GREAT STUFF PRO Construction Adhesive

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.

This foam glue works great! I have tried Liquid Nails and a Landscaping Adhesive to get styrofoam insulation to stick to metal. Both failed miserably. I just sprayed this Great Stuff on the foam and pressed it on. After letting it dry for a few hours I closed the overhead metal doors. Today I opened them up and I'm thrilled to say it works! Remember, to reinforce this w screws etc. if you use it for floor joists etc. (prevents future floor squeaks) By theway, I estimated I would need three cans but I'm still on my first.

It is much cheaper than caulk to adhere foam board to cinder blocks. Almost did my whole basement with one can. Wish is it would stick/adhere faster but after it cures it is solid. Used a combination of caulk and foam to get the job done. Also used some 2x4s to hold the foam board while it cured. Using caulk only would have been way to expense.

Wasn’t my first choice but really came through and works great. We are using it putting together ICF forms, a little goes a long way!

This stuff will make a bond stronger than a screw or nail. Just be sure to have your wood positioned exactly where you want it because once it reacts and cures, there’s no pulling it apart again and trying to redo it. This stuff is permanent

So far I’ve laid 16 sheets of 4x8 OSB 16”oc and am still on the first can. It goes down so much easier than squeezing liquid nails from a tube. For small projects, it’s probably overkill, but for a contractor or if, like me, you’re laying over 1000 sqft of new subfloor in a renovation... it is hands down the way to go. Gun is easy to clean using the foam gun cleaner. As long as you store the can attached to the gun, you can use as much as you need and then leave it to be used later.

I ordered a can of this to test against the adv***ech product. When I opened the can it had already oozed out a little, which may have meant it was a bad can but I had to use what I had, what they sent me. I picked off the dried chunk and did a test set of blocks glued to adv***ech subfloor. Thisl peoduct worked okay. Stayed slightly spongy and held okay, then broke off clean leaving the 2x4 almost completely clean and undamaged with the glue on the subfloor. The OTHER product dried to a rock solid state, held extremely tight and did not fail. The purple glue actually held better than the subfloor and took chunks of floor with it when I was finally able to break it off. I guess it worth the money after all.

This is my new panel adhesive. I don't hang much drywall but this would be the product to use as the bead can be as thick as you need it. I attached 1/2" ply to drywall and was very impressed with the set up time and strength.