Scroll to:

GTEC Fire Rated Silicone Sealant

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

Best suited for


  • Education
  • Retail & commercial
  • Sport
  • Healthcare
  • Multi Residential
  • Education
  • Leisure
  • Student accommodation
  • Hotel
  • Industrial


  • External
  • Vapour
  • Acoustic
  • Fire


  • 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.

Find Siniat near you