SPCC Pre Painted Corrugated Gi Sheet Z30-Z140 Galvanized Color Coated

Color Steel Roofing Z30-Z140 AZ20-AZ160 Good Water Resistance

The material. First judge the coloring layer is cement or paint. There are two concrete color tile coloring methods; First: color tile color layer is cement and inorganic pigments, resin and silica aggregate, the thickness of about 0.5mm. It has strong adhesion (and tile production at the same time) weather resistance is general, after a certain period of sun and rain easy to fade. Old-fashioned tiles and small tiles are mostly colored in this way because of the low cost; Second: the use of paint spraying, spraying bright color, generally spraying dry film thickness of about 35um, after more than ten years of use, long does not change color does not peel. Distinguish WHEN OBSERVE first: THE FORMER FROM the side and end to see the coloring layer has a certain thickness, the latter is very thin, and can see the spray paint point.