LSR Engineering is a specialized custom molder of Liquid Silicone Rubber. LSR Engineering focuses on demanding applications that require high temperature plastic materials and very close tolerance molding. LSR is a proprietary name for a range of two-component Liquid Silicone Rubbers used to produce elastomer parts via injection molding. Working closely with our Built-Rite Tool & Die division we produce precision molds for applications requiring high cavitation, Insert Molding/Over Molding of plastic and metal parts and low cavitation/prototype parts. Because of its high thermal stability, resistance to compressive set and chemical resistance to aging, LSR is the material of choice for many applications and industries like medical, military, electronics, appliance and automotive industries.