| Product description: VINNAPAS® 400 H is a poly(vinyl alcohol) stabilized vinyl acetate-ethylene copolymer dispersion with a glass transition temperature (Tg) of 0 °C. It was developed as a higher viscosity, high-performance dispersion offering a superior balance of adhesive/cohesive properties useful in achieving much higher formulation viscosities. Properties: VINNAPAS® 400 H is used as a base for adhesives and offers a superior balance of adhesive/ cohesive properties. Much higher formulation viscosities can be achieved due to the higher viscosity of the dispersion. This allows for more dilution water to be added to achieve the same end viscosity and thus reduce overall costs. This dispersion exhibits excellent setting speed, wet tack, and high thickening response. It has clean machining and is suitable for a variety of roll, extruder or spray applications because of its poly(vinyl alcohol) stabilization. The dry film is tack-free and heat-sealable. The backbone of the polymer gives the dried adhesive film both high tensile strength and flexibility that continue to be present even with fluctuations in temperature and humidity. Just like VINNAPAS® 400, this dispersion has excellent heat resistance which, at elevated temperatures, is much greater than that exhibited by other vinyl acetate-ethylene, vinyl acetate-maleate and vinyl acetate-acrylate copolymers with similar glass transition temperatures. The initial adhesive strength is excellent even after aging, and it exhibits excellent resistance to plasticizer migration. Application: VINNAPAS® 400 H is an excellent base for adhesive formulators and can be used in an extremely wide variety of applications. The ethylene in the polymer acts as an internal plasticizer which provides flexibility and reduces or eliminates the need for plasticizer in many applications. Because of its flexibility and excellent adhesion to so many substrates, VINNAPAS® 400 H is a versatile base in adhesives for application areas which include but are not limited to packaging (case and carton,) converting, bookbinding, textile bonding, vinyl and paper to wood laminating, automotive applications, and craft glues. It forms strong bonds between porous substrates and such films as poly(vinyl chloride) (PVC), poly(vinylidene chloride), cellulose acetate, cellophane and acrylic. VINNAPAS® 400 H adheres to widely diversified substrates such as paper, wood, cotton cloth, nylon cloth, glass and glass fibers, hardboard, urethane foam and clay coated paperboard. Other Applications: - Paint (texture coatings)
- Consumer goods
- Gypsum board joint compound
Information provided by Wacker Chemie AG. |
