WACKER has developed two new hydrophobic dispersions that improve crack bridging in water-repellent sealing slurries for building waterproofing. VINNAPAS® 754 ED is an additive for cementitious two-component sealing slurries that helps the slurries retain their ability to bridge cracks even at temperatures down to -5 °C. VINNAPAS 764 ED makes this possible down to -20 °C.
VINNAPAS 764 ED meets the requirements of class O2 of the EN 14 891 standard, which stipulates flexibility and crack-bridging ability down to -20 °C. The temperature at which the material becomes rigid is even around 30 °C. At -5 °C, VINNAPAS 754 ED offers sufficient flexibility and crack-bridging ability. It therefore meets the requirements of class O1 of the standard. The product also has a lower viscosity. As a result, two-component cementitious sealing slurries can be processed even more easily with this product.