Silopren* LSR 2740 Self-bonding, Liquid Silicone Rubber

PRIMERLESS ADHESION, INJECTION MOLDABLE

Silopren LSR 2740 is a 40 durometer (Shore A hardness), biocompatible, two- component self-bonding liquid silicone rubber for injection molding processes.  Silopren LSR 2740 offers primerless adhesion to a variety of substrates including nylon, polysulfone, co-polyesters, stainless steel, and aluminum. It is an excellent candidate to consider for two-component medical devices, such as sleep apnea and respiratory masks, IV valves, surgical instruments and sealing elements.

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More About Silopren* LSR 2740 Self-bonding, Liquid Silicone Rubber

Silopren LSR 2740 offers primerless adhesion to a variety of thermoplastic and metal substrates without adhesion to the mold.  Full bond strength can typically be reached after a short post cure or by longer storage at room temperature.  Like standard liquid silicone rubbers, Silopren LSR 2740 also has high temperature stability, and can easily be pigmented with LSR color pastes.  

 

Key Features and Typical Benefits:

  • Biocompatibility (USP Class VI, ISO 10993)
  • Primerless adhesion to nylon and co-polyesters, stainless steel and aluminum
  • Adhesion to polysulfone after plasma activation of the substrate
  • No adhesion to the mold
  • High thermal stability

Potential Applications:

  • Respiratory and sleep apnea masks
  • Membranes and diaphragms
  • Surgical and dental instrument grips
  • IV components
  • Other hard-soft combinations

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*The marks followed by an asterisk (*) are trademarks of Momentive Performance Materials Inc.