SILICONE RUBBER (VMQ)

Silicone Rubber (VMQ)

ASTM Classification : FC / FE / GE
Temperature Range : - 60°C to 200°C (VMQ)
- 100°C to 200°C(PVMQ)

Silicone Rubber (VMQ) contains Vinyl, Methyl & Silicone as one of the primary constituents.

Other Silicone Rubbers (PVMQ) even work at - 100°C, however are quite expensive when compared with VMQ Silicones.All Silicone Rubbers maintain most of their properties even at elevated temperatures.

Due to inherent poor Tensile Strength, Tear Strength and Abrasion Resistance, Silicone Rubbers are recommended for Static Applications avoiding Dynamic Applications wherever possible.

Silicone Rubber is broadly Inert and hence is the first choice in medical, pharmaceutical & food contact applications.

Usually standard Silicone compounds are Peroxide Cured, however some are Platinum Cured, usually for Pharmaceutical applications.

Advantages

  • Good resistance to Dry Heat & flame
  • Good Resistance to Ozone, Weather & Sunlight
  • Resistance to Electric Resistivity
  • Good Resistance to Ammonia Refrigerants
  • Works well with Static Applications

Disadvantages

  • Poor resistance to Concentrated Acids & Alkalis
  • Poor resistance to Petroleum Fluids and Ketones
  • Poor Resistance to Silicone and Mineral Oils
  • Poor Resistance to Superheated Steam & Water
  • Doesn't works well with Dynamic Applications