Fumed Silica, Pyrogenic silica, Colloidal silica, Silica fume, AEROSIL R 202 (EVONIK), Aerobik R202, 67762-90-7

Fumed Silica, Pyrogenic silica, Colloidal silica, Silica fume, AEROSIL R 202 (EVONIK), Aerobik R202, 67762-90-7

Aerobik R202, also known as AEROSIL® R 202, is a fumed silica that has been surface-treated with polydimethylsiloxane. This treatment gives it excellent thickening properties and high hydrophobicity2. It's commonly used in various applications, including epoxy, polyurethane, and vinylester resins, as well as in cosmetic preparations to improve water resistance. Additionally, it enhances the anti-settling behavior of pigments and the anti-sagging behavior in coatings

Fumed silica, also known as pyrogenic silica, is a very fine, high-purity silica powder. It's produced by flame hydrolysis of silicon tetrachloride or from quartz sand vaporized in a 3000 °C electric arc. This process creates tiny particles with a large surface area, making it an excellent thickening agent and anti-caking agent.

Fumed silica is used in a variety of applications, including:

• Cosmetics: To improve the texture and stability of products.

• Paints and coatings: To enhance the viscosity and prevent sagging.

• Adhesives and sealants: To improve the mechanical properties and stability.

• Pharmaceuticals: As a glidant to improve the flow properties of powders.

Fumed silica is known by several other names, including:

• Pyrogenic silica

• Colloidal silica

• Silica fume

• Aerosil (a brand name by Evonik Industries)

CAS No : 67762-90-7

AEROSIL® R 202 is a fumed silica after treated with a polydimethylsiloxane. It is used for adhesives and sealants, epoxy-, vinylester resins, cable gels, and gelcoats. AEROSIL® R 202 helps with the thickening and thixotropy of complex polar liquids based on epoxy, polyurethane, or vinylester resins. It also helps the thickening and thixotropy of cable gels for fiber optic cables.AEROSIL® R 202 is a fumed silica after treated with a polydimethylsiloxane. It is used for adhesives and sealants, epoxy-, vinylester resins, cable gels, and gelcoats. AEROSIL® R 202 helps with the thickening and thixotropy of complex polar liquids based on epoxy, polyurethane, or vinylester resins. It also helps the thickening and thixotropy of cable gels for fiber optic cables.