Customer Reviews

Dow Great Stuff Pro Gaps & Cracks 24oz Gun Foam 341557

5 star:		(7)
4 star:		(1)
3 star:		(0)
2 star:		(1)
1 star:		(0)

 

 

Don't bother with the plastic straw cans if you need more than a couple. Great Stuff Pro with the Pro Gun 13 (or any Pro Gun) gives much better control over the foam bead. When the trigger is released the foam stops - no more foam oozing out after you want to stop. One can goes a LONG way.

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.

I love spray foam.
This, combined with the pro handle make spray foaming so much neater and more accurate. You can also easily stop mid-can, which is great.

This stuff is great. I've been using the consumer grade of this stuff for a while now, but this plus a dispensing gun I bought brought everything to a new level. Now I don't have to worry about the stuff coming out after I've stopped squeezing the trigger.

Hi everyone,

The people at Dow Chemical know what they are doing. This will work with your Dow Pro 15 Dispensing Gun.

Enjoy Everyone,

Thomas

Don't mess around with the stuff you get at the big box stores. Spend the extra money on the gun and the pro cans.

No this product is not GREAT. The idea behind this can is that it is installed on top of the PRO gun dispenser and it should be useable for multiple applications without losing or throwing away the unused product inside the can.
This did not happen for me. I shot one can to empty. That was fine. The next can started having problems. I don't think I ever got it emptied. The third can is still on the gun and for the most part is completely full. The foam has solidified inside the applicator tube and has rendered the tool useless. I have always used acetone to clean my expanding foam dispensers without any issue. I could use and reuse the cheap "o" cans with success. I used a whole can of acetone spray on this tool and still have failure. I do not recommend this to anyone. The only way that I would try it again is if someone gave me a can of the "cleaner" and a new "Pro Gun" to start with. The old (used twice) PRO gun is useless now regardless of what I try to clean it with.

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.

I've used it in the past,but could no longer find it in our area so I went to amazon and got it at a good price