Select Dispersing Agents for Adhesives and Sealants

Dispersing agents are essential formulation components that help disperse fillers or particles in adhesives and sealants. This selection guide will provide you a comprehensive review of important aspects related to dispersing agents selection for sealants, water-borne and solvent-borne adhesives. It will help you understand types of dispersing agents used, their mode of action and stabilizing processes. It will also acquaint you with various formulations challenges, factors & test methods to be considered while selecting dispersing agent for a specific adhesive formulation and end-use requirement.

Need for Dispersing Agents

Select Dispersing Agents for AdhesivesA dispersing agent is necessary to:

  • Generate a stable formulation, and
  • Provide storage stability

Thereby eliminating viscosity change and phase separation.

The dispersants deflocculate solids and thereby significantly reduce adhesive viscosity. Alternatively, solid loading can be increased with minimal effect on the formulation’s viscosity.

Dispersing agents are used in both waterborne and solvent-borne adhesives and sealants of all types. They are used extensively in waterborne formulations and are often combined with wetting agents to achieve the required balance of properties for the particular application. Their selection depends primarily on the other ingredients in the formulation and the final properties that are necessary for the specific application.

Modes of Action


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