LIM & LSR Molding

Liquid silicone rubber (LSR) injection molding is a long established process but it is enjoying an upsurge in interest for medical, automotive, infant care, and general industrial applications. It requires specialty machinery and processing considerations compared to conventional thermoplastics molding. Notably, whereas thermoplastics must be heated in the injection barrel to their melting point, and then cooled in the mold back to a solid state, the reverse occurs with LSR. It starts out as a fluid and is then heated within the mold to initiate curing.

Knowledge Center

Insights into plastics technologies from industry experts.

Ability to “dial in” cure time, temperature, and Shore hardness offers new flexibility to LSR molders.
Article

LSR Molders Now Can Tailor Cure Speed, Temperature & Durometer

Elkem’s LSR Select is enabling faster cures at lower temperatures and custom durometer blends. Dosing equipment has caught up with capabilities of this novel material system.

Blog

Boy Machines Open House Shows Off Expanded Press Line, LSR & Two-Shot Capabilities

First Boy 125 E arrives in U.S.; focus on LSR capabilities.