RIM Moulding

RIM PU Moulding

RIM Process Overview

Due to the relatively low pressure and temperature involved in the RIM process, moulds can be made from either aluminium or resin model board. Material choice depends largely on the required life of the mould and the complexity of the component to be moulded. For production of 10,000+ mouldings and parts with intricate detail, aluminium moulds are recommended, and cost considerably less than the equivalent injection moulding tools. For lower volumes, mould tools are manufactured from a stable, dense Polyurethane Model Board.

The process involves filling the tool cavity with a quick-curing exothermic Polyurethane material under low pressure, allowing the material to cure and removing the moulded part from the tool. After de-flashing and trimming the components can be painted if required.

With an extensive range of resins available we can match our clients aesthetic and functional requirements including the moulding in of any fasteners, bushes or fixings. We can simulate most production thermoplastic materials used in injection moulding for both prototype and production applications, (ABS, PP, High Temp Materials and more).