When you need medium to large, lightweight parts with thin walls, detailing, and structural integrity, Reaction Injection Moulding (RIM) offers a versatile and highly cost-effective solution. Perfect for producing niche, low-to-mid volume parts—typically from 1 to several hundred units—RIM bridges the gap between prototyping and high-cost injection moulding with flexibility and precision.

Unlike traditional thermoplastic injection moulding, RIM uses low-viscosity liquid polymers in a thermoset process. These materials are injected into heated moulds where they chemically react, expand, and solidify. This process supports complex geometries, varied wall thicknesses, and integrated features such as inserts—while achieving smooth, high-quality surface finishes that often require little or no post-processing.

At Paragon Rapid Technologies, our in-house RIM facility is equipped to handle demanding technical requirements with rapid turnaround. We offer a range of moulding materials including reinforced silicone, epoxy resin, GRP, and composite machined tooling. Whether you’re consolidating multiple parts into a single component or need production-grade performance at a lower tooling cost, our expert team delivers consistent quality and exceptional customer service, every time.