Prepainted steel sheet is coated with organic layer, 

which provides higher anti-corrosion property and a 

longer lifespan than that of galvanized steel sheets.

The base metals for prepainted steel sheet consist of 

cold-rolled, HDG electro-galvanized and hot-dip Alu-zinc

 coated. The finish coats of prepainted steel sheets can 

be classified into groups as follows: polyester, silicon 

modified polyesters, polyvinylidene fluoride, high-durability polyester, etc.

The production process has evolved from

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