Self-Seal GG-266  is a single-component, neutral cure, non-slumping intumescent silicone caulk that is designed to seal combustible service penetrations in fire-rated walls and floors.  As the combustible penetrating item softens and collapses under fire conditions, the firestop sealant will expand to fill the voids left when combustible materials burn and deteriorate in a fire. It swells when heated, sealing a gap, protecting material underneath in the case of a fire.

  • Non-sag silicone
  • Water-resistant before, during, and after cure
  • Freeze-thaw stable
  • Protects your wall & floor openings
  • Tested at positive pressure to simulate the pressure differentials that can occur in a fire situation
  • Self-Seal GG-266 has achieved GREENGUARD GOLD Certification

Available Sizes with Colours
300 ml. cart. (12/cs)- Rust Red
600 ml. sausg.(12/cs)-Rust Red

Product Data Sheet
Safety Data Sheet
Get a Quote