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What is Color Coated Steel or Prepainted Steel?

Mar 28, 2021

What is Color Coated Steel or Prepainted Steel?

What is Color Coated Steel or Prepainted Steel?

The color coated steel plate and coil is also named prepainted steel, it is a popular structure steel product made by cold-rolled steel plate, electro-galvanized steel plate or hot-dip galvanized steel plate as the substrate, after base plate surface is degreased, phosphatized, chromate treated, coated with organic coating and baked, it is usually made of cold-rolled steel plate.


Color-coated boards that are used as substrates are often applicated in indoor low-corrosion environments such as furniture. Color-coated boards with electro-galvanized steel plates are commonly used in home appliances industries and interiors that require high leveling, and hot-dip galvanized steel is used as the substrate. The color coated steel plate is mainly used in the construction industry due to its strong corrosion resistance.


The color coated steel plate is a composite material composed of a base plate and a coating material, which has the characteristic advantages of both the steel plate and the organic material, and has both the mechanical strength and the easy molding property of the steel plate, usually organic material has good decorativeness and corrosion resistance. The coating structure is divided into 2 time coat 1 heat and 1 time coat and 2 time heat.