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Adhesives Ingredients
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Adhesives Ingredients

Ethylene Vinyl Acetate Hot Melt Label Adhesive

Adhesives Formulation

Applicable Type
Hot-melt Adhesives
Applicable Base Polymer
Ethylene Vinyl Acetates (EVA)
Applicable Industrial Sectors
Labels / Signs / Decals

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 when applied in the bookbinding operations. 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
Ethylene vinyl acetate copolymer resin (Elvax 250, Dupont) 
xxxx 
Microcrystalline wax (Victory White, Bareco) 
xxxx 
Partially hydrogenated rosin (Staybelite E, Eastman) 
xxxx 
(Source: Adhesives Formulary Handbook, NIIR Board, Asia Pacific Business Press, Inc., 2010, p. 257.) 
 

Typical Properties

Properties
Brookfield viscosity, cps, 
 
@ 121°C 
xxxx 
@ 149°C 
xxxx 
@ 177°C 
xxxx 
Brookfield viscosity after aging 32 hrs at 149°C, measured at 149°C 
xxxx 
Softening point, °C 
xx 
Needle penetration (ASTM D1321) at 38°C 
xxx 

Processing

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Resulting Properties

A starting formulation for a general purpose EVA hot melt label adhesive formulation is given in the table above. The adhesive is non-blocking when gravure applied. It will adhere to most packaging films, including polypropylene. It is particularly recommended for end and top labels on polypropylene packages.

Tips and Tricks

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