GREAT STUFF PRO Gaps and Cracks - 24oz Fireblock Foam Insulation Sealant, Pack of 12. Closed Cell, Polyurethane Expanding Spray Foam. Seals & Insulates Gaps Up to 3". Applicator Gun Not Included

Compared to the disposable cans with straws these are much better. The gun orientation makes it easier to use for me including getting into corners. These contain twice the product as those disposable cans and you can actually re use what's left later which is virtually impossible with the other cans. It does require the applicator gun and your also going to want a can or two of cleaner but it's worth it for the reusability.

Much better than the cans, they go much further. You can keep them in for more than a month, several months if it's cold.

Really good stuff

This is used with a gun and you get a lot more foam for your buck than the individual cans with the little straw applicator. The are fine for a once and done job. If you have to foam a lot, buy the gun. Be sure to buy a can of cleaner of it will ruin you gun after sitting a day or so. Remove the can from the gun. The can will spew out a little foam. Use the red spray cap on the cleaner to clean out the excess foam from the can. Now clean off the excess foam from the gun connection point and the tip. Finally, attach the cleaner can to the gun and spray until clear. Remove can but do not spray out the cleaner left in the gun. It is under pressure and will continue to clean. Store in an outside location as the cleaner will slowly seep out and smells.

It works great as a gap filler. If your looking to do a spray on application this is not great stuff. It will not stick by itself. If your looking to fill gaps and cracks it is great stuff.

Only works with a great stuff gun

Hard to beat the price on this foam straight from Dow. I bought two cases for a remodel and love the stuff! I recommend buying multiple applicator guns because they don't last. Found some for about $15 each on the web (bangood) and just threw it away after spraying about 5 cans of foam. The 24oz cans seam to cover about 3 times as much as the cans with a hose. I covered every seam on the walls and roof sheets and lined each side of every wall stud, including every TJI floor and ceiling ijoist with about a case and a half! Also read that using this foam around the TJI joist and at the ends in the brackets increases the TJI holding strength by 4 times! This stuff is a sticky mess when applying so plan to where throw away clothes, but after it dries (overnight) it is much easier to remove any excess by just breaking it off.

I'm working on insulating parts of my house and this was a great deal. Thankfully, all the cans arrived intact and there weren't any issues. Each can worked perfectly. If you have a large project in front of you, I recommend this!