Plasticizers for adhesives

Why use a plasticizer in an adhesive?

A plasticizer is a formulation component used to modify the properties of a polymer binder, particularly the flexibility of the adhesive film. Its effect depends on the polymer chemistry, dosage and other ingredients in the formulation.

When selecting a plasticizer for a polyvinyl acetate (PVAc) adhesive, check its suitability for that specific binder. Recommendations for PVAc systems should not automatically be applied to polyvinyl alcohol (PVOH) or other polymer systems.

Products in the catalogue

• ECOD-FLEX 332 is a three-component dibenzoate plasticizer. Its suitability for a particular adhesive must be assessed through compatibility checks and testing of the finished formulation.
• Glycerol triacetate (triacetin) is used as a plasticizer, including in waterborne adhesive systems based on vinyl acetate polymers. Product quality requirements should be defined according to the intended application.

A plasticizer is an adhesive ingredient rather than a finished adhesive. Two additives with a similar function are not necessarily interchangeable at the same dosage.

Selection criteria

• Binder chemistry: the polymer dispersion or solution and its compatibility with the additive.
• Processing requirements: working viscosity, application method, open time and drying conditions.
• Bond performance: flexibility, strength and resistance under the intended service conditions.
• Formulation composition: solids content, fillers and other additives.

Determine the dosage and incorporation procedure using technical documentation and formulation trials. When replacing a plasticizer, evaluate the finished adhesive as well as the properties of the additive itself.

Product and supply enquiries

When contacting REVADA Industrial, specify the product, binder chemistry, required plasticizing effect and purchasing volume. Sample enquiries can be submitted through the product pages; sample availability and supply terms are subject to confirmation.

Other formulation components are listed in our adhesive raw materials catalogue. For pricing and technical documentation, contact REVADA Industrial.