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Model #99053992

Store SKU #1001869301

16 oz. Fireblock Insulating Spray Foam Sealant with Quick Stop Straw

  • Mess-free dripping is ensured with quick-stop straw technology
  • Specially formulated for curbing fire spreads and smoke
  • Provides excellent adhesion to building materials
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Product Overview

GREAT STUFF Fireblock Insulating Foam Sealant with Quick Stop Straw Technology 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.
  • New quick stop straw technology - helps stop messy foam drips
  • Impedes spread of fire and smoke through service penetrations
  • Recognized as an alternate fire blocking material for residential construction; tested according to ASTM E84, ASTM E814 (modified), UL 1715
  • Seals service penetrations between floors and electrical runs through wall studs
  • Airtight, water-resistant and has exceptional adhesion to building materials
  • Tack free in 6 minutes; trims in 30 minutes; cures rigid in 8 hours
  • Bright orange colored foam for easy code identification
  • Click here to learn more about Eco Options and Energy Efficiency

Additional Resources

From the Manufacturer

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Cover Area Per Bag (sq. ft.)5 ft²Coverage Area (sq. ft.)5 ft²
Product Height (in.)9.5Product Width (in.)3 in


Compatible Install SurfaceCement,Concrete,Existing Insulation,PVC/CPVC Pipes,Plywood,WoodCure Time (hours)1
Dry to touch (min.)8Install Temperature (F)40-100
Insulation FeaturesFire Block Rated,Paintable,StainableInsulation R-ValueR2
Insulation R-Value per InchR3.7Insulation TypeSpray Can
Number of Pieces1Product Weight (lb.)1.37 lb
Product Weight (oz.)16 ozReturnable90-Day

Warranty / Certifications

Warranty InformationN/A

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Customer Reviews

  • 4.2
    out of 360 reviews
  • 85%recommend this product
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Showing 1-10 of 360 reviews
Help to protect
Help to protect
  • Verified Purchase
  • Recommended
useing this was better than old straight through nozzle ....secured a electric fireplace insert s...
useing this was better than old straight through nozzle ....secured a electric fireplace insert strategically. blocked flume in chimney with pink and fireblock to secure
  • Verified Purchase
  • Recommended
Listen to control the flow; 1 oz./linear foot
I bought this a while ago, and finally found/made the time to use it. 1) mist all of your potential work areas first with water; although it is possible to reuse the same disposable spray straw with 2 cans, you need to empty the can once you start spraying, else the straw dries out; 2) plan on 1 oz./linear foot; I sprayed four 16 oz. cans on the 1st floor joists above our unfinished basement, and it covered about 58 linear feet (although I sprayed it on a bit thicker than planned/anticipated until I figured it out); 3) I found that the best way to regulate the flow was to listen for the sound of the propellant gas escaping—the slower it escaped (up to a 5-10 second delay before the foam started flowing), the better I was able to control it, especially when the pressure was high with a new can; 4) wear gloves and eye protection, and let it dry before you try to clean up (then spills just popped off the concrete floor); 5) fill in large gaps with wood scraps before spraying, and it may take a few sprays (allowing drying time in between) to fill in large gaps (e.g. between joists a couple of inches apart). I am very proud of the attached photo as “my best endeavor,” as most of the rest of the floor joists showed quite a bit of extra foam...
    • Recommended
    10 found this review helpful
    • Verified Purchase
    Works Great and IS REUSABLE!!
    This is a great product! I have used it for many years with good results. It's expensive and can be frustrating to throw away half a can if you don't use it all I want to share a little tip to help you reuse it for a later project. Just watch the video https://youtu.be/vQK2kH-SySE Good luck!!
      • Recommended
      This is strictly a functional product ! How am...
      This is strictly a functional product ! How am I supposed to evaluate it unless I set my house on fire to ensure it worked ! As lon as township approved, I guess it works ! TIP: Don’t let the nozzle dry !
      • Verified Purchase
            Not reusable
            Great product needs way to reuse straw
            • Verified Purchase
            • Recommended
            Showing 1-10 of 360 reviews