Today, WACKER is a global market and technology leader in the field of polymeric binders based on vinyl acetate-ethylene (VAE) copolymers, which are sold around the world under the VINNAPAS® brand name. “Our binders are one of the chief ingredients of modern construction and tile adhesives, external thermal insulation composite systems (ETICS), self-leveling compounds and fillers, plasters and repair mortars,” says Andreas Collignon, head of Application Technology Construction Polymers at WACKER POLYMERS.
For ETICS, up to four percent VINNAPAS® in the mortar is enough to form a stable bond between the insulation board and substrate, for example. VINNAPAS® polymers provide an ideal and long-term solution, particularly for fixing difficult-to-bond materials to critical substrates.
Polymeric binders also revolutionized tile-laying by introducing the so-called thin-bed technique, in which the traditional cement mortar is replaced by a formulated tile adhesive that is spread quickly and easily over a large area. The tiles are then positioned and slid into place, creating a uniform adhesive bed that is just millimeters thick. Less material is consumed and tiles can be laid much faster. Possible applications are to be found all over a building, from tiled flooring through to roof insulation.