Which Shandong color steel plate manufacturer has strong direct sales

Description :

　　The commonly used coatings for color coated steel plates are polyester (PE), followed by silicon modified resin (SMP), high weather resistant polyester (HDP), polyvinylidene fluoride (PVDF), etc. The coating structure is divided into two coatings and one baking, and two coatings and two baking. The coating thickness is generally 20-25u on the surface and 8-10u on the back, and should not be less than 20u on the surface and 10u on the back for external use. The standards commonly used for color coated steel plates are ASTM A527 (galvanized) and ASTM AT92 (aluminum zinc plated) in the United States, JIS G3302 in Japan, EN/0142 in Europe, KS D3506 in South Korea, and Q/BQB420 in Baosteel.

　　1. Polyester (PE) has good adhesion, a wide range of formability and outdoor durability, and moderate chemical resistance. The service life is 7-10 years. 2. Silicon modified resin (SMP) coating has good hardness, wear resistance, and heat resistance, as well as good external durability and non powdering properties, limited gloss retention and flexibility. The service life is 10-15 years. 3. High weather resistant polyester (HDP) has excellent UV resistance and high durability, and its main performance is between polyester and fluorocarbon. The service life is 10-12 years. 4. Polyvinylidene fluoride (PVDF) has good formability and color retention, excellent outdoor durability and powdering, solvent resistance, and limited color. The service life is 20-25 years. Color coated profiled steel sheet, commonly known as color steel sheet, is made of cold-rolled steel sheet, hot-dip galvanized steel sheet or aluminum zinc coated steel sheet as the substrate. After surface degreasing, phosphating, chromate treatment and conversion, it is coated with organic coating and baked. It has the characteristics of light weight, high strength, bright color, and good durability. Widely used in fields such as construction, home appliances, decoration, and automobiles. The strength of color steel plate depends on the substrate material and thickness, and the durability depends on the coating (galvanized amount of 318g/m2) and surface coating. The coating includes polyester, silicone resin, fluororesin, etc., with a coating thickness of 25um or more. The coating structure includes two coatings and one baking, two coatings and two baking, etc. The maintenance free service life can be 20-30 years depending on the environment and atmosphere.

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• Shandong Color Steel Plate