Prepainted galvalume roofing sheet is the best roofing material used across the world. We use galvalume coated base steel. Galvalume is an alloy of 55% Aluminium 43.5% Zinc and 1.5% Silicon, it is the most durable metal coating to withstand our tropical atmosphere.
Commodity | Prepainted galvalume roofing sheet |
Grade | SGCC,SPCC,DX51D,ETC |
Width | As request |
Thickness | 0.12-1.5mm(0.14-0.5mm is the most advantage thickness) |
Type of coating | Prepainted/color coated |
Package | Export standard package:bundled wooden box or be required; |
Color | Any RAL code |
Application | Industrial panels,roofing and siding for painting |
Prepainted galvalume roofing sheet is made through continuous mills in the following way:
First, galvanized steel baseplate and aluminized zinc silicon baseplate will go through surface pretreatment (degreasing)
Then the plate with be coated with a layer or layers of liquid coating through roll coating method
In the end, the plate will go through roasting and cooling processes.
Usually coated plate is called color-coated steel plate, because its surface can be coated in different colors. When organic coating is coated on surface of hot-galvanized steel plate and hot aluminized zinc silicon plate, we will get color hot-galvanized steel plate and color hot-aluminized zinc silicon plate. Coated plate has the property of zinc-protecting, isolating and anti-rusting, which makes its service life longer than hot-galvanized plate.
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