Special Silica for Silicone Rubber

Special Silica for Silicone Rubber HPSIL® silica is ultra-fine precipitated silica made by special processing technology. This series of products has high specific surface area, fine particles, and with low impurity content. Highly recommended in the rubber industry.Rubbers and Plastics Applications:RubberSilicone RubberSpeciality Silica features:Improve tensile-strength, abrasion resistance and transparency in silicon rubberExcellent yellowing resistance and high transparency Improve the hardness, tensile and tear strength of silicone rubber productsExcellent abrasion resistance performance Precipitated Silica As Rubber Filler Technical data sheet: HPSIL® Particle Size BET Loss on drying Sulphate Content PH Value SiO2 Content IronContent Packaging（bag） (μm) （m2/g） （%） （%） （%） （mg/kg） 325 35 160-180 4 ~ 8 ≤1.5 6.5 ~ 7.5 ≥90 ≤1000 20kgs 360 8 180-200 4 ~ 8 ≤1.5 6.5 ~ 7.5 ≥90 ≤500 10kgs 365 8 180-200 4 ~ 8 ≤1.0 6.5 ~ 7.5 ≥90…