Introducing our revolutionary silicone sealant enhanced with hydrophobic fumed silica, designed specifically for professionals seeking unmatched water repellency and durability. This advanced formula combines the exceptional properties of fumed silica with the flexibility and versatility of silicone sealant, providing a superior solution for a wide range of applications. Our hydrophobic fumed silica technology forms a highly effective barrier against water penetration, preventing moisture-related damages and ensuring long-lasting protection. With its excellent adhesion, weather resistance, and easy application, this silicone sealant is the ultimate choice for professionals who demand exceptional performance and reliability in their projects. Trust our hydrophobic fumed silica silicone sealant to deliver outstanding results, even in the most challenging environments.

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.

Features in sealant
Easy to disperse, easier to mix with other materials
Increase the transparency of clear silicone glue
Extend the life of silicone rubber
Ensure product quality stability of silicone rubber

Physical and chemical data of Aerosil Fumed Silica: