When it comes to reinforcement, AEROSIL® fumed silica is essential.
One of the most important applications of AEROSIL® fumed silica in the adhesives and sealants industry is its use as an active reinforcing filler to improve the mechanical properties like tensile strength, tear resistance and elongation at break of adhesives and sealants. The reinforcing effect is caused mainly by particle-particle and particle-matrix-interactions.
AEROSIL® fumed silica is an essential reinforcing agent for many adhesives and sealants like polyurethanes, polysulfides, polybutyl, hybrid-adhesives and sealants and epoxies. Especially the structure-modified, hydrophobic grade AEROSIL® R 8200 is an excellent reinforcing agent with low thickening and high loading levels, but also the hydrophobic grades AEROSIL® R 974, AEROSIL® R 106, AEROSIL® R 812 S and AEROSIL® R 805 are outstanding reinforcing agents specifically recommended for transparent hybrid adhesives and sealants.
AEROSIL® R 8200 improves both tensile strength and elongation at break of transparent MS PolymerTM sealants!