GREAT STUFF™ Fireblock

GREAT STUFF™ Fireblock Insulating Foam Sealant can save much more than energy costs. By sealing the pipe, cable and duct penetrations, you minimize airflow. During a fire, that means flames, harmful gasses and toxic smoke cannot spread as quickly. And in an emergency, that could make all the difference. The fact that it helps you conserve energy, reduce drafts and save on heating and cooling costs is great too.

  • Impedes spread of fire and smoke through service penetrations
  • Recognized as an Alternate Fireblocking material for residential construction
  • Tested according to ASTM E84, ASTM E814 (modified), UL 1715
  • Seals service penetrations between floors
  • Seals electrical runs through wall studs
  • Airtight, water-resistant
  • Exceptional adhesion to building materials
  • Tack free in 10-15 minutes; Trims in 60 minutes *
  • Bright orange colored foam for easy code identification
  • Cures rigid in 8 hours
  • All-direction dispensing
  • UL Classified
  • One 12 oz. can = up to 22 tubes of caulk
  • One 16 oz. can = up to 30 tubes of caulk

*70 ± 5 °F and 50 ± 5 %RH, , 1 inch bead diameter, 6 inch length. Cure rate is dependent on temperature, humidity, and size of foam bead.

GREAT STUFF™ Fireblock Sales Sheet (US) (365KB PDF)
GREAT STUFF™ Fireblock Sales Sheet (English) - Canada (365KB PDF)
GREAT STUFF™ Fireblock Sales Sheet (French) (313KB PDF)

GREAT STUFF™ Fireblock  
Why Use GREAT STUFF™ Fireblock
  • To impede the spread of smoke and fire
  • To conserve energy
  • To save money
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Product Specs:
  • GREAT STUFF™ Fireblock 12oz
  • GREAT STUFF™ Fireblock 16oz
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Safety & Handling
  • Remember to read these carefully before getting started.
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