PremSil Silicone Sponge is the ideal choice when the application needs a compressible material that can withstand the rigours of the environment and provide superior durability & longevity. It is the material of choice in envelope applications where the material needs to be relied upon to withstand the extremes of temperatures and water penetration, whilst surpassing the life cycle requirement. PremSil silicone sponge is an adaptable product and its numerous important properties means that it is useful in many construction applications. PremSil Silicone Sponge ‘Exceptional durability and flexibility for Construction Applications’

Key Product Benefits:

  • Environmental resistance
  • Thermal stability from -50oC up to +250oC
  • High gas permeability – a breathable product
  • High temperature double curing and no additional additives to reduce out gassing
  • High dielectric strength
  • Closed cell and sealed outer skin to enhance sealing properties and moisture resistance
  • Soft and compressible with good compression set to create an effective seal
  • UL94 V-0 flame retardant option available
  • Moisture resistance and UV resistance
  • Capable of achieving IP 66 or NEMA 4, 4X
  • A range of densities for variable closure force
  • Can be used as a dry seal, to replace mastics and adhesives
  • Zero VOCs

Typical Applications:

  • Structural Insulated Glazing/Curtain Walling – warm edge insulating glass spacers
  • Envelope – weatherproofing applications to withstand the extremes of the environment, without degrading
  • High-temperature gaskets and high voltage insulators
  • Expansion joint application – to accommodate repetitive movement and maintaining a seal
  • Acoustic and fire barriers