G 603 Amorphus silica 7631-86-9 Millennium Chemicals Surface conditioner, miscellaneous >> Matting agent >> Amorphous silica Surface conditioner, miscellaneous >> Texturing agent Architectural / Decorative Amorphus silica. Shows excellent matting and texturing characteristics. Used in architecture coatings. Amorphus silica. Shows excellent matting and texturing characteristics. Used in architecture coatings.