J-B Weld8277 WaterWeld Epoxy Putty Stick - 2 oz., Off White

. I’ve seen some negative reviews for this product But , if you FOLLOW the SIMPLE directions then you should be good. For systems under pressure you should relieve the pressure before you start the process. Rough the entire area with a file or wire brush then lightly sand before degreasing. Make sure all debris and dust are cleared, mix the putty VERY WELL. You will feel it getting warm, then apply. Wait about an hour or two before reintroducing pressure.Edit to add: check the bottom of the product for the silver disc that has the manufacturing date. The product is good up to 2 years after manufacture date. Example, my tube has 5093, that translates to, being made on the 93rd day of 2025.

I noticed that I had a leak inside my car on the windshield frame. I used this once I was sure it was dry and this was so easy to use. After you put it on you leave it to harden. I live where it rains a lot and ever since I put this on that section has never leaked.

Not as strong and as resistant to water as described on the packaging but it's a life saver when you need to fix something temporarily. I used it on multiple occasions and I buy and keep a fresh one in my toolbox every time I open one.

Used it to patch a PVC pipe that was leaking - followed the directions to a T.So far, so good.Originally tried flex seal...that failed.

Very good product. used it to fill a hole in an old facuet for temporary coverage but it turned out to be a good fix. I sprayed it with the silver spray paint and no one could tell. I purchased it again.

Completely worthless. It's way too soft. It doesn't cure in 25m at all. It is a one stage epoxy, so when kneading it, it just got softer and softer. Then when applied to the pipe it just fell off because it was too soft.2 hours later, it is still soft, but water is dripping everywhere. I turned off the water, but it still has slight drips, but they all just build up behind it and it falls off. Thus stuff is completely worthless. I'm hoping Amazon will give me my money back. I used the whole tude on a tiny tiny leak, hoping that if I just keep stacking it up, it will work, yeah, no. I'm afraid to turn my water back on. It's been 2 hours and it's still soft. I'll wait till tomorrow, but honestly, I think it's going to be worse. And fyi, it was a pinhole leak.I've now purchased some silicone tape, which i will try to put over this small leak... ugh.

Helped Control Leak but did not entirely stop it.

It works great on a L shape elbow pvc joint in my sprinkler box (about 80psi).There is a very small leak in my sprinkler box, found last fall and confirmed this spring when turn back on the water (photo 2), there a few hair size water shoots out from it. I removed the component and brings to Home Depot, but they said the manufacture is no longer making it (or out of business), and they do not have any replacement in similar size.So for me, try some alternative solution is the only way to do before spend hundreds to hire professional. I decide to give this a try to this patty before really hire someone to do it, and thanks to many other reviews in this post, even a lot of people says it doesn't work with pressured pipe, I did see there are people successfully make it works.Based on all other people's experience, I did the following steps with extra caution:1. clean up all the dirt and debris, wipe out clean with paper towel.2. rough the surface a little bit with a wood sandpaper (barely add some scratch on the surface, to improve the bond between this patty and the pipe).3. discards the first1 inch of patty on the edge (some people recommend so), then take a about 1 inch of patty for first application. knead it to bar/snake shape and fold it, repeat for dozens of times.4. after it fully mixed and soft like peanut butter, make it like bar/snake, wrap it around the leaked position (like a ring over your finger), push it to the surface and smooth the edge (like a band aid aroundthe ring over your finger).5. wait 1 hour to 2 hour for first application to harden a bit (the first application only becomes slightly harden after an hour), then do the 2nd application same way to "patch" the 1st application (use 1st application to seal the leak, 2nd application to seal any potential leak of 1st application).6. wait 3 days instead of just 1 day to let it fully cured (assume there are moisture in the pipe and it take longer to dry)So far it works well after turning water back on and no more leanings.I will keep monitoring my pipe, in case if it leaked again, I will update here.note1: the product i received says its strength is 4370 psi (picture 1), which is much higher than the label in old picture and another product in home depot. I guess that extra strength may also helps if the product is fully cured.note 2: if your hole is larger, you may need more putty to add extra strength than how much i uses. but i still recommend multiple applications than use everything in one shot.----update: June 12patched another garden hose with 2 steps. it works for a week but leaks soon after a few usage, i guess flexible pipe may need more skill & patient.