Typical Formulation Ingredients
Phase
Ingredient
Parts by weight
A
Polyterpene resin (Wingtack 76, Cray Valley)
A
EVA copolymer (Elvax 260, DuPont)
A
Paraffin wax (67°C melting point)
Typical Properties
MIT flex (0.5 kg tension) flexes to failure
Aging stability (6 days at 100°C)
Resulting Properties
A starting formulation for an EVA hot melt formulation commonly used in curtain coating applications is given in the table above.
This specific adhesive is noted for low viscosity as well as for its excellent:
It has good adhesion to a variety of packaging films and can be applied over most wax based carton coatings, providing an excellent seal.
A formulation from Flick, E.W., Adhesive and Sealant Compound Formulations, Noyes Publications, 1984, p. 271.