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Gun applied water based sealant for use as an acoustic sealant, resilient adhesive, decorators caulk or as intumescent mastic to seal air gaps at system perimeter.


  • Supplied in handy foil pack to reduce waste
  • Compatible with GTEC Acoustic Sealant Foil Mastic Gun.


GTEC Intumescent Acoustic Sealant seals joints and service penetrations within walls, partitions, fire rated door frames and glazing systems.

Practical support from our technical experts

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