RIM Process

Two liquid components, an isocyanate and a polyol, are placed in holding tanks. They are conditioned to the correct temperatures, pressures, and specific gravities. The dispensing unit pumps the correct amounts and ratios of each liquid during the injection phase of the molding cycle. Once combined and injected into the mold at low pressures and low temperatures there is an exothermic reaction that creates the plastic. This makes the RIM process suited for parts of many sizes, variable wall thicknesses, and complex geometry to be produced with attractive physical characteristics, dimensional stability and excellent chemical resistance properties.