What is Silicone Rubber?

The High-Temperature / Low-Temperature Rubber Material

Working Temperature Range:

High: 450°F / 232°C Low: -75°F / -59°C

What is Silicone Rubber?


Silicone rubber is the ideal choice for any product that requires high or low temperature resistance.  Silicone rubber stays flexible and provides excellent compression set across the entire range of temperatures.  Silicone also has an excellent tactile feel for consumer products and is resistant to weather (ozone, moisture, and oxygen). Silicone is one of many types of synthetic rubbers. We've published an article explaining the differences between natural and synthetic rubber here.

Advantages:

  • Excellent extreme temperature properties
  • Good compression set
  • Excellent tactile feel
Disadvantages
  • Poor abrasion resistance
  • Lower / fair tear resistance
 

How Does Silicone Compare:

 
MATERIAL ABBREVIATION VIBRATION
ISOLATION
RELATIVE PRICE TEMPERATURE RANGE OZONE, UV RESISTANCE OIL RESISTANCE
Natural NR Excellent Good -60F to 220F Poor Poor
Butyl IIR Excellent Fair -75F to 250F Good Poor
Ethylene-Propylene EPDM Good Excellent -70F to 250F Excellent Poor
Nitrile NBR Good Good -30F to 250F Poor Excellent
Neoprene / Chloroprene CR Excellent Excellent -60F to 220F Good Fair
Silicone VMQ Good Fair -175F to 450F Excellent Fair

Other Rubber Materials We Specialize In: