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ur XYSIL® fumed silica is white, innoxious, insipid, amorphous fine chemical powder. XYSIL® fumed silica has many features such as small partical size, large BET surface area, high surface activity and high purity. The original particle size can be 7-40 NM according to system setting, and the BET surface area is 70 – 40 m2/g. Because of nano-meter effect, XYSIL® fumed silica performs excellent nature of reinforcing, thickening, thixotropy, insulation, matting, resist sagging, it is widely used i