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Adhesives Ingredients
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Adhesives Ingredients

EVA Hot Melt for Bonding Difficult Plastics

Adhesives Formulation

Applicable Type
Hot-melt Adhesives
Applicable Base Polymer
Ethylene Vinyl Acetates (EVA)
Applicable Industrial Sectors
General caulking & sealing , General industrial (Duct tape) , General wood assembly

Applicable Base Polymer Properties

Hot melt EVAs are made from a combination of solid thermoplastic copolymers, tackifying resins, and waxes that function with the right viscosity. EVA adhesives demonstrate strong adhesive properties, but most importantly they set quickly by virtue of their hot melt character.

Typical Formulation Ingredients

Ingredient
Parts by weight
EVA polymer (Elvax 250, Dupont) 
xxxx 
EVA polymer (Elvax 260, Dupont) 
xxxx 
Tackifier – Polyterpene resin, 115°C m.p. 
xxxx 
Filler – Calcium carbonate (15 µm) 
xxxx 
Antioxidant - Butylhydroxytoluene 
xxx 
(Source: Pizzi, A. and Mittal, K.L., eds., Handbook of Adhesive Technology, Chapter 37, “Hot Melt Adhesives”, Pizzi, A., Marcel Dekker, New York, 2003.) 
 

Typical Properties

Properties
Viscosity at 149°C, cps 
xxxxxxxxxx 
Melting temperature by DSC, °C 
xxxx 

Processing

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Resulting Properties

Packaging applications are a primary market for hot-melt adhesives which are based predominantly on EVA copolymer resins. A tackified EVA is necessary for bonding plastic substrates that have a relatively low surface energy. A starting formulation for a low cost, general purpose EVA hot melt formulation for bonding plastic substrates is given in the table above.

Tips and Tricks

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