2.Without Cr VI, environmental protection.
3.The passivating solution can be used for a long time by replenishment based on consumption amount and no need for frequent change.
4.Good anti-corrosion, after sealing treatment, it won't appear white rust during 360-hour neutral salt spraying.
25kg/drum, 24 drums/pallet
Company IntroductionGuangdong Intensive Eco-tech Co., Ltd.(original name is Sur precision metal technology Co., Ltd.) , one of subordinates of Highnic Group, is a large-scale enterprise specializing in electroplating additive production and technological development. It locates in central part of Nonferrous Metal Industrial Development Zone, Nanhai, Foshan city, Guangdong, China. The company has established a R&D team and introduced world-class leading facilities to develop new plating technologies for metal surface finishing. The whole product series cover various metal finishing additives, PCB speciality chemical and PCB phosphorus copper anode, etc.