Low Cost PVAc Adhesive for Case Sealing or Glue Lap

Typical Formulation Ingredients

Ingredient

Parts by weight

PVAc emulsion (Daratak 17-300, Owensboro Specialty Polymers)

xxx

Plasticizer (dibutyl phthalate)

xx

Water

xxx

Thickener (Acrysol ASE 75 acrylic thickener, Dow Chemical)

xx

Water

xxx

Filler (ASP-400)

xxx

Ammonium hydroxide 28% solution

xx

(Source: Owensboro Specialty Polymers, Inc.)

Typical Properties

Properties

Total solids content, %

xxxxx

Consistency

xxxxxxxxxxxx

Adhesion

xxxxxxxxxx

Processing

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Resulting Properties

The low viscosity of the PVAc water emulsion and its fast setting capability provide an excellent adhesive for sealing of corrugated boxes and cartons. The table above provides a formulation for a polyvinyl acetate adhesive that will provide a fast set and good penetration into the corrugated cardboard substrate. The latex adhesive dries to a somewhat rubbery film by virtue of the plasticizer component. The adhesive has good resistance to water and good adhesion to most substrates.

Tips and Tricks

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