Safire Intumescent and Acoustic Mastic

Safire Intumescent and Acoustic Mastic is a flexible, waterbased, cartridge applied acrylic intumescent sealant.

Safire Intumescent and Acoustic Mastic is a flexible,
waterbased, cartridge applied acrylic intumescent sealant.
Air curing, it forms a non-hardening flexible seal. When
exposed to fire it will swell to 4 times its original size,
creating a char, preventing the passage of fire, smoke and
toxic gases for up to 4 hours.

• Flexible water based intumescent acrylic sealant
• Tested to BS476 Part 20/22
• Up to 4 hours fire resistant
• Long term flexibility
• Excellent adhesion

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