18.3.1 Reaction-Injection Molding
In the reaction-injection molding (RIM) process, developed in 1969. a mixture of resin พ ith two or more reactive fluids is forced into the mold cavity at high speed (Fig. 18 8). Chem¬ical reactions take place rapidly in the mold, and the polymer solidifies into a thermoset part.
Major applications of this process produce automotive bumpers and lenders, thermal insulation for refrigerators and freezers, water skis, and Stiffeners for structural components.