GREAT STUFF PRO Gaps and Cracks - 30oz Fireblock Foam Insulation Sealant, Pack of 12. Closed Cell, Polyurethane Expanding Spray Foam. Seals & Insulates Gaps Up to 3". Applicator Gun Not Included

Used them with an xl gun to fill in hollow doors for sound proofing purposes. While I did not measure actual decibel reduction, it is clear that sounds from other rooms are now muffled. While not perfect, much cheaper than replacing 8 doors to solid doors and good enough. The doors are also a little heavier which gives them a nice feel while opening and closing. Used a little over 1 can per door.

Lot more foam to use!

I purchased this solely because of the 30oz cans. I needed to fill a lot of cracks in prep for insulation. These cans last damn near forever. It expands and seals fairly well. It's good for what it does and the large cans work well.

Used it to seal edges of 2” blue foam insulation in my garage walls. Worked perfectly.

I bought this product and had some bad cans right away. The seller sent me a new case free of charge, only problem was the weather was no longer good enough to use it, so I had to wait. Life happened and 2 years later after storing the new case in my climate controlled garage, I finally was able to get to sealing up my shop. The first can didnt produce anything, then the second can barely trickled out. I didnt try any others, but instead contacted the seller. The seller replied and told me this sealant expires after one year. Nowhere on the box, the cans, or the listing does it say that. I wasted a lot of money on this and will not be buying any more in the future.

Liked the spray foam, it's great for insulation small areas and sealing it tight

Adhesive for our product line.

It's made in USA and it's very good quality. Really like this product. Excellent control.