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The material selection platform
Adhesives Ingredients
The material selection platform
Adhesives Ingredients

VAE Waterborne Carton Sealing Adhesive (Plasticized Formula)

Adhesives Formulation

Applicable Type
Applicable Base Polymer
Applicable Industrial Sectors

Applicable Base Polymer Properties

Waterborne EVA adhesives for case sealing have good flexibility, low temperature properties and adhesion to coated papers. These adhesives provide a low to medium performance relatively inexpensive adhesive that dries quickly. A typical formulation consists of VAE latex, filler (if greater viscosity is desired), plasticizer (for improved flexibility), and water.

Typical Formulation Ingredients

Ingredient
Parts by weight
Vinyl ethylene acetate emulsion (Tg of 0°C) 
xxxx 
Dibenzoate blend 
xxx 
Biocide 
xxx 
Defoamer 
xxx 
Water 
xxx 
(Source: Petrie, E.M. Handbook of Adhesives and Sealants, 2nd ed, McGraw-Hill, New York, 2007.) 
 

Typical Properties

Properties
Viscosity, cps 
xxxx 
Open time, secs 
xxx 
Set time, secs 
x 

Processing

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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 a VAE adhesive that will provide a fast set and good penetration into the porous substrates.

The plasticized 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. However, heat resistance must be determined as the plasticizer will reduce the glass transition temperature. Another advantage of plasticized VAE adhesives is that the set time is reduced and the open time is increased. This gives the end-user or converter that ability to work with the adhesive for a longer period of time but still achieve rapid strength development.

Tips and Tricks

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