Gorilla Waterproof Patch & Seal Tape, Clear Tape, 4" x 8' (Pack of 1) - Permanent Weather Resistant Seal for Leaks and Repairs

The tape is only sticky on one side. It has a film covering it, so in essence both sides are film-coated. So as long as you don't peel the film off the unused tape on the roll, you'll be just fine.This tape holds really well. I'm hoping it works as promised to keep air out.Update: it does!

Awesome product!! I purchased 6 different products to repair a rip in an above-ground pool liner (bottom corner). This gorilla tape actually worked. I am super satisfied with this product, and highly recommend it. Waterproof, strong, easy to use, does the job.

Tried to reinforce an above ground over some cracks. Pool is full, description says “works underwater” DOES NOT WORK UNDER WATER. Floated up in seconds after walking on it and pressing all the water out from under for about an hour. On dry areas it works great. Not good for what I needed it for.

Used to patch a small puncture in the awning on my RV. Worked perfectly. Tape is very sticky and being clear it was quite inconspicuous once in place. Looks like it will last a long time and will not come off.

Good on clean dry flat or nearly flat surfaces. Glue never cures stays gooey

There used to be a different tape made by this company that was fairly thin but worked much better that I cannot find anymore so I got this instead.This product was overall pretty mediocre as far as doing what it says it does. I tried it on a water pipe that had cracked during the winter and it did slow the leak but did not stop it. It was still enough of a leak that the pipe just had to be replaced.When I tried on an airbed type inflatable it worked okay, as in I had to refill the air only daily but it was still useable despite the leak. There was flocking on the airbed I had to get rid of first for it to work. A couple pointers if this is your intended use:1. Make sure the piece you are using overlaps the leak by at least an inch in every direction. Kind of common sense but I had only about a half inch the first try and it was not working once any weight was applied to mattress.2. Make sure item is completely empty of all air and repair area lays good and flat. Use something bigger than the repair area that is smooth and flat both under and as a weight on top of repair. After you place the tape put a heavy weight on top to help apply pressure and seat the tape. Doesn’t work well with just hand pressure, I had to leave the weight on for a few hours before it was stuck down well enough. The adhesive isn’t great but works okay after the time left sitting weighted down. Still peels off easier than I’d like no matter how long it is on there.I might try to seal edges of the tape with some kind of glue to improve performance but really shouldn’t have to if manufacturer description is correct. Overall I’m disappointed in this product, it just doesn’t seem to be what they claim in my opinion. Of course real world application and use in a lab setting where originally tested will not be the same as with anything. Fine for use in a pinch.I’m keeping in emergency toolbox as it does have some useful qualities.

Works great for patching a leak in my pool liner under water. Small piece over the hole, larger piece over that for extra protection. The small piece stopped the leak on its own

I used this underwater to patch above ground pool. Holding up great!