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Wacker Launches New Environmentally-Friendly Polymer Dispersion for the Chinese Coatings Industry



By Tim Wright



Published November 20, 2009
As one of the world’s leading producers of binders and polymer additives for coatings, construction chemicals and adhesives, the Munich-based Wacker Group launched a new cutting-edge product at CHINACOAT 2009. The water-based dispersion called Vinnapas EF718 enables the formulation of ultra low VOC and low odor interior paints. The product represents a new advancement in VAE polymer technology and was developed for the China market based on a conjoint analysis with Chinese customers targeting the mid-end odorless interior paint market, according to the company. The emulsion is an aqueous dispersion of a vinyl acetate-ethylene (VAE) copolymer. It was developed as a low VOC, APEO-free binder for environmentally friendly and low odor paints. It offers scrub resistance, early water resistance and low odor and can be used as a cost competitive replacement for a variety of technologies including vinyl acrylics and styrene acrylics. As an application binder for architectural coatings, Vinnapas EF718 offers a balance of performance with the ability to formulate low odor paints at ultra low VOC levels (<10 g/l). It can also be formulated over a broad range of PVCs successfully replacing other technologies. Vinnapas EF718 requires no coalescent to form a film because of the “self-coalescence” of VAE copolymers. This provides a polymer that requires no cosolvent to form a film and therefore can be formulated into low odor low VOC paints.



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