Great Stuff343087 PRO 26.5-Ounce Construction Adhesive, Each

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.

Used to install new plywood to polystyrene foam on a motorhome. It worked well in some spots, not so well in others. Could not discover why there was only partial effectiveness, maybe the recommended coverage is unrealistic in practical application. Fixed it with Gorilla Heavy Duty Construction Adhesive, which worked so well I completed the install using it instead.

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.

Maybe this works better with wood or something but it absolutely did not work for PVC inner foam ceiling tiles. I did two on my bathroom ceiling with this and if you want to sit and hold pressure on the whole tile it would EVENTUALLY stick. Not impressed and had to use A LOT to get it to hold. Went and grabbed trusty PL power grab and did not have this issue. Will not be purchasing again. These tiles are VERY light.

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