TEL: 916-652-5555

We don’t just make plastic parts. We provide




Rimnetics is North America’s premier reaction injection molding manufacturer for structural parts and enclosures, encapsulation, and overmolding.

For more than 30 years, Rimnetics has offered reaction injection molding services to the medical device, laboratory equipment, electronics, IT, construction, marine, and defense industries.

You can draw from our vast experience in RIM molding, RIM design, and tool making to make your project a success story at the lowest possible price.

We have done it hundreds of times before. Our reaction injection molding process provides you with more than molded parts. We provide molded solutions.


Reaction Injection Molding Manufacturers

Reaction Injection Molding (RIM) is the process by which molded polyurethane parts are made. In the process, 2 liquid components are mixed and injected into the mold where they chemically react and cure.

Polyurethane molded parts can be rigid and solid like an injection molded ABS or they can be a structural foam or elastomeric like rubber. Rimnetics is a reaction injection molding manufacturer with decades of experience improving polyurethane injection molding services.


Reaction Injection Molding (RIM) provides structural ‘one-piece’ solutions for your enclosures and structural parts.


Encapsulation and Overmolding with RIM molding for integrated composite solutions.


Learn how a clever RIM molding design can make the most of your industrial design, functionality, and budget.