Introducing our high-quality Fumed Silica, specially formulated for use in RTV-2 and LSR applications. This versatile product is designed to enhance the performance and properties of your silicone rubber compounds. Our Fumed Silica offers excellent thixotropic behavior, ensuring easy mixing and improved stability. It enhances the mechanical strength, tear resistance, and elongation of your final products, making them more durable and reliable. With its exceptional heat resistance and electrical insulation properties, our Fumed Silica is perfect for a wide range of applications, including automotive, electronics, and industrial manufacturing. Trust our Fumed Silica to elevate the quality and performance of your RTV-2 and LSR formulations.

Hydrophobic Fumed Silica in sealant - HJSIL R110

After hydrophobic modification, the silanol groups on the surface of fumed silica are replaced by organic groups such as methyl groups, which improves the compatibility of the modified fumed silica with the RTV system and makes the hydrophobic fumed silica easy to disperse as the hydrophobicity increases, the transparency of RTV increases slightly. On the other hand, when hydrophobic fumed silica is used as filler, the storage stability of RTV will be greatly improved due to the relatively few surfaces active silanol groups of hydrophobic fumed silica, and its viscosity after 6 months of storage remained almost unchanged.

HJSIL R110 is a hydrophobic fumed silica after-treated with Polydimethylsiloxane (PDMS).

Applications:
HTV Silicone Rubber 
Paints and Inks
Adhesives and epoxy-resin-based sealants
Lubricants and cable gels


Product features:
Hydrophobic
Excellent thickening and thixotropy
Excellent anti-sag performance
Strong stability in epoxy resins
High reinforcing properties of silicone rubber
Improved free flow of powder coatings

Physical and chemical data of Aerosil Fumed Silica: