Elastomers / Silicones

Elastomers / Silicones (rubber) consist of (ir-)reversibly cross-linked macromolecules, which boasts a high elasticity in the operating temperature range.

The elasticity of most rubbers (e.g. Silicone) can be specifically adjusted by vulcanisation, i.e. the chemical or physical variation of the molecular cross-linking.  The Shore hardness is a significant  differentiatior as an index for the hardness of an elastomer (according to Albert Ferdinand Shore).

So-called blends (mixtures) of elastomers and thermoplasts are also used as elastic plastics. They are less resistant, but can be thermally processed.


  • permanently elastic
  • temperature resistant
  • oil resistant

Typical applications

  • seals (e.g. the seamless liquid silicone seal injected in one piece)
  • handles
  • medical articles
  • car tires

Technical options

  • injection moulding and various special processes (esp. foam injection moulding)
  • extrusion and various special processes
  • vulcanization

Closing forces on Liquid Silicone 

The Liquid Silicone machine can be used up to a clamping force of 30 tons.

e.g. the seamless Liquid Silicone seal

e.g. the seamless Liquid Silicone seal