J-B Weld 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.

They have worked really nice, I am surprised! I used lots of other technics I was about to give up but this worked. It was easy to apply totally surprised me to hold until that pressure.

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!!!!

I ordered 4 of these. One didn't cure. I kneaded them all the same, excessively, just in case. One of the batches still had putty consistency 3 days later. I had to scrape it off, reclean the surface, and use another tube. The second tube cured properly, so all is good. I don't know why the one batch failed me. Just be aware it can happen, and you'll have to redo your work. As for the other 3, they all cured rock hard, as expected. I am happy with the performance of it, that's why it still gets 4 stars. One star off for one tube wasted.

Works wonders for leaking pool skimmer!! It does stink! Just mold it press it into where you need it and let it dry.

Used to seal leak in pool. White color dries quick even under water used prior time and is very durable though does chalk some. Flexes to adapt to site used.

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

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.

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

turns rock solid after 24 hours if using part of make sure the rest is air tight for use later.

This stuff is soft and sticky and pulls off the leaky pipe I was fixing when I was pressing and forming it to shape. What a waist of time and money. the other product by this company is better. The dark grey one.

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.