Bitumen coatings prevent water from entering the foundation or the roof of a building. When you add polymers from WACKERrsquo;s VINNEVAreg; product range to the bitumen emulsion, the mass adheres better to the substrate, yet at the same time, itrsquo;s less sticky. Also, it repels water more effectively than other products. Since the composition of bitumen differs depending on where it is sourced, WACKER offers a customized solution for each application.