Imported Premium ultrafine silica powders

Silica matting agent should have the following characteristics: easy to disperse; Good extinction performance, low addition can produce strong extinction performance; Less interference to the transparency of the film; It has little influence on the mechanical and chemical properties of the coating. Good suspension in liquid coating, can be stored for a long time, will not produce hard precipitation; It has little effect on rheological properties of coatings. High chemical inertness.

Silicon dioxide matting agent has the above characteristics, so in the paint dosage is the most. It is high in chemical purity, insoluble in water, various organic solvents and common acids, bases, only with concentrated alkali and hydrofluoric acid reaction, high in chemical inertia. Its index of refraction is 1.46, and a variety of coating resin refractive index 1.4~1.5 close, so good transparency. Silica matting agent treated with wax will not precipitate in solvent coatings during storage. Because it is a porous material, a low addition can produce strong extinction.