Typical Formulation Ingredients
Ingredient
Parts by weight
Vinyl acetate acrylic copolymer (Rovace RP-2931, Dow Chemical)
PVA stabilized copolymer emulsion (Rhoplex R-498, Dow Chemical)
Plasticizer – Dibenzoate (Benzoflex 50, Eastman Chemical)
Resulting Properties
The low viscosity of the water emulsion and its fast setting capability provide an excellent adhesive for sealing of corrugated boxes, cartons, and paper bags. The table above provides a formulation for an adhesive that will provide a fast set and good penetration into the porous substrates. The latex adhesive dries to a somewhat rubbery film by virtue of the flexible nature of the copolymer. The adhesive has good resistance to water and good adhesion to most substrates.