Customer Reviews for GREAT STUFF 16 oz. Gaps and Cracks Insulating Spray Foam Sealant with Quick Stop Straw

I’m sure as a product it probably does fine, if you get it where you want it and not everywhere else!! Completely useless applicator (straw). It doesn’t tighten in the can so you get it all over your gloves, plus it drips and falls everywhere. Ruined my hoodie. It was a work hoodie, but not the point. They used to have good straw applicators but the ones now are complete crap. I’m pretty confident it’s so that you end up buying the Pro version. I wish there was an alternative

Always have been thrilled with this product in the past. Noticed that the 16 oz option has an improved application straw that can be closed and reopened. Fantastic I think. So I use half the can and carefully clean out the straw and the very top of the can where the product comes out. Fast forward to replacing the trim around my back door and I grab this can to prevent small bugs and creatures gaining access to my house. Go to use the can, product somehow resealed itself even though I had cleaned it completely. Honestly I was disappointed but not surprised. So plan ahead and use the whole can because you can't save it for later. Learn from my mistakes.

I found way to remove this from vinyl siding after it's cured and hard. Use Citristrip orange paint remover. Put it on thick and let it set 15 minutes. Then take a wire brush and Brilli pad to it. Takes some scrubbing, but.it does come off.

Worked perfectly for our project!

Trigger snaps off easily with end of straw. Too weak. Cant fix.

I'm not a contractor so I bought Great Stuff in this DIY container to seal up cracks in my garage walls before insulating. As others have said, the nozzle is extremely difficult to use; the foam either barely comes out or it splatters all over the place. I was glad I was wearing a tyvek suit. Plus, as I know from past use, if you stop partway through a project and don't use the whole can right away, the nozzle seals up and the can is useless from then on. So I bit the bullet and went back to Home Depot and got the contractor-grade Pro Gun, and containers of sealant and cleaner. What a world of difference!!! The flow from the gun is finely adjustable and easy to set up for exactly the amount you want. Plus, you can leave the gun on the can and use it again and again, for up to a month. Unless you're on a very tight budget or are much better at dealing with frustration than I am, skip a few lattes and put the money toward buying the Pro gun; the job will be much easier and much more enjoyable.

The foam sealant works great and closing up the gaps from running copper pipes through the wall in my garage. I used this same brand but specifically for windows and door jambs recently and it is fairly easy to use. Can be a dirty job if you use too much foam. The foam continues to come out for about 2 seconds after you release the trigger. So it's best to release early before you want to end.

I sealed a couple of cracks and holes in my basement and everything worked great until I decided to stop and keep it for the next project. It just never stopped, it's in my garage now and it keeps coming out, I see a big blob of gooey stuff already and I am a bit worried that It will fill up my whole garage and I won't be able to open the door in the morning.

Take the straw off and you have a full blast substitute for a spray foam kit. 40 cans completely air sealed my attic and cost half of what the smallest froth pack costs.

For context Im a diy’er with no prior experience with spray foam. We moved into an older house which had gaps and holes internal to the house that were letting in pests and mice. So I turned to spray foam as the solution for larger gaps where caulking wouldn’t work. I started by buying 3 cans of this stuff. Let me tell you, it’s a nightmare to work with. Why? 1. The product comes out so quickly it’s difficult to control. You end up spraying way too much then have to spend a lot of time cutting extra. 2. Because of #1 is gets all over the place. Your hands, floors, clothes...really anything around. 3. The screw on spray tube is defective. With all three cans, the product began leaking out of the underneath of that screw on spray tube. 4. Some cans barely worked at all. One I got one spray out of before it jammed up and I threw it away. Overall this product is terrible. I gave up on GreatStuff and went and got a few cans of Loctite Tite Foam. Solved every problem above. Easier to control the spray, easier to clean up, and no leaks out of any of the cans. From my experience, vastly superior product. Having said that, in fairness, i have no results yet on which is more durable. A few tips if you’re like me and want to use this stuff: * use caulking wherever possible before turning to this * It expands, a lot. You can always add more so use lightly. * Spray foam is flammable. VERY. If I had known this up front I would have gone a different route all together. * Make sure you have plenty of disposable gloves. * Keep lots of paper towel around and a few wet rags to clean up. You’ll definitely want to wipe up overspray. * Get some acetone if you’re going to want the finished product to look nice. I didn’t care about that for where I put it so I didn’t bother. Good luck.

I used this to fill in the gaps around a wall-mount AC unit, so that I could tile around it, instead of using regular moulding. Worked out great.

Needed to eliminate vibration before I close up the wall for my home Music studio. Did what it was designed to do.

I try to seal around items in my attic and if you just slightly pull the trigger it flows out like a dam broke. It didn't stick so once this crazy amount of foam dried it just brushed away so not sealing any air leaks in the attic.

I love Great Stuff foam and I use it for a lot of insulating projects. That 'Quick Stop Straw' though has to go! It keeps getting bumped closed when sticking the straw into whatever crevice you are insulating. Then you have to snap it back into the open position. That's bad enough, but in the meantime pressure has built up and when you open it, it splats uncontrollably everywhere. Ughhhh! By the end of the can it is majorly bunged up and won't move so I had to cut the end off to finish what I was doing. Foam is great, straw is a total fail.

Great Stuff should be called Worst Stuff, you get your room all painted try to get the cracks filled before putting up molding and the spray nozzle blows off and splatter all over the walls, so now a repaint has to be done. UGH!

Insulated my Whole house using 2" Owens Formula 250 Foam Board. Much better than Fiberglass BTW. Make Sure you use Latex Gloves cause it will stick to your finger tips for a week or better. Awesome for insulating and sealing cavities. I noticed Home Depot is the Cheapest too!

Fills the gaps!

Nice product although it does take time for it to set unlike the old ones that would set up so fast you could not keep up with it!! The other thing to remember is that this stuff continues to grow like the blob. SO IF YOU DON''T THINK THERE IS ENOUGH IN THE AREA GIVE IT A FEW MINUTES!! .A good tip from a Home Depot associate - Keith McCaslin which turned out to be a nice trick was to cover it with box tape to keep it from getting all over what you might be mounting over it. - WE WERE PUTTING UP A MICROWAVE - PICTURE BELOW - AS YOU CAN SEE IT STILL GREW PAST THE TAPE - SO GO EASY AND A LITTLE AT A TIME......

The Quick Stop Straw worked great. Used a good portion of the product on a project, came back more than a week later and was able to use the remainder of the product just by reopening the straw.

Easy to use, but needs pre-planning & quick action, because can be used only once, afterwards, it seals itself (there's a warning about it on the label). Dos the job - seals cracks, gaps, but If left uncovered/unpainted, can be peeled off very easily (problem with young kids messing with it & just peeling the dried foam off with their fingers).

Works good. I filled a big gap underneath a sliding patio door, from the outside. It's not the prettiest fix, but it's totally effective. Stops all the cold air from seeping into the house in winter. This stuff can be tough to work with. Very sticky, and hard to remove, if not impossible. I wear disposable rubber gloves when working with the stuff because it will also stick to your hands like you would not believe.

Works great. Just trust that its going to expand like it says and don't spray too much. Its easy to trim excess when hard. Make sure you plan ahead as once the spray solidifies in the straw, thats it, you'll have to buy another.

Hello all: We used Great Stuff foam on a number of projects, and it is a great solution to seal gaps and cracks, seal the edges and joints in XPS insulation board, fill the hard-to-get-to spaces around HVAC ducts, etc. Here are a few tips: (1) Installation: Great Stuff is a one-component foam and cures by pulling water vapor out of the air. You can double the expansion by spritzing a little water on the surface before you spray the foam, and misting some more water on the foam after you apply it. Start by testing with a ball of foam on a piece of cardboard at your home / job site. (2) Foam board: Great Stuff is ideal to seal the edges and joints in foam board, e.g. if you install XPS foam board from Home Depot in your walls or between the raters in your roof. A photo is attached of a recent project, where we installed XPS in the walls of a house on the Cape in Massachusetts, and sealed everything with Great Stuff. (3) Windows and doors: Make sure you use the "Windows and Doors" version of Great Stuff to seal and insulate around windows and doors. The low expansion rate and flexibility of the cured foam are essential. (4) Fireblocking and hot surfaces: Cured Great Stuff foam will ignite at 240 degrees F -- including the "Fireblock" version. This is significantly lower than the ignition point for wood studs. DO NOT install Great Stuff next to any hot surface, e.g. a furnace, hot HVAC ducts, canned ceiling lights, a fireplace or chimney, etc. Rock wool and 3M fireblock sealant should be used in hot areas; both are available at your Home Depot. I hope this is helpful. Mark

This stuff is a God send once you get the hang of it. I live in rural VT and have used this on an old mobile home and a 200 yearold cape. If I listed all the uses I've found for it, you'd stop reading because the list is too long. It came in very handy to fill 1-2 inch gaps between 200 yo outer planking, so that we did not have to ruin the history and waste good wood to cover it with plywood (see pics) Messy? YOU BET- wear gloves and clothes you could throw away if needed. If it drips on you or anything else WAIT UNTIL IT DRIES then it usually picks right off. Ladies, even polish remover does not get this off your nails-wear gloves. Expands too much-Yes, use common sense, and read the label, if you need a product to fill where that is an issue, this is not it. HOWEVER- if you need a flat surface where you have sprayed it, just trim it off with a hand saw, or any serrated tool. I've used a tiling trowel, and a kitchen knife, to name a few. Using it overhead- get as high as you can, keep the can as vertical as possible and carefully bend the tube upward rather than laying the can horizontally. DON'T break the tube off or it will burst out all over you. Reusing a partially full can- for short term, a day at the most, stick a nail in the tube right after you finish, galvanized nails will pull some dried product out with them so they are good. For long term- use a sheetrock crew and drill it in there, you will have to drill it back out, but it last for months.. Make sure your nozzle is tightly screwed onto the can or it will dry out there.

Sprays out of can too fast and too powerful causing too much over pour so that it clumps up in places. You cannot apply this stuff evenly making the finish look very ugly. It also doesn't stick to surface fast enough so that it drops off ceiling application and also drips down the wall when applied vertically. As you can see in the picture, this stuff falls off the ceiling before it can be applied. This stuff must be applied only downward if using it too seal along edges and even then it fills up too fast. About all that it is good for is filling up large holes and big cracks. If it came out of the can slow and steady and would stick immediately, it would be a better product.

Purchased to seal cracks where yellow jackets were making nest in chimney chase. Product did not come out of nozzle nor trigger straw. Product seeped out base of nozzle, like a slow flowing volcano. I used some polystyrene board to smooth product as best I could over cracks. Sealed 1/2 of the first eight inch crack. Top of can sealed close so I could not finish job even though I had prepared all the cracks I wanted to seal. Back to the drawing board for me.

In the past 6 months, I have purchased at least 2 cases of this foam. The expansive and sealing properties of this foam are incredible. I've used it to seal up drafty holes in the house, around leaky air ducts and inside new walls to keep moisture and insects on the outside. I've learned a lot about this foam and have some tricks I hope you can use. ALWAYS shake the can well the first time. The foam really does tend to settle in the can and needs to be remixed for best consistency. Make sure the trigger is tightly secured. I even check it from time to time as I use it. Be light on the trigger, especially the first time. There is a lot of pressure in that can and it the foam will escape faster than you'd probably like it too if you squeeze too hard. Try not to let the foam weigh itself down. It will start to drip and fall if you get too much in one section. That's when things get messy. If you have to, wait for it to start setting up a bit and then spray some more to fill in the remaining gaps. Get the nozzle as deep into the crack as you can. That way the foam really fills up the void from the inside out. Once dry, the foam can be cut easily with a sharp knife or razor blade. I have used it as a backing for caulk or even putty before and then sanded and painted over it. If you don't use the whole can, clean out the nozzle and store it. It can be re-used later.

Having used another variation of this Foam Sealant for larger cracks in a children's playhouse built for pets, I had hoped this would work for a gap in a patio frame. My purpose was to keep out water snakes and to deter brown spiders. It sealed the gap, but I made a mess doing it. After attempting to cut it down I found entire pieces were coming out. I left it messy to make it through the rainy season. I have mixed feelings about using this on the patio again. I would look for something that could be controlled to fill a targeted gap and not explode, up and down, in the hollow metal patio frame. I'm in the process of re-screening the patio, as my bad job in the photo shows. Mistake on my part for what I wanted to achieve, but it did the job, no snakes. It did not explode like that into the patio, which is good, because my pets would have eaten it.

We have a group making a model of the mouth and used this insulation to make the gums. It was great because it had the texture and consistency we we're aiming for :)

This garbage product has the most useless applicator I’ve ever used. The nozzle won’t tighten so every time go to spray some it untightens and starts to spin towards you! What garbage is this? Fix your product.