... 1.Particle surface is organic treatment; 2.It is counter type of ED2; 3.High matting effection. Matting Agent BV809 Gasoloid ... agent(Gasoloid is the Matting agent’s production way) is a type of synthetic chemical, amorphous silica dioxide, that has strong porosity ... easy to form the hydrogen bonding combination, those both have a react group of hydrogen, for example,hydroxyl or amino. Silica ...