It's white minute granule. Of acid and alkali proof, heat-resistance, good insulation and high surface activity performance etc. SiO2 . nH2O Description: It's white minute granule. Of acid and alkali proof, heat-resistance, good insulation and high surface activity performance etc. As rubber active filler, it endows the sulfuration products excellent characteristics, e.g., tensile strength, regidity, elasticity, buckling and avulsion, abrasion resistance, ageing resistance and transparency etc. It's essential bulking active filler for top-grade sneaker, adhesive tape, ricehulling roll and tyre of colorful bicycles.Application: It's widely applied to rubber, plastic, paper making, agricultural chemicals, coating, paint, painting oil and daily chemical industry etc.

SiO2 . nH2O