In order to remove the substrate surface when the wrong color coated cleaning, Intuit points or adversely affect product quality conversion film, as a subsequent step to provide a clean surface, so as to improve the adhesion and corrosion resistance of products between the substrate and the paint laid foundation. Practice and research results show that the quality of color-coated depends primarily on the pre-treatment cleaning and chemical conversion process that is color-coated, so the color coating specifications, cleaning is an important part of ensuring the quality of color-coated. Many factors affect the quality of the cleaning Boxing caitu, but can be summarized in the main not cleaning equipment, cleaning agents and cleaning process in three aspects. Only reasonable control these three factors to achieve the desired cleaning effect. Color coated steel substrate a cold rolled coil, galvanized sheet, galvanized plate and galvanized aluminum panels, although their surface conditions vary, but the basic cleaning process is similar to the main process: pre-cleaning - washing - wash - a multi-stage washing - dry. Caitu fire resistance is a confusing domestic pressure plate "on the use of polystyrene or polyurethane and other non-fireproof material for insulation of course there is a problem! But without the use of heat insulation layer # use only one steel building! as according to the existing fire safety regulations! it is difficult to meet the requirements "when the fire test! side of the jet flames! And if it goes up the other side of the plate)! 01!" is deemed to have reached its limits. "If there is no insulation! minutes inside! steel which reached +! 11! "And the heat is impossible to reach / a" 23 or more "project, but in fact the international single plate without insulation of a lot of" both insulation and also Fire Requirements! will result in excessive costs! in economic strength is still very weak case! this remains to be studied. Silver color coated | Jinhong Run Steel (certified) | Renhuai caitu provided by Boxing Xingfu Town 金宏润 Steel Industry and Trade Ministry. Boxing Xingfu Town 金宏润 Steel Industry and Trade Ministry (www.bxjhr.com) (www.bxjhr.com) is a leader in Binzhou, board (with) wood, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Jinhong Run Steel leadership with the staff warmly welcome all inquiries negotiations to create a better future for the steel Jinhong Run.