Vinac XX-210 poly(vinyl acetate) homopolymer Air Products Polyvinyl acetate emulsions & derivatives (PVAc…) >> PVAc homopolymers ADHESIVE Vinac XX poly(vinyl acetate) homopolymer emulsions are characterized by their high-bond strength, excellent machinability and nontoxic nature. They are storage and chemically stable, have outstanding freeze thaw stability and have fast setting speeds. The Vinac XX emulsion grades are similar in every respect except for their viscosities. The three viscosity ranges provide flexibility for the adhesive compounder to develop various adhesives with differing solids/viscosity relationships. The choice of viscosity range varies with intended application. Compounding All the Vinac XX emulsion grades will accept solutions of partially hydrolyzed poly(vinyl alcohol), but will cream at low finished-adhesive viscosities upon the addition of solutions of fully hydrolyzed poly(vinyl alcohol). All grades accept large amounts of either water-miscible or waterimmiscible solvents, and plasticizers. Many other compounding additives are readily accepted including humectants, thickeners, borated poly(vinyl alcohol), fillers, starches and other emulsion bases. All grades coagulate in the presence of borax or related compounds Applications: Vinac XX emulsions serve as general-purpose bases for adhesive compounds that span a variety of applications. In packaging, Vinac XX emulsions are particularly suitable for adhesives used in case and carton sealing and forming operations. These emulsions are also widely used in cup adhesives, bag adhesives, tube winding and envelope adhesives. The dried film of these emulsions is somewhat water sensitive and should, therefore, be considered in formulations for easy-clean packaging adhesives. In consumer applications, Vinac XX emulsions may be found in “white glues” sold throughout the U.S. In wood applications, Vinac XX emulsion-based adhesives are used in wood veneering, edge gluing and general-purpose furniture assembly. The Vinac XX grades have the highest wood compression strengths of the commercial high-speed, general-purpose emulsions. Poly(vinyl acetate) homopolymer emulsion characterized by its high-bond strength, excellent machinability and nontoxic nature. Provides water sensitive films, high adhesion to glass, hazy films, no dry tack and poor flexibility.