Black Spray Waterfall Foam Sealant - (12x24oz) Expanding Polyurethane Pond Foam Sealer Black, UV Resistant Insulating Spray for Landscape & Exterior, Gun Not Included, 12 Pack

I will never go back to using those little individual cans again. I use this spray foam for my terrariums and it is amazing with the gun because you can reuse it and there is so much of it. This stuff cures super quickly (within the hour) and I was already able to carve it. It doesn’t have a nasty odor and it’s super durable! I would definitely say this is the best value for your money. Only $10 a can which is way cheaper than any small can you can find!

Great product and works well in slow to medium paced water. I don't recommend for very fast water and I do wish they could ship it faster.

This foam sealant is fantastic—but you’ll probably need more than you think. Glad I went with the 12-pack. I’ve been experimenting with different ways to texture the surface: foil, wax paper, freezer paper, plastic wrap. Pro tip: don’t try to hold back the expansion with flimsy barriers. I learned the hard way—watched it slowly balloon into a giant bubble, then pop and shoot liquid foam several feet across the patio. Looked exactly like a giant zit exploding. *Sploogggh!* Absolutely hilarious. Only regret? Not catching it on video. Also, the Kraken Bond PRO Foam Gun - 8 Inch Durable Spray Foam Dispensing Gun is excellent and makes it easy to apply the foam precisely where you want. Good luck with your project. I think you'll like how this foam can help.

I love this stuff and I buy a lot of it.

As a contractor, I use foam from many companies everyday at work. With names like Great Stuff, DAP, Locktite foam to Akfix. I like this one because it is uv resistant and black. It is closed cell and expands like others. It is great to use in corners and places where you dont want to cut it or paint it. Im on my third case this month....

Used this to make a backdrop for a terrarium. This stuff is great!

Don’t buy this product and definitely don’t buy it from this company. Not only does it not work well, there are no returns. Evidently they know how to ship it to you just fine but don’t know how to figure out how to return ship it. Their way of not taking returns. All by design! Stay away from companies like this!

This stuff works great