Fumed Silica enhances the cohesive properties of the film thus building a more integrated bond line with improved reinforcement. Aqueous Pre-dispersions of Fumed Silica eliminate the dispersing step that is required when working with Powder Fumed Silica simplifying the process while reducing mix time. It also enables the use of fumed silica in shear sensitive waterborne polymers systems. Aqueous Pre-dispersions of Fumed Silica also impart the combined properties of reinforcement with viscosity control and suspension properties. Aqueous Pre-dispersions of Fumed Silica result in better retention of inherent adhesive properties, showing a less impact on tack and peel performance compared to Fumed Silica Powder. The results also indicate that each adhesive system must be studied as results may vary based on chemistry and polymer sensitivity.
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