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Sutherlands Home Improvement Centers and Building Materials Since 1917
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Dow Great Stuff

12-Ounce Fireblock Insulating Foam Sealant

Mfg.# 306179
Sku# 1017847
Location Price

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*Estimated stock levels as of Thu, Feb 22, 2018. All items subject to prior sale. Please call ahead to verify.

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.

  • Impedes the spread fire and smoke through service penetrations.
  • 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.
  • All-direction dispensing.
  • Tack-free in 5-15 minutes, trims in one hour.*
  • Rigid after 8 hours of curing.
  • Bright orange for easy code identification.
  • Adheres to most building materials.
  • UL Classified.
  • CCMC 13074-L

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

**Intended for use in residential application to maintain the continuity of an approved fire block material.

Color:Bright Orange
Curing time (hours):8
Size:12 oz
Type:Specialty Sealant