M.R. Mold & Engineering Corp.

2700 E Imperial Highway
Unit C
Brea, CA 92821-6711


Auxiliary Equipment //

Extrusion Air Regulator

Primary Processing Equipment //

Injection Molding

Resins / Compounds - Thermosets //

Silicone Rubber / Molding


M.R. Mold & Engineering is known for its EXPERTISE and EXPERIENCE in liquid silicone rubber (LSR), gum stock silicone, plastic injection and transfer molds for its customers. With over 125 years of combined experience within the industry, M.R. Mold's management team has developed the talent, sophisticated technical knowledge, and equipment for testing and developing optimum molding conditions. Currently M.R. Mold is ISO 9001 compliant, working towards certification.

M.R. Mold & Engineering is one of the few companies in the United States offering waste-free LSR molds using our Cold Runner system. Drawing upon our experience, we build tight tolerance flash less LSR molds for a number of industries, such as punctum plug micro molds which fit in the tear duct of an eye for medical.

M.R. Mold & Engineering has experience with plastic two plate designs or complex multi-cavity unscrewing molds, as well as molds for EPDM, Nitrile and Polyisoprene. Our experience with silicone and plastics makes over molding projects a natural for us.

M.R. Mold & Engineering offers testing and sampling of each silicone mold built within its 4,000 sq.ft. Tech Center, as well as the opportunity for turn-key projects.

M.R. Mold & Engineering has a line of proprietary equipment. We have developed and sold many standalone Cold Runner systems, which offers customers cost savings through shortened cycle times and less material waste. Our Stuffer Box affords customers the ability to do short run production without the hassle of using and cleaning a pumping unit. Our vacuum seals offer parting line sealing for silicone and rubber molds.

I invite you to visit us at now to see what we are all about!