What are the types of coatings for color coils?

How much do you know about the application of color coated roll products? How much do you know about the types of color coated roll coatings? Next, we will give you a brief explanation.

1. Polyester (PE): As the coating of color coating rollers, polyester has the characteristics of good adhesion, rich colors, wide range of formability and outdoor durability, medium chemical resistance, and low cost.

2. Silicon modified polyester: namely SMP, the hardness, wear resistance and heat resistance of the coating film are good, as well as good external durability and pulverization resistance, light retention, general flexibility and medium cost.

3. High durability polyester (HDP): good color retention and UV resistance, good outdoor durability and crushing resistance, good film adhesion, rich colors and good cost performance.

4. Polyvinylidene fluoride (PVDF): good color retention and UV resistance, good outdoor durability and pulverization resistance, good solvent resistance, good formability, dust resistance, limited color and high cost.

The color-coated coil is based on hot-dip galvanized sheet, hot-dip aluminum-zinc sheet, electro-galvanized sheet, etc. After surface pretreatment (chemical degreasing, chemical conversion treatment), one or more layers of organic coating are applied to the surface, and then baked. The cured product. It is also called color-coated steel coil because it is coated with organic coatings of different colors.

Color coated rolls save raw materials. Extrusion belongs to less cutting processing, which greatly saves raw materials. It has a wide variety of products. Extrusion processing can not only produce workpieces, pipes, bars and wires with simple cross-sectional shapes, but also solid and hollow parts, profiles and products with complex cross-sectional shapes. The section changes in stages and gradually along the length. Many products with cross-sectional shapes cannot be formed by other plastic processing methods. The size range of extruded products is also very wide.