IMPEDES THE SPREAD OF FLAMES AND SMOKE

GREAT STUFF™ Fireblock is specially formulated to impede the spread of flames and smoke through service penetrations – helping to slow the spread of these destructive elements during a fire.

Here's what makes GREAT STUFF™ Fireblock great:

  • Impedes the spread fire and smoke1
  • Bright orange in color for easy code identification
  • UL Classified
  • ICC-ES Evaluated ESR-1961
  • Seals electrical wires running through wall studs.
  • Creates an airtight, water-resistant seal.
  • Closes gaps and cracks, increasing the comfort and energy efficiency of your home.

It's easy to use because it's:

  • All-direction dispensing.
  • Tack-free in 5-15 minutes, trims in one hour2
  • Rigid after 8 hours of curing.
  • Adheres to most building materials.

1Intended for use in residential application to maintain the continuity of an approved fire block material. Not to be used in firestop applications.

270 ± 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 just got GREATER!

No drips, less mess - foam stops where you stop.
Reusable for up to 30 days - use again and again.
Precise, greater control.

DOWN TO THE DETAILS OF GREAT STUFF™ FIREBLOCK

Product Overview

Air-Seal Audit Checklist

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HOW TO USE GREAT STUFF™ FIREBLOCK

Read all instructions and safe handling information before you start. GREAT STUFF™ products should not to be used for filling closed cavities or voids such as behind walls and under tub surrounds.

 

GREAT STUFF™ INSULATING FOAM SEALANTS SAFE HANDLING

For warnings and precautions, disposal information and more, download GREAT STUFF™ Consumer Safety Information or view our safe handling videos.

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