![]() ![]() ![]() If corrugated galvanized steel sheets are used, it should not be lower than Z275, and its service life is much lower than that of AZ150. Therefore, in the construction roof, corrugated galvalume steel sheets AZ150 should be preferred. It is mainly exported to Southeast Asia.ġ) The corrosion resistance of galvalume steel roofing sheets is 3 to 5 times that of corrugated galvanized steel sheets, and the more severe the corrosion, the greater the difference. The anti-fingerprint galvalume steel roofing sheet is coated with anti-fingerprint liquid on the galvalume sheet and plays a role in anti-rust.The galvalume steel roofing sheet is made of galvalume Steel coil and processed by a roll forming machine.For color corrugated steel roofing or temporary roofs with a service life of 10 years or more, polyester is used for the paints type.For pre-painted corrugated steel roofing with a service life of 15 years or more, the paints type should use silicon modified polyester or high weather resistant polyester.For PPGI corrugated steel roofing with a service life of 25 years and above, polyvinylidene fluoride (fluorocarbon PVDF) should be used for the paints type.They are mainly processed into corrugated sheets or sandwich sheets with polyurethane and are used for the construction of industrial and commercial buildings such as steel structure workshops, warehouses, and freezers. The color coated sheets for construction are generally made of hot-dip galvanized steel sheets and hot-dip aluzinc steel sheets. The surface state of the color coated sheets can be divided into a corrugated coated sheet, a corrugated embossed sheet, and a corrugated pattern sheet. The coating types can be classified into polyester, silicon modified polyester, polyvinylidene fluoride, and plastisol. Its base steel is cold rolled sheets, hot galvanized steel sheets, and aluzinc steel sheets. The corrugated colour coated sheets coating is a product obtained by subjecting a cold rolled steel sheet or a galvanized steel sheet to a surface chemical treatment (roll coating) or a composite organic coating (such as a PVC coating) and then baking and curing. Nippon and Akzo Nobel paint can be customized according to customer requirements.The main material of color paint coating is PE paint, which has the characteristics of low price, various colors and high-temperature resistance.The color coated roofing sheet is made of color-coated steel coil and processed by a Roll Forming Machine.Corrugated steel roofing sheet is made of color coated sheet and galvanized steel sheet and processed by Roll Forming Machine.Īccording to the different shapes, it is mainly divided into T-shaped tiles, corrugated tiles, glazed tiles and so on.Īccording to different metal materials, it can be divided into color coated roofing sheets, hot dipped galvanized corrugated roofing sheets and galvalume sheet roofing. ![]()
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