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What are the coating types of Prepainted Galvanized Steel Coil
Prepainted Galvanized Steel Coil is made of cold-rolled steel strip and galvanized steel strip (electro-galvanized and hot-dip galvanized) on a continuous line. One or more layers of liquid paint, after baking and cooling the resulting sheet. Since the coating can have various colors, it is customary to call the coated steel sheet color coated steel coil. And because the coating is carried out before the steel plate is formed, it is called pre-coated steel coil in foreign countries.
Types of Color Coated Coils
Polyester (PE)
Good adhesion, rich color, wide range in formability and outdoor durability, medium chemical resistance, low cost.
Silicon modified polyester
Namely (SMP), the coating film has good hardness, abrasion resistance and heat resistance, as well as good external durability and chalk resistance, gloss retention, average flexibility, and moderate cost.
High Durability Polyester
Namely (HDP), excellent color retention and UV resistance, excellent outdoor durability and chalk resistance, good film adhesion, rich color, excellent cost performance.
Polyvinylidene fluoride
Namely (PVDF), excellent color retention and UV resistance, excellent outdoor durability and chalk resistance, excellent solvent resistance, good formability, dirt resistance, limited color, high cost.
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