Diatomite is a biogenic siliceous sedimentary rock, mainly composed of the remains of ancient diatoms. Its chemical composition is mainly SiO2, containing a small amount of Al2O3, Fe2O3, CaO, MgO, K2O, Na2O, P2O5 and organic matter. Diatomaceous earth, is a naturally occurring, soft, chalk-like,sedimentary rock mineral that is easily crumbled into a fine white to off-white powder. This powder has an abrasive feeling similar to pumice powder and is very light-weight due to its high porosity.
Diatomite coating additive products, with large porosity, strong absorption, chemical stability, abrasion resistance, heat resistance and other characteristics, can provide excellent surface properties of coatings, compatibilization, thickening and adhesion. Because of its large pore volume, it can shorten the drying time. Can also reduce the amount of resin, reduce costs.