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Introduce the relevant knowledge of prepainted coil coating
2023-07-07

   

When it comes to the color of pre-painted rolls, everyone is clear, but many people are not clear about the paint film coating of pre-painted rolls. Next, I will introduce the coating related knowledge of pre-painted rolls


1. Ester coated (PE) color coated coil


PE polyester color-coated sheet has good adhesion, rich colors, wide range in formability and outdoor durability, medium chemical resistance, and low cost. The advantage of PE polyester color-coated sheet is mainly its high cost performance. In a more friendly environment, it is recommended to use PE polyester color-coated sheet


2. High weather resistance coating (HDP) prepainted coil


HDP high-weather-resistant color-coated board has excellent color retention and anti-ultraviolet performance, excellent outdoor durability and chalking resistance, good adhesion of paint film coating, rich colors, and excellent cost performance. The most suitable environment for high-weather-resistant HDP pressure-coated color-coated rolls is the harsh weather environment. For example, in areas with strong ultraviolet rays such as plateaus, we will recommend HDP high-weather-resistant pressure-type color-coated rolls.


3. Silicon modified coating (SMP) color coated board


The coating film of SMP silicon polyester color-coated board has good hardness, wear resistance and heat resistance; and good external durability, chalking resistance, gloss retention, general flexibility and medium cost. The most suitable environment for SMP silicon-modified polyester pressure-coated color-coated coils is the factory building with high temperature, such as steel mills and other environments with high indoor temperature, it is generally recommended to use SMP silicon-modified polyester pressure-coated color-coated rolls


4. Fluorocarbon coating (PVDF) color coated coil;


PVDF fluorocarbon color-coated sheet has excellent color retention and UV resistance, excellent outdoor durability and chalking resistance, excellent solvent resistance, good formability, dirt resistance, limited color, and high cost. PVDF profiled color-coated rolls have high corrosion resistance characteristics. Many factories with strong corrosive environments will choose PVDF profiled color-coated rolls. There are often humid sea breezes on the beach that are more corrosive. Generally, PVDF profiled color-coated rolls will be selected.