Coating knowledge: waterborne and powder coating become the mainstream

Core tip: if a large amount of VOC is produced by coating production lines such as automobile, etc., there are also heavy metal problems In Europe, coating technology is used instead of coating, and water-based and powder coating is used as far as possible, which is far lower than the requirements of European emission regulations The concept of zero VOC emission is further proposed by some advanced automobile coating production lines There are many steps of phosphating and passivation in the surface treatment, and the heavy metal chromium passivator is used Cr6 + is a carcinogen, which is harmful to people There has been a great progress in the research and development of simplifying phosphating process and chromium process abroad Water based alkyd coating has been successfully applied in the simultaneous process of phosphating and passivation Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home News: Automobile and other coating production lines, such as the use of solvent paint to produce a large number of VOCs, there are heavy metal problems In Europe, coating technology is used instead of coating, and water-based and powder coating is used as far as possible, which is far lower than the requirements of European emission regulations The concept of zero VOC emission is further proposed by some advanced automobile coating production lines There are many steps of phosphating and passivation in the surface treatment, and the heavy metal chromium passivator is used Cr6 + is a carcinogen, which is harmful to people There has been a great progress in the research and development of simplifying phosphating process and chromium process abroad The simultaneous process of waterborne alkyd coating, phosphating and passivation has been successfully applied, which not only simplifies the process, but also eliminates the passivator Containing Cr6 + The synchronous process of epoxy primer, VOC free acrylic emulsion, air dry varnish coating and phosphating passivation has also been developed successfully For the surface treatment of aluminum alloy and stainless steel used in aircraft manufacturing, the traditional process is to use phosphate phosphating treatment, water washing and drying, passivation with the mixture of Dissolved Hexavalent chromium salt and chromic acid, then water washing and drying, and then coating primer Using modified alkoxy silane and alkoxy precursors, the conversion coating was prepared by sol-gel process instead of phosphating and passivation technology Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,