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Great Stuff

Great Stuff Gaps and Cracks Insulating Foam Sealant,12 Ounce - Case of 12

  • Based on 846 reviews
Condition: New
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Availability: Only 1 left in stock, order soon!
Fulfilled by ✅Tool Kings Store 424 (S/N Recorded) ✅
Arrives Wednesday, Oct 7
Order within 7 hours and 46 minutes
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Features

  • WEATHER-TIGHT SEAL: Forms a permanent, water-resistant barrier to minimize drafts and block insect infestation. Ideal for sealing gaps and cracks in various building materials.
  • STRONG ADHESION: Exceptional bond to wood, metal, masonry, glass, and most plastics. This foam sealer gap filler ensures long-lasting results for both small and large projects.
  • VERSATILE APPLICATION: Suitable for interior or exterior use. Expanding foam sealant fills and insulates gaps, making it perfect for windows, doors, and other structural openings.
  • FAST CURING TIME: Tack free in six minutes and trims in thirty minutes. This spray foam fill cracks quickly, allowing for efficient project completion and minimal downtime.
  • FLEXIBLE FOAM ELASTICITY: Foam elasticity allows for movement and shifting within a structure. Acts as a reliable crack foam filler, maintaining a secure seal as buildings settle.

Description

Great Stuff Gaps & Cracks is a clear, water-resistant polyurethane insulating foam sealant designed to fill, air-seal, and insulate small gaps up to 1 inch, both indoors and outdoors. This foam sealer gap filler expands to fit the shape of cracks and voids, creating a durable, airtight bond that helps prevent unwanted airflow and reduces condensation. The easy-to-use straw applicator allows for precise application, making it ideal for sealing gaps around windows, doors, pipes, and electrical outlets. Suitable for a wide range of surfaces including wood, metal, masonry, glass, and most plastics, this expandable foam sealant is perfect for DIY projects and professional use. Each case contains twelve 12 oz. cans, with each can offering long-lasting performance and a shelf life of 900 days. The compact style and lightweight design make storage and handling simple. Great Stuff Gaps & Cracks is a reliable solution for anyone looking to improve energy efficiency and block drafts with a high-quality gap sealant foam. No batteries required.

Material: Foam


Brand: Great Stuff


Style: Compact


Item Weight: 12 ounces


Water Resistance Level: Water Resistant


Brand Name: Great Stuff


Number of Packs: 12


Unit Count: 144 Fluid Ounces


Number of Items: 12


Manufacturer: Dow


Model: GSGC12-12


Part Number: 157901


Item Weight: 12 ounces


Water Resistance Level: Water Resistant


Item Form: Foam


Compatible Material: Wood, Metal, Masonry, Glass, Most Plastics


Style Name: Compact


Color: Clear


Surface Recommendation: Wide range of surfaces, including wood, metal, masonry, glass, and most plastics


Material Type: Foam


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 7

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews

    • Good enough for a temporary fix
Number of Items: 12
Exactly what I needed. As long as you get it down exactly where you want it, you will be fine. Easy enough to use, just put it where you need it. It’s about 95-105 degrees this time of year so it dried really fast. Easy to fill cracks and it comes with nozzles that help.
Reviewed in the United States on July 27, 2026 by Jesse Garcia
    • Great!
Number of Items: 12
In the struggle against the Empire, every detail matters, and the secure handling of our intelligence and operational plans is critical. From recruitment dossiers to starship schematics and mission debriefs, everything has its place and must be protected from Imperial eyes. Even now, with the New Republic established, that discipline remains, especially for sensitive historical documents. These Pendaflex Recycled Classification File Folders (2 Dividers, 2" Embedded Fasteners, Red, Box of 10) are exactly what I needed. The "Classification" feature with its "2 Dividers" and "2" Embedded Fasteners" is a direct carry-over from our most effective Rebel Alliance protocols. It allows for a logical breakdown of information within a single file, preventing clutter and ensuring that related documents are always together. I use one section for original reports, another for encrypted copies, and a third for correspondence with Alliance High Command – clean, simple, and effective. The "2/5 Tab Cut" provides ample space for clear labeling, so there's no guesswork when I need to pull a specific file, even during a sudden Imperial raid. The "Red" color is excellent for designating high-priority or sensitive files, making them instantly recognizable and ensuring they receive the utmost care. And the fact that they're "Recycled" is a bonus; it aligns perfectly with our Alliance values of resourcefulness and sustainability, without sacrificing the ruggedness we demand from our equipment. These folders are built to last, holding up to repeated handling without tearing or falling apart, even after being smuggled through a few asteroid fields. For any Rebel veteran, New Republic official, or even a diligent historian who understands the value of meticulous record-keeping and demands reliability from their organizational tools, this Pendaflex set is a top-tier choice. It helps keep my personal "command center" running smoothly. For the Alliance! ... show more
Reviewed in the United States on February 11, 2026 by STEVEN MAGALLANES
    • Mind Blown
Number of Items: 12
I am writing this review while trapped in my own garage, slowly being consumed by a yellow, sticky monster of my own creation. 10/10, would buy again. I bought a can of this stuff to seal a tiny, microscopic gap around a pipe. The instructions said "low expansion." The instructions lied. 0:00 - The Application: I squeeze the trigger. A tiny, polite bead of beige goop appears. "Cute," I think. "This will be a tidy project." 0:05 - The Reckoning: I turn around to put the can down. I look back. The beige goop has awakened. It is no longer a bead. It is a slow-motion volcano of foam. It has swallowed the pipe, the wall, and is now actively trying to consume my wrench. 0:15 - The Panic: It has grown to the size of a small sheep. It is sentient. I try to scrape some off with a piece of cardboard, which only makes it angry. It expands faster. I now have a 4-foot yellow lung growing on my drywall. 0:30 - The Aftermath: It has hardened into a, well, hard substance. It looks like a beige, mutated cauliflower. Pros: It definitely filled the gap. And the gap next to the gap. And my neighbor's gap. The adhesion is insane. I am fairly sure this is stronger than atomic glue. I now have a very abstract, modern art piece in my garage. Cons: I am currently wearing the can as a permanent glove. It smells faintly of chemicals and broken dreams. ... show more
Reviewed in the United States on March 9, 2026 by robert
    • Good stuff, eorks great
Number of Items: 12
Not the same size can as I usually use but the contents are the same. Did a great job on sealing the new french door I just installed.
Reviewed in the United States on August 31, 2026 by Mike Cook
    • Messy, comes out like a rocket at first, handle fell off twice.
Number of Items: 12
Quantity: i used up the can on 6 vertical, double-hung windows, to winter-proof the room. Presumably the windows can't be opened without removing it first, which I will do in spring. i may use a 2nd can to fill any spots I missed the first time around. Easy of application: i shook it for a minute first, as instructed. One problem is that it came out much faster at first than at the end, so I had to adjust how fast I moved the straw end. I had no luck pressing the trigger lighter to get it to come out slower. The screw-in trigger never stopped turning when screwed on, and then fell off twice as I used it, so that gets low marks. Mess: i used a disposable glove on the can hand, and the glove did indeed get messy. Not sure if there was leakage at the handle, but there sure was the 2 times the handle fell off. Other sources of spills are when i put on too much at first when it came out like a rocket, and the weight caused it to fall off the window, and when I paused between windows, when the foam continued to expand in the tube and thus drip off the end. You really need to have a rag in the other hand to keep wiping off the end as it drips. I didn't have one, so kept wiping it off on the window sills., making a mess there. Stink: Not bad at all. i closed off the room and kept the pets out, as it dried, but it didn't bother me when applying it, and I'm quite sensitive to that type of thing. Clothing: I managed to avoid getting any on my skin or clothes. However, it almost hit my foot as it dropped, so old shoes you don't care about are recommended, along with old clothes and old or disposable gloves. ... show more
Reviewed in the United States on November 22, 2025 by StuRat
    • Good product thank you
Number of Items: 12
Works like it’s supposed to and arrived on time as promised undamaged
Reviewed in the United States on August 10, 2026 by Charles Hendryx
    • Too good to describe
Number of Items: 12
Hardly messy
Reviewed in the United States on August 28, 2026 by Daniel Nelson
    • This stuff is amazing. I have been using this for 30 years for everything. It works well.
Number of Items: 12
This stuff is amazing. I have been using this for 30 years for everything. It works well. I love how it expands. It filled in all my cracks. The price was perfect. Same price as the store. Free shipping. No odor at all. The adhesion is super strong. No messy at all. I didn't waste a drip. Highly recommend. ... show more
Reviewed in the United States on April 18, 2026 by Christopher R.

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