Describe
An elastomer composed of silicon, oxygen, hydrogen, and carbon, silicones are known for their ability to maintain flexibility and low compression set characteristics over the widest range of operating temperatures.
The main purpose
Static sealing in extreme temperature situations.FDA compliant for use in medical device seals.
Has low outgassing and excellent damping properties.
Temperature range
Standard Compound: -85°F to +400°FSpecial Compounds: -148°F to +400°FHardness (Shore A): 5 to 80
Feature
Specially compounded silicones perform to -148°F.Metallic fillers and conductive carbon black make silicones conductive for use in EMF/RF applications.

LSR is a low-viscosity silicone elastomer with high thermal stability and flexibility at low temperatures, high transparency and easy coloring for liquid injection molding (LIM) equipment. Also available are self-lubricating and conductive grades as well as FDA and medical compliant grades. Liquid silicone rubber is very suitable for the molding of complex profiles due to its excellent flow characteristics. See Silicones for other key benefits.

Capable of meeting USP Class VI and ISO 10993 requirements and can be sterilized by autoclave, gamma, ETO. Implants less than 30 days old and long-term implant grades available. Medical grade pigments are also available.

Limitations: Generally, the low abrasion and tear resistance and high friction properties of silicones cannot effectively seal some dynamic applications. At the same time, silicone is also highly gas permeable and is generally not recommended for use in contact with ketones (MEK, acetone) or concentrated acids.