We enjoyed our hot tub for around 5 years until a rodent made a mess of the inner workings. I knew it was going to be expensive to replace/repair. When I found the patches, I quickly discovered they were just right for the job. I'm impressed by how easy it is to use these on the "jet tubing" which is what the prime target of the rodent seems to be.
It worked great.Mike
Cleaned the hot tub, let it dry, and applied the patches to the area where there was a small crack. Almost a month later and there is no leaking. There are extra patches, bought 2, in case they are needed.
I bought this patch to reinforce an epoxy patch that I had to make on a brand new hot tub that cracked. The manufacturer said it would take till March/April 2021 to get me a new hot tub so I used this to patch the cracked one till the replacement comes. It did the job.
This product stopped the leak in my spa