Zhengzhou Dacromet coating has a special film structure, excellent corrosion resistance, no hydrogen embrittlement, no environmental pollution, etc. It has been widely used in industrialized countries, automobiles, electric power, construction, ships, railways, bridges and highway guardrails. Wide range of applications. Dacromet coating has manyexcellentperformance, but it also has disadvantages, although most of the Cr6 addition in the Dacromet coating is converted to Cr3 addition during the reaction process, but the Dacromet coating contains about 2% Cr6 addition. The baking curing process. But , a small amount of chromium remains in the coating in the form of soluble hexavalent chromium. Cr6 plus is a well-known harmful substance, which is highly toxic and carcinogenic, and will cause serious pollution to the human living environment. At present, countries around the world are restricting its use.
With the enhancement of global environmental awareness, chrome-free Zhengzhou Dacromet surface treatment has become a trend, and chrome-free electroplating, chrome-free passivation and chrome-free coating have begun to become the mainstream processing technology. Therefore, Zhengzhou Dacromet manufacturers must Research and develop a chromium-free Dacromet coating technology to replace the chromium-containing Dacromet coating.
