💪 Fix it fast, fix it right—underwater or on dry land!
J-B Weld 8277 WaterWeld is a hand-mixable two-part epoxy putty stick that cures underwater and sets in 25 minutes, fully curing in 1 hour. With a lap shear strength of 1300 PSI and heat resistance up to 300°F, it bonds a wide range of materials including metals, plastics, and fiberglass. NSF-certified safe for potable water, it’s ideal for plumbing, fuel tanks, pools, boats, and more, making it the go-to solution for durable, fast, and versatile repairs.

| ASIN | B000BRQ0TW |
| Best Sellers Rank | #712 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Metal Filled Epoxies |
| Brand | J-B Weld |
| Color | Off White |
| Date First Available | February 17, 2007 |
| Department | Epoxy |
| Full Cure Time | 60 Minutes |
| Global Trade Identification Number | 00043425082770 |
| Is Discontinued By Manufacturer | No |
| Item Form | Putty, Stick |
| Item Package Quantity | 1 |
| Item Volume | 59.14 Milliliters |
| Item Weight | 2.46 ounces |
| Item model number | 8277 |
| Manufacturer | JBWeld |
| Material | WaterWeld Epoxy Putty Stick |
| Number of Pieces | 1 |
| Package Information | Tube |
| Product Dimensions | 1 x 4 x 7 inches |
| Special Feature | Cures under water |
| Specific Uses For Product | Casting, Countertop, Flooring, Masonry, Repair |
| Tensile Strength | 1300 Pounds Per Square Inch |
| UPC | 043425082770 |
| Unit Count | 1.0 Ounce |
| Viscosity | High Viscosity |
| Viscosity Level | Medium |
| Water Resistance Level | Waterproof |
Y**O
Neat stuff
First off i do like the product, it seems to work and hold strong. I used it to cement/glue some rocks and wood together in my aquairum. After finishing it seems well put together to where i trust it with fish in the tank. But It was hard to get it to stay on the rock as it didnt want to get off my gloves that i used to apply it. That was the most difficult thing about the process and it easily stains objects like rocks, wood and potentially glass if you accidentally get it on them. I add to use some glue to add moss on the spots i used it and accidentally touched to hide it as it itself and its residue are noticeable.
D**A
I refurbish and repurpose cast iron cookware and pretty much anything that's cast iron because it's my passion
I refurbish and repurpose cast iron cookware and pretty much anything that's cast iron because it's my passion. When my boss who owns a barn in Connecticut that was built in the 1700's found this out, he immediately thought it would be a fun challenge to start digging up old cast iron pots that he would find in the ground in his barn to bring to me to see what I could do to bring them back to life. The first project he gave me was an antique S&P Kettle pot. It was severely cracked on the bottom. When it comes to cast iron, you have to weigh your options and in this case it really wasn't worth having somebody weld it together for me because it could have created more damage because the crack was that severe. I felt because this wasn't going to be used for cooking and a great repurposing project, I consulted with my service managers because they work with these kind of materials and would know what kind of bonding agents in materials would be best to use that would be effective to do the job for these kind of projects. Because my job involves working with plumbing and cast iron and things of that nature, I knew that I was talking to probably some of the best resources. They recommended this product and I purchased two tubes from Amazon because I wasn't sure exactly how much of this stuff I was going to or needed to use. Sometimes it's always hard to tell from the picture on Amazon as opposed to what you get when you actually receive it in the mail. It is a putty type material and it is white. I only used one tube and not even close to half of it so a little goes a very long way! The putty works perfectly and it goes within the crevices that you needed to and you can shape it but you have to make sure you do it quickly before it dries because it does dry quickly as well which is great. I didn't want it to be perfect I shaved it enough to fill in the huge crack. Because it's white I knew I didn't have to make it look pretty because I knew I was going to be repainting the whole pot once the putty had dried. Before I did any painting, I did a test just to humor myself and I filled the pot with water. I have to say that no water left that pot anywhere and if I wanted to use the pot for just a planter at this point, I am incredibly confident that I could do that without any worries of leakage. So I have plenty of this left for the next time I come across a crackpot repurposing project and I'm excited with the fact that I have a product that is amazing and will definitely be able to use and it will work. So whether you're going to use this for plumbing needs, repurposing needs or whatever, not only is the price right, but this stuff is awesome. It does the job. Again though just to be clear, it is white and dries white so if Aesthetics are an issue for you, you should count on definitely painting over it with the color that matches the item that you're working on.
D**E
Not this time
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.
T**O
This product works on leaks! Great stuff!
Even though I had used JB Weld for almost 40 years, I never knew they made a WaterWeld product. I had a leak in a pvc pipe and went to youtube to find out the best way to repair it since the Flex stuff failed. That's where I learned about JB WaterWeld and purchased it for $10 at a hardware store. I followed the directions and it worked like a charm. I purchased this one on Amazon for almost $4 less, to keep on hand. This stuff is amazing! Trust me, you want to have one on hand for emergencies. Maybe 2.
D**I
Works great for my sprinkler pipe
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 around the 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 12 patched 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.
T**I
Good
H**�
Ich habe den J-B WaterWeld Epoxyd-Kitt für meine Pool-Filteranlage benutzt, weil am Deckel ein Riss war und ständig Wasser austrat. Obwohl die Anleitung nicht auf Deutsch ist, war die Anwendung absolut selbsterklärend: Stück abschneiden, kneten, auftragen – fertig. Meine Erfahrung: Sehr einfache Anwendung, man braucht kein Vorwissen. Nach dem Aushärten absolut dicht – 100 % erfüllt, was ich mir erhofft habe. Ideal für Notfälle im Pool- oder Sanitärbereich. Wichtig zu wissen: Das Ergebnis sieht nicht unbedingt schön aus, eher wie ein grober Flicken. Wer Wert auf Optik legt, sollte das bedenken. Handschuhe sind Pflicht – das Material klebt stark und ist schwer von den Händen zu bekommen. Fazit: Der Kitt macht genau das, was er soll: abdichten. Für mich hat er ein teures Ersatzteil gespart. Klare Empfehlung für alle, die schnell und zuverlässig etwas reparieren wollen.
C**S
This stuff works awesome, good thing to keep on your boat in case you get a leak or damage
O**A
Muy bien adhesivo para pegar tazas y cosas así excelente
T**M
Perfect for what we needed, arrived promptly and good value for money.
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