Fiberglass Supply Depot 4 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)

Product works great. It takes some trial and error to judge the right amount to mix because it really expands. It’s easy to cut away any excess

It arrived broken, but they replaced it. I give it 5 stars because the product is super good for my boat; it's excellent. Thank you.

Excellent

Works great , quick set up and easy to use

Just follow the instructions and the product will do its job. It gives you just enough time to mix and pour to finish your project and sets up solid enough to stand on within 10 minutes. Can easily withstand the weight of a person bouncing up and down on it. Just wish that it would expand a little bit more, having to buy a few more jugs to finish my boat project. Definitely gets pricy.

Order more then yup think you need

Being a more dense foam I was hoping for more expansion but it did the job. I used this to repair my pool steps from where improper install caused the dirt to wash out underneath them. This filled the void well.

Works well. Be quick and ready for it, it expands quickly and will come for you if you're not prepared to control it.

Awesome stuff, I used it to fill holes used from animals going under my cement driveway and walkway. Fantastic results and hardens like a rock

It worked perfectly to replace floatation foam in a boat

Works great but you have to be fast!

Very good product, came leaking tho, but was refunded.

Je ne l'ai pas utilisé parce que trop froid à l'extérieur je l'ai acheté maintenant pour ne pas a avoir à payer 25 pour cent de droits de douane mais je sais que le produit est bon car déjà utilisé dans le passé pour remplir mes bancs de chaloupe aluminium