Liquid Rubber NeoPond Waterproof Pond Sealant - Fish and Plant Safe Waterproofing Membrane Sealer for Ponds and Water Features, Black, 1 Gallon

I sealed a freezer for my DIY cold plunge. It worked perfectly! Over a year still going strong. No leaks, no holes, just a great product.

I purchased this item to paint and seal 2 small concrete ponds, one of which had developed a leak due to a hairline crack. Both ponds had been previously painted black years ago using pool paint. I bought this black Neopond Sealant and painted the ponds after thorough cleaning and drying. I applied two coats each using a roller as well as a brush for edges and corners. The sealant goes on grey but dried to black. I was going to put additional coatings a week later, but few days later, we had heavy rains and the pools filled about 3-4 inches. The part under water had turned light grey just like when the paint was applied originally. Above the waterline, the paint remained black. Also, I was concerned about if the paint would adhere to the pond as after I finished painting, I had paint all over my hand. What concerned me was that I was able to easily peel the paint off of my hands without water or any kind of solvent. I just applied another coat of paint to one of the ponds to use up what was left in the container. Before I applied the paint, I noticed that I was able to peel off little of the paint from the pond. I was going to buy another gallon of this paint to apply 2-3 more coats, but I have decided to paint over it with Flex Seal, which I have used before with success for other things. I wish that I had gone with Flex Seal for the ponds to begin with. Now I'm just hoping that painting Flex Seal over Neeopond Sealant is going to work ok.

Did the job. But don't use chlorine.

Finally found a product to stop up leaks in seams of pond liner. It was very late arriving as Amazon kept notifying me it was on the way but it never came. Ordered a refund from Amazon and went straight to seller. It arrived within 3 days. Only tricky thing is finding enough drying time between rainstorms. It takes 72 hours to cure. I have yet to find out if it works for sure but it looks like it is covering holes and gaps nicely. Wish I had this years ago. I used single use brushes. Fairly simple. Just messy but it does wash off if you wash immediately. I used disposable gloves which worked really well.

had to fix a leak in my concrete pond and it works great. Looks very nice. Goes on easy. We’ll see how long it lasts.

Works great, provide smooth coverage and really softens the concrete providing a thick waterproof membrane. It’s very expensive and the package advertised. I was getting a gallon and it seems slightly less, but that gallon went a long way.

Did not stick to plastic liner

Did not work at all. Used on an above ground pond to fix a slow leak. Made no noticeable difference, still leaked. Also let it set before raising the water level and adding in the fish and plants. All the fish died and the plants were sick. Not at all worth the money, not fish or plant safe

I use this plant friendly pond sealant to seal the inside of planter pots, even though I weatherproof the outside of pots with either colour spray or clear coat spray. This prolongs the life of garden pots tremendously, in the long run saving money. Also, coat the inside of hollow pedestals, bird baths, etc. Anything in the garden with a hollow.

Used to line the inside of a leaky wooden barrel water fountain. Brushed on 5 coats. Grey when wet. Dries black. Stopped the leaks.

Easy to use

Not a great product, pealed off the first winter

Took an incredibly long time to dry