Bobine ppgl is color coated galvalume coil , which is an acronym for prepainted galvalume steel, it use aluzinc as substrate. After surface pretreatment(chemical degreasing and chemical conversion treatment), the surface coated with a layer or several layers of coating, through baking and curing, then become the PPGI.
The paint film that we can do 10-30microns. The higher the paint film, the longer the service life of the color.
The painting material are PE, SMP, HDP, PVDF, ects.