Nano Q10 Underwater Seal & Lock - Leak and Crack Repair Without Emptying The Pool, Reservoir, or Tank. Eco-Friendly Under Water Adhesive, Stays Flexible, Waterproof, and Chlorine Resistant (2.1 Oz)

When you put this product on you may still have a leak, but once it dries No Leak. I recommend this product. I used on the fittings of my hot tub.

The media could not be loaded. Zero stars, really.Read online this was the absolute best thing to get for leaks, including pipes. This does not stop leaks on pipes! I prepped the area and cleaned it, added the product. Next day, still leaks. Added more product, 10 hours later it still leaks. Not happy spending $75 on something that won't work and I wouldn't trust this on a pool or boat or that it would even stop a leak under water!!

This product works amazing, sticks and cures under water or on dry material, cures within 12 hours. It instantly fixes leaks, that are not under much pressure, it can stick under water exactly like it does out of the water, crazy good. it is so sticky. I think the bad reviews must have been from people who expected it to instantly fix leaks, before it cures, that are under real pressure and that is just simply unrealistic. If there is real water pressure it needs 12 hours to cure before you turn the pressure back on, because it has the consistency of calking for several hours before it cures..;. but the great thing about this product is you do not have to dry the area... you can apply it to wet surfaces and it sticks and cures perfectly. And unlike calking it drys hard, much like a PVC pipe with a little more flexibility, so it can hold up top pressure. I have used it on a 100 gallon metal horse water tub, under water to fix pool leaks on tile and pebble teck, and to fix plastic animal waters while full of water, and even on a smooth ceramic coffee cup. it cures quite hard with a little flexibility, just perfect for not re-cracking. This is not just calking, This is like glue and calking and some weird magic that makes it strong, this fixes everything, i am using it weekly on something or other, I am buying more to have around the house at all times. It is white in color.

Very disappointed in this product. A third of the sealant was dried in the tube. The worst part is that it was dried at the top of the tube at the opening. So the product had to squeeze through the dried portion which was very difficult and messy. Wasn't enough to finish the job. Need another tube but don't want to risk going through the same thing with another tube at that price.

I used this product to repair a crack in some swimming pool tiles. The product did not come out of the applicator very smoothly, and I had to use my hand to push the product into the crack. Seems to be holding the water in though.

Had two gaskets leaking on a holding tank on a boat, 2oz was not enough, still had very tiny leaks hydraulic pressure finds the weakest point, does exactly what I needed, work it in use rubber gloves, next two oz finished

Couldn't do less then one star!Clipped the nozzle and the contents where dried out and unusable. I cut open the tube trying to salvage at least part of my $70 and the little bit that was still pliable did not adhere to the fiberglass I was trying to repair. I have to say that it did stick to my hands but as far as fixing my problem a complete waste of money. This is my first review on Amazon and the only time I have felt potential buyers needed to be warned.

I used this product to fix last years failed patch on my above ground vinyl lined pool. I used the adhesive on the back of a new vinyl patch and along the outside edges once in place and waited overnight and there is no more leak! This product saved me from having to replace my entire vinyl liner! Thank you for this amazing product!