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GTEC Fire Rated Silicone Sealant

Fire rated silicone sealant for external use with Weather Defence external sheathing board


  • Fire rated to ensure system integrity
  • Supplied in handy foil pack to reduce waste
  • Compatible with GTEC Mastic Gun
  • Cartridge size 0.6 litres


GTEC Fire Rated Silicone Sealant seals joints between adjoining Weather Defence external boards and around glazing and service penetrations.

Practical support from our technical experts

Technical support: Design stage
Technical Support at Design Stage
Technical support: On-site
Technical Support On Site