0041343007912

GREAT STUFF PRO

Model # 341557

Internet # 202892471

Store SKU # 532953

Store SO SKU # 621947

24 oz. Gaps and Cracks Insulating Foam Sealant

$12.47 /each
  • Code approved fireblock, minimizing passage of smoke & flames
  • Minimal-expanding; fills, seals, and insulates gaps up to 3"
  • Specially designed for use with PRO series foam dispensing guns

Frequently Bought Together

Product Overview

GREAT STUFF PRO Gaps and Cracks 24 oz. Insulating Foam Sealant insulates and seals cracks and openings up to 3 in. Using GREAT STUFF PRO gaps and cracks helps prevent unwanted drafts, moisture and insects. It is designed to be applied with one of the GREAT STUFF PRO series foam dispensing guns.

  • Insulates and seals cracks and openings up to 3 in. to help prevent drafts, moisture and insects
  • Ideal for use with great stuff pro foam-applicator guns
  • Energy Star compliant
  • US fireblock rating (always check your local fire codes)
  • Identifiable orange color
  • How much do you need? Let our calculator help:
    Insulation calculator button

Info & Guides

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Specifications

Dimensions

Product Depth (in.) 
2.75 
Product Height (in.) 
10.75 
Product Width (in.) 
2.75 

Details

Insulation R-Value 
Insulation Type 
Spray Foam 
Paintable / Stainable 
Paintable/Stainable 
Product Weight (oz.) 
24 oz 
Returnable 
90-Day 
Two Part 
No 

Warranty / Certifications

ENERGY STAR Certified 
Yes 
Fire Block Rated 
Yes 
Warranty Information 
NA 

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Customer Questions & Answers

15 Questions49 Answers

Customer Questions & Answers

24 oz. Gaps and Cracks Insulating Foam Sealant
24 oz. Gaps and Cracks Insulating Foam Sealant

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7 answers

is this water proof so to fill a crack between the house and the patio

This question is from 24 oz. Gaps and Cracks Insulating Foam Sealant
Asked by
chubby12
pleasanton kansas
May 27, 2013
water is getting in the bacement between the concrete patio and the house thru a block wall
iI was looking at great stuff pro gaps and cracks
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Answers (7)

Asked by
Wentzville, Miisouri
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November 2, 2014
Answer: 
this product is listed a water resistance, so as long as you don't have a flood this should work fine.
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Asked by
Midland Tx
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April 14, 2014
Answer: 
need to use an expansion joint or sub-terrain sealant- remove any loos debris - fill with crackfill - let cure - remove excess foam - clean area first let dry - apply a silicone base sealaint over the expansion foam, and allow to cure - apply a sub-terrain sealant at least 3" above & below the crack. this should cure the issue for a while
Would recommend the following for a more permeate fix
1. remove
Read More
need to use an expansion joint or sub-terrain sealant- remove any loos debris - fill with crackfill - let cure - remove excess foam - clean area first let dry - apply a silicone base sealaint over the expansion foam, and allow to cure - apply a sub-terrain sealant at least 3" above & below the crack. this should cure the issue for a while
Would recommend the following for a more permeate fix
1. remove damaged blocks
2. clean surrounding blocks
3. install new blocks
4. coat the outside wall with a sub-terrain sealant
5. install a flashing over the sealant
6. recoat with sealant
Read Less
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Asked by
Houston
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November 19, 2013
Answer: 
I'm not a polymer expert but I can say that if it's bonded to the surfaces to which its applied then water will not pass through the cured foam. It does not seem to bond to wet surfaces
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Asked by
Houston, TX, USA
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September 21, 2013
Answer: 
It is water proof in the beginning, but it breaks down and becomes more porous. I would recommend coating it with something more durable and water proof. I had been using the water proofing sealant in the one gallon can from the roofing section. It is black, and I use a putty knife to spread it. It takes a couple of weeks to cure to a harder surface.
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Asked by
Kingman, AZ, USA
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June 4, 2013
Answer: 
The foam itself is waterproof, but if you experience any movement or shrinkage between the patio and house, you will have the leakage again.
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Asked by
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May 29, 2013
Answer: 
No, foam products are not appropriate for this use. I would suggest a high quality silicon caulk if the gap is small enough to be caulked directly or with a backer material. If the gap is to large for this treatment you may want to consider filling the gap with a cement type product and then applying a waterproof top coating.
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May 28, 2013
Answer: 
GREAT STUFF™ Gaps & Cracks is a polyurethane-based insulating foam sealant that fills, air-seals and insulates small gaps (up to 1 inch) inside or out. But you probably guessed as much from the name. What you might not have guessed is how easy it is to use (thanks to the straw applicator) or how it expands to take the shape of cracks and voids to form a durable, airtight, and water-resistant bond that Read More
GREAT STUFF™ Gaps & Cracks is a polyurethane-based insulating foam sealant that fills, air-seals and insulates small gaps (up to 1 inch) inside or out. But you probably guessed as much from the name. What you might not have guessed is how easy it is to use (thanks to the straw applicator) or how it expands to take the shape of cracks and voids to form a durable, airtight, and water-resistant bond that eliminates unwanted airflow and helps reduce condensation. GREAT STUFF™ Gaps & Cracks is water-resistant, but it is not to be considered water proof.
GREAT STUFF™ can be used outdoors. However, cured foam will discolor if exposed to ultraviolet (UV) light. If left exposed, the foam will eventually crumble. Paint or coat foam for best results in outdoor applications. Read Less
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7 answers

Can this product be used to seal area behind electrical switch plates

This question is from 24 oz. Gaps and Cracks Insulating Foam Sealant
Asked by
Uncle Rick
Fort Collins, Colorado
January 5, 2013
My log cabin has many outside wall outlet and switch plates. I have cold air coming in from behind the covers. Can this foam be used to fill the void behind the electrical outlets and covers
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Answers (7)

Asked by
Cambridge, MA
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October 6, 2014
Answer: 
Yes, they make a fireproof version as well if that will make you more comfortable
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Asked by
West Tennessee
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December 30, 2013
Answer: 
I did.
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Asked by
Houston, TX, USA
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September 21, 2013
Answer: 
It states that it has fire-retardant and has an orange color of the fire-retardant foams. I used it to seal around my electrical boxes. I would read the can to be sure.
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Asked by
Kingman, AZ, USA
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June 4, 2013
Answer: 
Definitely. Any outlets we have that had an opening large enough to insert the foam have been sealed with Pro and we have no air coming in.
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Asked by
Birmingham, AL:
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February 19, 2013
Answer: 
If you had access to the space behind the outlet and switch boxes, such as a gap between the box and wall for the straw, it might help some. You cannot allow the foam to enter the inside of the box where the switch and outlet are located. An easier to use solution would be to purchase the pre-cut foam insulators that are installed simply by removing the face place, placing the insulator on the outlet or Read More
If you had access to the space behind the outlet and switch boxes, such as a gap between the box and wall for the straw, it might help some. You cannot allow the foam to enter the inside of the box where the switch and outlet are located. An easier to use solution would be to purchase the pre-cut foam insulators that are installed simply by removing the face place, placing the insulator on the outlet or switch, and replacing the cover. Use caution because there are exposed live electrical terminals on the sides of the outlet and switch. Read Less
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Asked by
Read all my Q&A
January 9, 2013
Answer: 
You should not inject this foam inside your electrical boxes where your outlets and switches are mounted. This is against code. If you can inject this product behind or beside the electrical box (not inside) that would assist with sealing your leak, as the air coming through your outlets and switches is first coming through your wall and into your electical box. The product you need for sealing the front Read More
You should not inject this foam inside your electrical boxes where your outlets and switches are mounted. This is against code. If you can inject this product behind or beside the electrical box (not inside) that would assist with sealing your leak, as the air coming through your outlets and switches is first coming through your wall and into your electical box. The product you need for sealing the front covers is a thin preformed foam gasket designed to go behind your covers. If you search the internet for "electrical outlet sealing gasket" you will see the product that would be approprate for your application. Read Less
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January 7, 2013
Answer: 
GREAT STUFF™ foam can be used to air seal around and behind electrical boxes and insulated wires, but should never be used inside a box where it may be exposed to bare copper wires.
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6 answers

Does this dry rock-hard?

This question is from 24 oz. Gaps and Cracks Insulating Foam Sealant
Asked by
Las Vegas, NV
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February 8, 2015
I need a foam that will act like a seal and one that I can put a hook into which will be permanent and strong enough to hang. Yes, it's an art project. Think of a picture which I need to put a foam across the back to hide the tape, wires, glues that hold together the montage of mementoes on the front of the picture. Then I need to be able to put a picture hanger in the foam which will be permanent and I can use to hang the picture. Would this stuff work? If not, any ideas? I thought there might be something in car repair that might work, but what? Thank yoU!
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Answers (6)

Asked by
Massachusetts
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Home Improvement Profile: DIYer
September 15, 2015
Answer: 
Dear Mayran: If you are still working on this art project, I hope you did not try Great Stuff! The cured foam is light and has very little strength. Great Stuff also expands quickly and would create a lumpy, uneven surface.
Not knowing how your art piece is constructed, it would be better to attach a piece of wood to the back to mount the picture hanger -- attached with screws or epoxy. To hide the Read More
Dear Mayran: If you are still working on this art project, I hope you did not try Great Stuff! The cured foam is light and has very little strength. Great Stuff also expands quickly and would create a lumpy, uneven surface.
Not knowing how your art piece is constructed, it would be better to attach a piece of wood to the back to mount the picture hanger -- attached with screws or epoxy. To hide the tape, wire etc., I would mount the piece in a deep frame with a backing board.
I hope this is helpful,
Mark Read Less
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Asked by
tahlequah ok
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May 12, 2015
Answer: 
it will dry hard but i don't think it will get rock hard win it sets up its not going to move
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Asked by
Corsicana Texas
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March 25, 2015
Answer: 
Interesting!
This foam does set up pretty firm. I think it would hold a picture hanger type attachment as long as the picture was not too heavy. The problem you may have is that it can be very messy to work with.
I would try it!
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Asked by
Portland OR
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Home Improvement Profile: DIYer
March 10, 2015
Answer: 
This product does not dry hard enough to support an art project; the foam is more open than closed cell.
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February 9, 2015
Answer: 
GREAT STUFF™ Insulating Foam Sealant products are an air sealant barrier for gaps and cracks. While the product does cure into rigid foam after 8 hours, this product does not offer any structural support. Use of this product in a way that it is not intended is considered experimental and would be at your own risk. Based upon the application details provided, we are unable to recommend a product to use.
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Asked by
Severn, Maryland
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Home Improvement Profile: DIYer
February 9, 2015
Answer: 
Sure you can do this......it is very strong,,,,,,,,and if you want to remove a mistake, just use a nap covered with Tinner immediately and everything will be fine.....and if it is too late & already hardened, just use a very fine cutting knife......and you will be off from any problems.....
yours sincerely
Dominique Rens
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5 answers

Does this have the same formulation of foam as the bright orange Great Stuff Fireblock 16 oz cans with the straws?

This question is from 24 oz. Gaps and Cracks Insulating Foam Sealant
Asked by
PA
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June 3, 2014
I notice that this foam is described as being orange and also having a "US fireblock rating." It makes me wonder if its the same formulation as this product: http://www.homedepot.com/p/GREAT-STUFF-Fireblock-Insulating-Foam-Sealant-16-oz-345372/202023037
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Answers (5)

Asked by
Massachusetts
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Home Improvement Profile: DIYer
September 15, 2015
Answer: 
Dear Dan:
The "Fireblock" version of Great Stuff does not include any fire proofing ingredients. All Great Stuff products will ignite at just 240 degrees F -- significantly lower than the ignition temperature for wood studs. In other words, Great Stuff Fireblock will catch fire before your wood does.
The "Fireblock" label refers to the foam's ability to block smoke. It will not block the spread of Read More
Dear Dan:
The "Fireblock" version of Great Stuff does not include any fire proofing ingredients. All Great Stuff products will ignite at just 240 degrees F -- significantly lower than the ignition temperature for wood studs. In other words, Great Stuff Fireblock will catch fire before your wood does.
The "Fireblock" label refers to the foam's ability to block smoke. It will not block the spread of fire, as the DOW rep incorrectly noted above.
The key advantage of the large 24 ounce 'Pro' cans is improved output with a Pro gun vs the plastic straw. Justin Fink at Fine Homebuilding published a detailed study, and here are the numbers:
Gun yield: 83 cubic inches per ounce
Straw yield: 69 cubic inches per ounce
Most important, spritzing the expanding foam with water boosted the yield by 73% (gun) to 92% (straw). The numbers above include this water treatment. Great Stuff foam requires water to cure, and pulls water vapor from the air. A light spritz of water improves the yield, accelerates the cure and reduces voids in the cured foam.
I hope this is helpful.
Mark Read Less
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Asked by
Severn, Maryland
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Home Improvement Profile: DIYer
February 9, 2015
Answer: 
Yes....but it is easy to cover it with a layer of painture
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Asked by
Wentzville, Miisouri
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November 2, 2014
Answer: 
Yes, the 24 oz. Gaps and Cracks Sealant has the fire-block rating and the orange color
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Asked by
Read all my Q&A
October 6, 2014
Answer: 
yes
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Home Improvement Profile: Other
June 5, 2014
Answer: 
As the first foam sealant to be recognized as a fireblock, GREAT STUFF PRO™ Gaps & Cracks inhibits the spread of flames through concealed spaces. It’s a minimal-expanding, single component polyurethane foam sealant for general purpose building envelope air sealing. It fills gaps up to 3" (75 mm) and expands to take the shape of cracks and voids, forming a permanent, airtight and water-resistant bond to Read More
As the first foam sealant to be recognized as a fireblock, GREAT STUFF PRO™ Gaps & Cracks inhibits the spread of flames through concealed spaces. It’s a minimal-expanding, single component polyurethane foam sealant for general purpose building envelope air sealing. It fills gaps up to 3" (75 mm) and expands to take the shape of cracks and voids, forming a permanent, airtight and water-resistant bond to vinyl, wood and metal surfaces. Read Less
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Customer Reviews

Rated 4.5 out of 5 by 41 reviewers.
Rated 5.0 out of 5.0 by Good gear! Works awesome with the application gun. You can start and stop as needed, un like the cans of great stuff. June 28, 2016
Rated 1.0 out of 5.0 by Twice the Price!? This is $0.52/oz. plus a gun is needed. The throw away can is $0.25/oz., less then half the cost and no gun is needed. The only advantage I can see maybe is if you use, small amounts of foam several times during a week or month. It is fairly easy to start , stop and save a can for later. May 30, 2016
Rated 5.0 out of 5.0 by Works as advertised Works just like expected. Great for sealing attic penetrations for air tight seal. January 26, 2016
Rated 5.0 out of 5.0 by Better than expected! Bought this foam to seal up where suspected mice were getting in... Sealed GREAT and no more mice! March 25, 2015
Rated 5.0 out of 5.0 by Sticky Stuff - Wear Gloves! Used three cans to seal all my cracks, crevices and conduit runs in my attic before I added insulation. You better wear gloves and clothes/coveralls you don't mind getting it on. It sticks to everything dry and won't come out. I highly recommend purchasing the gun to control the flow, and allows you to keep the can connected to the gun without the foam hardening for a couple weeks. January 24, 2016
Rated 4.0 out of 5.0 by Better than the cans with a straw This requires the foaming gun which has a significant price tag but the ability to save unused product and control the application better makes it worthwhile. The foam is good at it's purpose - just be sure to wear the protection they mention. It will not come off once cured. December 29, 2015
Rated 5.0 out of 5.0 by Bang for your buck! Although you have to purchase the applicator gun, it's well worth it. Get together with your neighbors to share in the expense of the gun. One can goes a long, long way. December 8, 2015
Rated 3.0 out of 5.0 by incomplete Did not include the nozzle to spray the foam. I went to Wal-mart which was closer to my house to pick up a cheaper version since this would have been the 3rd time I would have returned to Home Depot on the same day. November 10, 2015
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