Product News
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About color coated steel coil /prepainted steel coil structure
Color coated coil is composed of top coat, primer, coating, substrate and back paint. Finish paint: shield the sun, prevent ultraviolet damage to the coating; When the finish reaches the specified thickness, it can form a dense shielding film, reducing the permeability of water and oxygen. Primer...Read more -
The use environment of color-coated steel coil
1. Environmental factors of corrosion Latitude and longitude, temperature, humidity, total radiation (uv intensity, sunshine duration), rainfall, pH value, wind speed, wind direction, corrosive sediment (C1, SO2). 2. The influence of sunlight Sunlight is electromagnetic wave, according to the ene...Read more -
Thickness of paint coating
From a microscopic point of view, there are many pinholes in the coating, and the size of the pinholes is enough to allow external corrosive media (water, oxygen, chloride ions, etc.) to penetrate into the substrate, and u nder a certain relative humidity, a filamentous corrosion phenomenon occur...Read more -
Factors affecting the use of PPGI steel coil
The anticorrosive effect of building color coating products is the combination of coating, pretreatment film and coating (primer, top paint and back paint), which directly affects its service life. From the anticorrosion mechanism of color coating, organic coating is a kind of isolation material,...Read more