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LSR technology 20 Aug 2024

JOKER Industrial: Leading in LSR Manufacturing Solutions

LSR injection molding line with Wittmann Battenfeld machines and ELMET dosing units

Liquid silicone rubber (LSR) has become an essential material for medical devices, automotive parts, electronics and LED lighting.

Why LSR compared with TPE, NR, NBR, PU and EPDM

  • Stable from -40 °C to 230 °C
  • Resists acids, alkalis and oils
  • Biocompatible, non-toxic and odorless
  • High clarity with UV resistance, so it does not yellow
  • Lower carbon footprint, no VOC or PAH emissions, and no NOx or SO2 when burned

Where LSR is used

Medical catheters, automotive cable seals, LED lenses and seals, concave and convex optical lenses, O-rings for many industries, and electronic component seals.

The molding challenge

LSR has low viscosity and cures quickly, so temperature and timing must be controlled precisely, and mold design is critical for high-precision parts.

Equipment and facilities

  • Liquid injection molding (LIM) with ELMET dosing units and Wittmann Battenfeld machines
  • A Class 300,000 dust-free workshop, a constant temperature and humidity warehouse, a light distribution testing room and a dedicated silicone mold workshop

Customization

ODM and OEM production, with a focus on sustainable products.