Kraken Bond Black Spray Waterfall Foam Sealant - (2x12oz) Expanding Polyurethane Pond Foam Sealer Black, UV Resistant Insulating Spray for Landscape & Exterior, Straw Use, 2 Pack

This stuff certainly expands, like a lot. But it sealed up all the rock joints and now no leaks at all. I just trimmed the excess and now it blends right in and you can’t even distinguish it from rocks. The waterfall had a leak that I just couldn’t figure out and this stuff solved it. Super happy. Only regret is I didn’t use it from the beginning.

Works as expected, & easy to use. Quality inline with price.

I used this foam to redirect water flow under rocks on my small waterfall/river in my back yard. It worked well and expanded more than I expected from reading reviews. Tip: wear rubber gloves and let it finish expanding, let it dry before cutting off excess. If you try to wipe it off it makes a mess that will never come off the rocks. It is very sticky.

Great product just wish the cans were larger capacity

The media could not be loaded. Let me preface this by saying that I had high hopes for the Kraken Bond Gaps & Cracks Expanding Foam Sealant. The promise of a high-expansion, waterproof filler for those pesky gaps and cracks around windows and doors was enticing. However, my experience was anything but smooth sailing.The initial application was promising. The foam expanded beautifully, filling the gaps with ease. It seemed like a miracle product, effortlessly sealing those drafts that had been plaguing my home. But then, disaster struck. Halfway through the can, the pressure fizzled out. I was left with a half-filled gap and a can of useless polyurethane goo.My frustration mounted as I attempted to clean up the mess. The foam, which had expanded so readily in the gaps, now seemed determined to adhere to everything else. My tools, my hands, even my clothes became victims of the sticky residue. The cleanup process was a nightmare, and I was left with a lingering sense of disappointment.The Kraken Bond Gaps & Cracks Expanding Foam Sealant may work wonders for smaller projects, but for anything beyond that, it falls short. The lack of pressure consistency is a major flaw, leaving you with half-finished projects and a sticky mess to clean up. It's a shame, really, because the foam itself does a great job of filling gaps. But the hassle of dealing with the can's shortcomings outweighs any benefits.In conclusion, I cannot recommend the Kraken Bond Gaps & Cracks Expanding Foam Sealant. It's a frustrating product that leaves you with more problems than solutions. Save yourself the headache and opt for a more reliable alternative. (⁠ب⁠_⁠ب⁠)

Great. Works perfectly

I used this last week on my garden pond. I bought two cans just in case. I should have bought more. It runs out VERY quickly. It was actually shocking how fast it ran out. Beware. Buy extra.

Good price works great