Hjsil 150 Characteristics Hjsil150 is a hydrophilic fumed silica with a specific surface area of 150 ©o/g. It is a kind of high purity white colloidal powder. Applications Htv and rtv silicone rubber Adhesives and sealants Paints and coatings Properties Reinforcement filler in elastomers Rheology and thixotropy control of liquid systems, binders, polymers, etc. Used as anti-settling, thickening, anti-sagging agent Improvement of free flow and anti-caking characteristics of powders 3-layer kraft paper bag, 10kg per bag.