The rheological properties of an industrial coating, adhesive or sealant are vital to its success. A well formulated industrial coating, adhesive or sealant has balanced rheological properties, easy but controlled application, good sag or slump resistance and storage stability. The thickeners incorporated in the coating, adhesive or sealant formulations provide the manufacturers the ability to design the rheological characteristics they need for a specific end use.
Organic thixotropes are castor oil or polyamide based materials that are especially useful in systems such as industrial coatings, construction sealants, caulks, adhesives, and mastics. These additives provide outstanding efficiency for shear thinning, viscosity build, sag control, and pigment suspension. However, the high activation temperature is sometimes a deterrent for a broader use. In this paper, we present a new generation of highly efficient organic thixotrope based thickeners that can be activated at significantly lower temperatures.
These new materials can be successfully incorporated in industrial coatings or sealant formulas for better viscosity build, sag resistance and higher extrusion rates. They display a wider process window and may require less energy in production.