Nashua 3 in x 15 ft Aqua-Seal Waterproof Tape in Black

This tape is Awesome! Finally a tape that REALLY sticks and sticks even under water. Used it to repair a couple of cracks in a plastic yard pond and was able to apply it with out draining the pond. Two repairs have been holding for several weeks now and am very happy I didn't have to pull the liner out to repair or replace. Also used to waterproof the outside cat5 camera connections which seems to be working well although it is very hard to remove if you need disconnect it. Finding several uses for it and am glad to have it in my repair kit.

This stuff is amazing. It sticks to anything I have tried it on... actually sticks TOO well, because it is extremely time consuming if you need to remove it. I had a big crack in my plastic kayak, and this tape was the only thing I had that could slow the leak (didn't quite stop it). But it is a fast repair! When I got home I did a "plastic weld" for a permanent fix... but who is going to bring a plastic welder and have 120V on a kayak tour?

It was used to seal a crack in a preformed pond and it has held up for the last (2) weeks. I was impressed with how well it has worked. Once this tape is stuck to a surface, it is very tough to remove. Update: This product is still holding strong on the pond crack as of this date, January 2, 2024.

Surface MUST be dry for proper adhesion and does NOT adhere to silicone caulk even if dry. Otherwise, adheres well so far and is definitely waterproof when applied properly. Produce is very thin and easy to work with. Caution when applying as it will adhere easily and is difficult to remove, a good sign that is will not leak.

Works great to protect my outdoor light plugs from rain

Trash! This product started off strong held great but after about 8 months on my indoor pond it failed. I had several sections two to three inches long where the tape had failed and come loose. Would not recommend for anything. If you're trying to seriously waterproof anything I recommend just spending a little more money. For the sake that it cost me roughly $33 to reseal my indoor pond. Not to mention the damage that could have been caused had I not noticed the drop in the water levels and drain the pond before catastrophic failure.

This is sold for underwater use, and may work in many cases and for many uses. I used it in a 100 gallon fish tank, and it failed miserably. It stuck only for a day, and (probably coincidentally) all of my 9-inch goldfish (properly termed carp) died within two days. They were years old. No, I did not introduce ANY other substance, device, etc. to the tank at that time. I do have to admit that nowhere on the label, etc., did it say it was safe for use in a fish tank.

By far the best tape with the strongest holding power found anywhere. Just incredible! I have used it to cover a worn out door seal. Tape conduit to side of my water softener. Need a scissor to cut as it does not tear like duct tape. Seals and will not let go! I can not be without this tape in my tool box! The only downside is once it sticks it isn't coming apart without a fight, so don't use it where you need to remove it.

acabo de ponerla a una gotera que ni siquiera es muy grande, y sigue goteando el agua pasa, no la recomiendo para nada

This tape works so well for several RV repairs I have done. It is extremely sticky and adheres extremely well to any surface. Once it touches a surface it is stuck! It has some stretch in it, so it can provide a super tight seal. Highly recommend for outdoor adhesion.

I used this tape to cover up the screws on the sheet metal and also to cover up sharp edges from cutting my pool liner. It's an excellent buy. Only reason I gave it 4 stars is I thought it would of been a bit longer and thicker.

ZERO STARS! Don’t waste your money! Does not stick to pond liners! Bought 2 rolls of this, doubled up and it came unstuck within an hour of filling our pond. We were only covering a length of 2 feet.

Tried to repair a hole in pond liner. Bottom portion that I covered was a little damp. Didn't adhere at all to damp portion and lifted right off. The top portion did stick to the perfectly dry pond liner so I ended up with a patch that was two thirds on and one third off which makes it worse than useless.