Features:

  • N/A
  • Made in US
  • Black foam designed for use in water features, blending in with rocks and shadows
  • Water resistant sealant to help direct the flow of water in waterfall, pond, & streambed construction
  • For use in landscaping as a foam filler, sealer and adhesive
  • Application in damp or dry conditions; cures in 8 hours
  • Safe for fish
Great Stuff Pro is the real thing

Hi, in addition to being a homeowner DIYer, I have several BPI certifications and teach residential and commercial energy conservation, which includes air sealing and insulation. If you are considering using mono-component foam for more than one very small job, be aware of a few related facts. Firstly, mono-component spray foam expands very little, no matter what kind you buy. If you need more expansion, you have to get a bi-component product such as Tiger Foam (to spray wall cavities or rim/band joists). Secondly, the spray bottles you buy at the Home Depot should be used all at once and not stored for a long time before using or they get clogged. This is true even for the ones rated "reusable". Thirdly, these products are typically not fire-rated. Dow Great Stuff Pro needs its own dispenser gun. You can get the least expensive of the 3 which costs around $30 and will last you a long time if used correctly. Hence, this product is more expensive at the beginning but it has the following advantages: the foam is fire-rated; MUCH better dispensing control in terms of bead size and consistency; no overspraying when you release the trigger; the same bottle can officially stay on the gun for 1 month but users report that they are having no problems after 6 months. Two final points: spray foam is the best air sealer and insulation on the market but is expensive. For larger jobs such as open wall cavities, consider laying down no more than 1" of foam first and then adding much less expensive bat insulation on top of it. Do not underestimate how wickedly sticky this stuff is. DO NOT get it on your (good) clothing, skin, hair, glasses, etc or else. I found that Amazon is the right place to get foam and gun in terms of price and availability. This foam cures with the moisture in the air. In dry weather, moist (not soak) the cavity you want to fill with a light spray of water before applying the foam. You will get twice as much expansion and no voids.

Really Works

Great Stuff foam really works. I pulled mouse-filled fiberglass insulation out of my basement today and used the Great Stuff foam to seal the entry points. I'm ordering more to complete the job of insulating the upper perimeter of the basement. It hardens very completely--I don't think mice could chew through it. The foam gets into cracks and holes batting insulation won't. It filled some massive gaps very effectively--do those when the can is new and squirting most enthusiastically. The foam is easy to control and apply only where you want it. These cans go a long way; good bargain for the price, good value for the quantity. The applicator gun you need to buy to use these large cans seems a bit pricey (about $35) but is necessary and works well. None of it was very heavy to use. The applicator gun did not clog though sometimes I had such a gob of orange hardening foam on the end I couldn't see how it could possibly continue to work, but it did. Downsides--the applicator gun doesn't extend very far so it was hard to reach into narrow spaces. The can itself sticks out awkwardly and has the same disadvantage. The can will spray upright or on its side, but not upside down, so it was hard to get into some areas by the ceiling between the joists. The whole process is messy and sticky. Wear disposable clothing, if you can, gloves and goggles. Added 5-11-2012: Just used a can that was partly used and left attached to the applicator gun for about 6 months, worked great. Not clogged at all and the foam worked perfectly.

Excellent - this really is "great stuff" and I will be using this moving forward.

I have used a lot of the "pro" expanding foam and I think this is the best of the bunch. I thought I would be put off by the orange color but actually it helps to see where you have put it. I found the application a little better than most other options - seemed easy to control and had good adhesion when installing on vertical services. Also the hardening time was about perfect. Didn't have any problems with this in the gun. I also felt like I got excellent usage out of this - I was able to make use of the entire can and I think I got just about every drop out before having to switch to a new can, and I had pretty good application all through the life of the can. I'm glad I bought a case of these - I'll probably stick with this unless someone shows me a truly better option but I'm not even sure what that would be.

Literally, Great Stuff!

This stuff is a dream come true if you like to build Paludariums or Vivariums. I love the versatility I have with it and have found it really enhances all my designs.

This formula makes a gun worth owning!

Short version: I love, love, love this stuff. I use it instead of Liquid Nails for glueing together lumber, glueing polyiso foam board insulation to plywood, drywall to lumber, and instead of the "Gaps & Cracks" spray foam for filling gaps and cracks. It sticks to darned near everything (including me!), has an extremely aggressive adhesive (it takes 3 days to wear off my skin), and a very strong bond. Background: I'm a DIY homeowner and I just ripped the siding off my house, added 6" of foam board insulation, and then resided it, with a side dish of all new windows. I used this foam extensively throughout the project with great results. Things I've noticed while working with it: This Wall & Floor formula expands less than Gaps & Cracks. I had no trouble using this along door framing and it didn't cause the jamb to warp. My theory is that so long as there's air space to expand into, it will expand there. I have a can of Door & Window foam but haven't used it yet, because using this (which is on my gun already) has not caused me any heartache. The working time is comparatively SHORT! Like 15-30 minutes. This is a double edged sword. The fast curing is convenient when filling gaps and cracks. However, I was installing two layers of foam and while working my way across a wall, the foam could harden before I got the second layer on, taped, and strapped to the wall with furring strips and 9" screws. I found myself making more cuts in advance, testing fitting, and then re-assembling all the layers and foaming as I went. Compare that to Liquid Nails, which I usually open a giant (28 oz) tube of, and leave open in the caulk gun all day, since its cure time is 24 hours.

For Vivarium and terrarium builders, as well

I used it to build a background in a 10 gallon vivarium using the instructions from various forums. I sprayed this on the back of the glass, let it dry, applied a layer of aquarium safe silicone, and pressed cocoa fiber into it. It worked exactly as instructed, and the end result looks great. I bought 2 cans, but only needed 1 for the 10 gallon. I'll use the other can on the next one.

Believe it or not - used on a travel trailer, where it's GREAT as a belly sealant

I had to drop the belly cover on our travel trailer to install heat pads on the black and gray water lines (manufacturer had put tapes on the tank-end of the lines but not the end where the drain valves were located, and it looked like we would be living in the trailer for a couple of winter months while house-shopping in Idaho and Washington). The openings around the drain lines where they exited the belly cover were filled with something that looked like pond sealant - essentially, polyurethane foam that appears to contain carbon black for UV resistance. I don't know if GREAT STUFF Pond & Stone 12 oz Insulating Foam Sealant is the exact product used by the manufacturer, but it appears and functions exactly the same as the OEM sealant!!! The places I "foamed closed" are still sealed after almost a year of hot (+90 deg), cold (10 deg), rain, and snow.

Fills those holes; wear thick gloves and long sleeved shirt!

This stuff works great for filling those holes and attaching small features to our pond or what have you. It expands for a while after you spray it, so you might be trimming it back after it hardens. Hard learned tip: wear a long sleeved shirt you don't care about and sturdy gloves (not the thin surgical kind), because once this stuff gets on your skin, it's reeeealy hard to get off. I wore gloves and a short sleeved shirt but ended up leaning my forearm into it, and it took me almost a week to completely get it off. Keep away from your phone too - don't ask.

Love, Love

Love, Love, Love. Used this and window on my kitchen renovation in wicked old home. Used a IR viewer to spot cold air leaks and killed them dead with this and the pro gun, which is amazing. With this system you don’t have to use a can up in one session. You can leave this on the gun for a week or so, but clean it well for long term storage or you’ll find yourself dismantling the gun for an hour long session.

clean valve & tube with solvent to be able to use a 2nd time

Used to to fill in a large void in a pine tree to protect from further water/insect damage. Perfect for the job. I barely used 1/3 of the can so I cleaned out the tube and top valve to be able to use it again. Gun scrubber spray solvent works great to clean the tube/valve. From past experience I know you couldnt use it again if the contents has a chance to dry in the valve and/or tube.

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