G 300 Amorphus silica 7631-86-9 Millennium Chemicals Surface conditioner, miscellaneous >> Matting agent >> Amorphous silica Coil Coating Wood & Furniture Coatings Amorphous silica gel. Highly efficient matting. Recommended for leather, coil and wood coatings. Amorphous silica gel. Highly efficient matting. Recommended for leather, coil and wood coatings.