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PROPERTIES OF LSR PARTS

PROPERTIES OF LSR PARTS

LSR’s specific properties are a result of its unique chemical structure. Its backbone is formed by a series of siloxane bonds which, compared to carbon bonds, are stronger and more stable. This provides liquid silicone rubber products with:

  • Superior temperature range performance. Liquid silicone products won’t elongate at high temperatures. They also remain flexible at temperatures as low as -40?C. High thermal stability makes LSR parts suitable for heavy-duty applications.

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  • Electrical resistance. On its own, LSR offers high resistance to corona discharge, making it a good choice for use as an insulator in high-voltage applications. However, it is also possible to add conductive materials without compromising the other properties of an LSR component, so that it can be used to make keyboard contact points and other electrical parts.


  • Chemical stability. Liquid silicone rubber parts are chemically inert, hypoallergenic and resistant to bacteria growth. They also feature high biocompatibility, which makes them suitable for healthcare applications. However, they can degrade when exposed to certain organic compounds, or to highly acidic or basic environments.

Liquid silicone rubber molded parts are odorless and tasteless. Unique colors and visual effects can be achieved through the use of pigments and master-batches. Parts are also ozone and UV safe. Other notable features of liquid silicone rubber parts include:


  • Flame retardancy
  • Low creep and compression set
  • Weatherability
  • Vibration absorption

  • Resistance to mold, mildew, and bacteria growth
  • Corrosion resistance

  • Resistance to steam and humidity

  • UL component recognition
  • And more

Many different variations of LSR are available to support potential applications in a wide range of industries. To learn more about specific properties of different liquid silicone rubber products, contact Shenzhen LYA Silicone to speak with one of our in-house engineers.

Tim Report

Website: www.lyasilicone.net

Phone: 86 13424306032;

Skype: lyasilicon5;

Email: sale5@lyasilicone.com;

Keywords in the article: LSR, molding, liquid silicone products