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.

New, larger sizes of Incoe’s Slim-Flo screw-in nozzles
Article

Plentiful News in Hot Runners at Fakuma Show

More compact hot runners, even for large parts; smarter controls; unusual nozzle designs; remote mold monitoring; and a new source of LSR cold-runners.

Article

NPE2018 New Technology Focus: LSR in the Spotlight

LSR remains a popular topic, visible at numerous molding demos at the show.
New Product Announcements
Product

Injection Molding: Machine Upgrades for LSR

Wittmann Battenfeld LSR injection machines have an improved screw design and integrate the dosing pump into the press controller.