WaterWeld, 1 Hour Cure, Epoxy Putty Stick - 2 Pack, Off-White (8277-2)

This was so easy to use and worked really well! I am not even close to being a plumber, but this sealed my leak up. Used on old copper pipe in my basement. Drying/curing time was fast and the leak stopped almost immediately. There was enough to seal around my pipe with some left over. Not sure it would be enough to do 2 full fixes but a good amount.

had a cracked thru hull fitting I needed to get through the weekend and this stuff cured underwater and held solid. kneaded up easy and set firm in about an hour like the packaging said. used it on a leaking pipe under the sink too and same result.

This product works and is waterproof!!! I made a large fountain out of a ceramic pot and tried two other “waterproof” products that did NOT work. A friend told me to try this and it worked perfectly!!!! LOVE this product! It was easy to use and it is definitely waterproof. If you are building a fountain, I HIGHLY RECOMMEND this product!!!!

Normally this stuff works well and sticks to most anything. Did not work on my Fiberglass water tank the developed a leak. Sanded the spot. Cleaned with MEK.. applied JBWeld and 24 hours later filled the tank and the leak re appeared.

as advertised, great product, working well with no leak just follow instructions.

I was desperate. I live in an old house with old pipes. One had burst open at a joint and I could not get it to stop spewing water. I was told it would be the next day when the plumber could come out. So I tried wrapping it with waterproof tape and I made an order for the weld. Having gotten it I tried my best to apply it to the pipe, over the wrap, and any other open place I could put it. I finally got it down to a drip. Now here's the thing, when the plumber did get here he tried everything he could to remove that mess that I had made. He finally had to saw off that piece of the pipe and replace it. He shook his head at me and told me there was no way that piece of pipe was going to be uncovered. Whatever I had put on it had solidified and was not coming off. So here's my thought, had I been able to get the pipe dry and apply it as per instructions it would have held. I just had a problem would not being able to find the shut-off. So I had the plumber show it to me before he left, not knowing that having done that he may have just knocked himself out of that next call! LOL

I have been using J-B Weld products for over 30years with complete satisfaction. I needed it to replace some of my swimming pool tiles underwater. I have worked with lots of putty, and this is not a good buy. Hard to work with and to make stick... I will use the packages I have left when I lower the pool level. Hopefully I will get better results.

Love that you can use this underwater and it still cures. Water tank safe. I have been using this for pond repairs. Doesn't hurt my skin if I use bare hands. Really good stuff, holds up for years.

I got this Waterweld to plug some tiny holes in a concrete drinking water cistern. The stuff works great. You need to use it correctly however. My concrete is Spaulding so if the loose gravel is not removed or sealed first, the Waterweld epoxy will incorporate the grit and not stick properly. I've used this stuff on cleaned concrete, PVC, ABS (all under water) and rubber (at the waterline) and it has held more than a year. I used it originally in summer 2023 and didn't use it all. I wrapped the remaining unmixed epoxy in plastic, used the remainder in the summer of 2024 (worked fine). Then bought another 2 pack in the summer of 24. I have more repairs to complete in summer 2025 and have one tube left. I'm sure it'll work fine when I get to the job this coming summer. If I need more, I will definitely buy this type/brand as it's served me well.

Works great

This product is amazing it works just like it advertised it stops leaks on plastic metal and other materials once you use the product it becomes hard like a rock always good to have around for emergencies

A very useful product for filling those knicks and scratches on boat undersides. However kneeding the putty to properly release the curing catalyst is messy and if not done right you won't have a solid repair. I found extended time kneeding the putty sends it into a rapid curing mode making filling a void challenging but not kneeding the putty sufficiently substantially extends curing time or even improper curing leaving a soft repair.

I used J-B weld on my pvc joint that was dripping water from my pool heater and it stopped the leak Would definitely recommend