fumed silica

fumed silica (cas number 112945-52-5), also known as pyrogenic silica because it is produced in a flame, consists of microscopic droplets of amorphous silica fused into branched, chainlike, three-dimensional secondary particles which then agglomerate into tertiary particles. The resulting powder has an extremely low bulk density and high surface area. Its three-dimensional structure results in viscosity-increasing, thixotropic behavior when used as a thickener or reinforcing filler.

fumed silica has a very strong thickening effect. Primary particle size is 5–50 nm. The particles are non-porous and have a surface area of 50–600 m2/g. The density is 160–190 kg/m3.

application

•paints and coatings

•unsaturated polyester resins, laminating resins and gel coats

•htv- and rtv-2k-silicone rubber

•adhesives and sealants

•printing inks

•cable compounds and cable gels

•plant protection

•adhesives and sealants

•chemical mechanical planarization (cmp)

•coatings

•composites

•food additives

•greases

•pharmaceuticals

•printing and packaging

•silicone sealants

•skin and beauty care product 

*please refer to our technical for further information.

advantages

•optimum adjustment of rheology during processing

•reinforcement of silicone elastomers

•thickening of non-polar liquids

•free-flow of foodstuffs and industrial powders

•high chemical purity

•excellent insulation properties, even at high temperatures

•conversion of liquids to powders, e.g. Pharmaceuticals, cosmetics

•jellification of battery acids

•rheology control of greases and lubricants

fumed silica

fumed silica (cas number 112945-52-5), also known as pyrogenic silica because it is produced in a flame, consists of microscopic droplets of amorphous silica fused into branched, chainlike, three-dimensional secondary particles which then agglomerate into tertiary particles. The resulting powder has an extremely low bulk density and high surface area. Its three-dimensional structure results in viscosity-increasing, thixotropic behavior when used as a thickener or reinforcing filler.

fumed silica has a very strong thickening effect. Primary particle size is 5–50 nm. The particles are non-porous and have a surface area of 50–600 m2/g. The density is 160–190 kg/m3.

application

•paints and coatings

•unsaturated polyester resins, laminating resins and gel coats

•htv- and rtv-2k-silicone rubber

•adhesives and sealants

•printing inks

•cable compounds and cable gels

•plant protection

•adhesives and sealants

•chemical mechanical planarization (cmp)

•coatings

•composites

•food additives

•greases

•pharmaceuticals

•printing and packaging

•silicone sealants

•skin and beauty care product 

*please refer to our technical for further information.

advantages

•optimum adjustment of rheology during processing

•reinforcement of silicone elastomers

•thickening of non-polar liquids

•free-flow of foodstuffs and industrial powders

•high chemical purity

•excellent insulation properties, even at high temperatures

•conversion of liquids to powders, e.g. Pharmaceuticals, cosmetics

•jellification of battery acids

•rheology control of greases and lubricants