Vinnapas 100/20 VLE Copolymer of vinyl acetate and vinyl laurate Wacker Polyvinyl acetate emulsions & derivatives (PVAc…) ADHESIVE VINNAPAS B 100/20 VLE is a 50 % solution of a co-polymer based on vinyl acetate and vinyl laurate in ethyl acetate. The base resin of VINNAPAS B 100/20 VLE is col-orless, transparent and has good light stability. Water absorption is lower and alkali resistance higher com-pared to VINNAPAS ® vinyl acetate homopolymer resins. A remarkable feature is that it releases solvent more quickly than the VINNAPAS ® homopolymer resins. The base resin of VINNAPAS ® B 100/20 VLE is per-manently flexible because the vinyl laurate copolymer component acts as an internal plasticizer. The plasti-cizing component cannot evaporate or migrate. VINNAPAS â B 100/20 VLE base resin is solid and plastic at room temperature and becomes very tacky at elevated temperatures. We recommend incorpo-rating an ageing stabilizer if B 100/20 VLE is sub-jected to prolonged exposure to high temperatures. Preliminary tests should be carried out as required. Heat-activated adhesive coatings Because of its thermoplasticity, VINNAPAS â B 100/20 VLE is used to make heat-sealable coatings for appli-cation to paper, cardboard, nitrocellulose coated alu-minum foil and similar materials. After the solution has dried, the coated material can be bonded to other substrates through application of heat and pressure. Since it is internally plasticized, VINNAPAS â B 100/20 VLE has a low heat-sealing temperature. Its blocking and sealing temperatures can be widely adjusted by combining the product with hard resins, such as ester-soluble nitrocellulose or cellulose acetobutyrate. VINNAPAS â B 100/20 VLE is readily compatible with all standard pigments and fillers. Colorless, transparent, solution of a copolymer based on vinyl acetate and vinyl laurate in ethyl acetate. Used in heat-activated adhesive coatingsts for application to paper, cardboard, nitrocellulose coated aluminum foil and similar materials. Offers good light stability, low water absorption, high alkali resistance, and quick solvent release. Possesses permanent flexibility and thermoplasticity. Provides low heat-sealing temperature. Can be combinated with hard resins, such as ester-soluble nitrocellulose or cellulose acetobutyrate. Gives compatibility with all standard pigments and fillers.