Improved Rheological Quality Control Tests for Today's Adhesives and Sealants
A range of rheological equipment is available with a variety of spindle geometries to properly perform quality control analyses of various adhesives and sealants.
Formulators are constantly updating their adhesive and sealant formulations; consequently, manufacturers of the equipment used to measure the adhesives’ and sealants’ flow behavior properties must keep current with these new formulations. Flow characteristics can vary dramatically, both during processing and in final application by the end user, due to the range of raw materials and rheology additives needed for a diverse range of applications. Viscometers and rheometers are the instruments of choice used to measure flow behavior, providing critical data such as yield stress, flow curve vs. shear rate, viscosity vs. temperature profile, creep behavior, and recovery.