PPGI coil is a kind of composite material, also called color coated steel plate. It is a product made of strip steel that is continuously subjected to surface degreasing and phosphating and other chemical transfer treatments on the production line, and then coated with organic paint and baked. The coating types of PPGI coil can be divided into: polyester (PE), silicon modified polyester (SMP), polyvinylidene fluoride (PVDF), high weather resistance polyester (HDP), clinker sol. How to judge the quality of PPGI coil! The color steel coil factory teaches you a few tricks.

Listen to the sound

Knock the PPGI coil with your fingers or with a hard object. If the material of the PPGI coil is poor, the sound will be dull, and the metal sound will not be obvious. The metal sound of the color steel plate with better material is relatively loud and crisp.

Observe the leakage edge of the color steel plate

After getting a piece of PPGI coil, I first observe whether the exposed steel material of the PPGI coil, such as the cross-section, is finely crystallized, whether it is gray, dark, and impurities. If the cut surface is of fine crystallinity, the quality is superior.

Look at the price

Everything you pay is what you pay for. When we compare the quality of PPGI coil, price is one aspect, but don't pay too much attention to price. If the price of a color steel plate is much lower than others, then we must pay attention to it.

Check the quality certificate of PPGI coil

Whether there are inspection standards of relevant departments. If possible, try to visit the PPGI coil manufacturer on site. See how the business environment is and whether it is formal. Ask about the reputation of this company in the market.