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💪 Fix it fast, fix it right—underwater or dry, WaterWeld’s got your back!
J-B Weld 8277 WaterWeld is a hand-mixable two-part epoxy putty stick that cures underwater in just one hour. With a lap shear strength of 1300 PSI and resistance to heat up to 300°F and harsh chemicals, it’s engineered for plumbing, fuel tanks, pools, boats, and potable water tanks. Its off-white putty can be drilled, sanded, and painted after curing, making it the go-to solution for professional-grade, waterproof repairs on metal, plastic, and fiberglass surfaces.

| ASIN | B000BRQ0TW |
| Best Sellers Rank | #221 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Metal Filled Epoxies |
| Brand | J-B Weld |
| Brand Name | J-B Weld |
| Color | Off White |
| Compatible Material | Metal |
| Container Type | Stick |
| Customer Reviews | 4.2 out of 5 stars 13,582 Reviews |
| Full Cure Time | 60 Minutes |
| Global Trade Identification Number | 00043425082770 |
| Included Components | Epoxy Putty |
| Item Form | Putty, Stick |
| Item Package Quantity | 1 |
| Item Type Name | .... |
| Item Weight | 0.07 Kilograms |
| Manufacturer | JBWeld |
| Material | WaterWeld Epoxy Putty Stick |
| Material Type | WaterWeld Epoxy Putty Stick |
| Model | 8277 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Cures under water |
| Part Number | 8277 |
| Special Feature | Cures under water |
| Specific Uses For Product | Casting, Countertop, Flooring, Glass, Masonry, Repair, Table Top Coating, Underwater Repair, Wall Repair Specific Uses For Product Casting, Countertop, Flooring, Glass, Masonry, Repair, Table Top Coating, Underwater Repair, Wall Repair See more |
| Tensile Strength | 1300 Pounds Per Square Inch |
| UPC | 043425082770 |
| Unit Count | 1.0 Ounce |
| Viscosity Level | Medium |
| Volume | 59.14 Milliliters |
| Warranty Description | No Warranty |
| Water Resistance Level | Waterproof |
P**F
Very easy to use. Just have some rubber gloves.
I wish I could give this 6 stars. I had a small but annoying drip coming from my cast iron plumbing which is now over 50 years old. This was easy to apply. Just break off a small piece and knead. It sticks directly and cures very fast. Just spread it over the leaking area. So far it has been a few weeks and the leak is still dry. I see this as a permanent fix that will last a very long time. There is a slight odor but it goes away as it cures. The repair is not attractive to look at. Maybe a more seasoned veteran could make it look better but it is on a pipe in my basement and saved me hundreds.
S**P
Fix for a hard-to-replace sink part: strong grip + easy to shape
Exactly what I needed. My kitchen sink has a little C-clamp piece that holds the pull-down faucet hose, and it kept slipping off — once it fell straight into the garbage disposal while the disposal was running 😳. Of course the sink model is discontinued, so replacing the part wasn’t happening. This WaterWeld putty was the perfect solution because it’s moldable (like Play-Doh), gap-filling, and made for wet environments. I dried the area, wiped it down to remove grime and oils, then cut off a small piece and kneaded it until the color was uniform (took about a minute). You don’t get a ton of working time, but it was easy to press into place and shape. Pro tip: use gloves, and rough up the area firsst. It started firming up quickly and cured fast enough that I felt comfortable using the faucet again later the same day. It’s now holding the clamp solidly and I’m no longer living in fear of the “garbage disposal snack attack.” Only downside: the working time is short, so have everything ready before you start. Otherwise, this did exactly what it promised and saved me from replacing a whole fixture. ⭐️⭐️⭐️⭐️⭐️
L**I
The possibilities are endless
This stuff works really well. It's sort of a "Mighty-putty" type product if you ever saw those comercials. Make sure you wear gloves when you mix it because it's super hard to get off your hands and it smells pretty bad. I used it to patch a small hole in the tile in my bathroom where the guy who installed the tub faucet cut the tile too large and there was a gap. This worked perfectly. Where it didn't work was outside on this wooden beam that had a chunk out of it that I wanted to fill in. I thought I could stuff some of this in the hole, wait for it to harden, and then paint it, but I guess it doesnt stick to wood very well. It kept just falling right off. There's endless uses for this though. I keep it in stock at my house for when something comes up. There was a little gap in my baseboard and some ants were getting in and I used this to patch it. You get the idea.
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.
N**.
Safed my pool a bigger repair.
I had some small paint cracks on the deepest end of my pool and in order to fix it i would have had to completely empty it. I found this product promising to harden under water and I gave it a try. Its easy to use and with my scuba tank I had plenty of time underwater to perfectly fit it to the cracks. And its working. Have it on for several months now and no water leaking! Highly recommend!
M**U
Did not bond to PVC pipe
Purchased this to try to seal off a leaking PVC joint (1.5" ) on the return side of my pool equipment. I had low hopes as I've also tried a different brand of two part epoxy, but with the good reviews, thought maybe this was a superior product. After kneading it together, I applied it to the joint, completely surrounding the circumference of the joint and firmly pressing it in. Note that the joint (outside) was dry at the time. I let it cure for about 8 hrs (PHX, temp between 60-80 F during that time), and it was pretty thick as I used the entire tube, and was more of a brighter white (than off white). I pressed on the epoxy and it was "crusty" but still a bit pliable as I could push on the thicker parts. Once I turned the pump back on, the epoxy had not bonded to the PVC, and so the leak was not stopped. What is even worse was once the epoxy was damp again, it began to soften up even more and had no adhesion to the PVC anymore. Literally, I peeled it off like it was a casted mold. I can't imagine trying to get this product to set while under water. Maybe this is not specific to this brand and this product would work better on a different material, but on PVC piping, it was a complete waste of money.
J**.
Didn’t work
Did not work at all. It was supposed to say hard a little while after applying, never did get hard was still soft the next day. Will not buy again. It was like it was old.
E**N
Excellent and Waterproof Sealer
Excellent! This works awesome on a cracked fiberglass tub/ shower.
T**I
5
Good
H**�
Dichtet zuverlässig, auch wenn es nicht hübsch aussieht
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.
M**F
An excellent repair job 10/10!
I used this on my stainless steel hot water cylinder 2 months ago as a temporary fix and so far so good is still holding. My cylinder is a on a sealed system with 2 bar pressure. I discovered a leak in good time before any damage to my timber floors. Waiting for a plumber just took too long and so I decided to do a temporary repair myself. I located a pinhole leak which was squirting the water out a distance under pressure. The foam insulation around the tank meant I had to do a bit of insulation removal to find the leak location. I drained the cylinder tank, dried around the area and used the JB Waterweld to repair the hole. I used latex gloves which, while very sticky with the epoxy putty, is better than bare hands with sweat/hand moisture etc which I felt could prevent the epoxy from adhering properly. I used about half the epoxy putty and worked it into the pinhole as much as was possible and then covered a big patch around the area but not too thick. I tried to remove a small bit of the dried epoxy putty recently to see how well it was sticking but it was completely ’welded’ to the tank. Obviously the most important thing is to make sure that both parts of the putty is completely mixed together to form the off white colour before use. I probably will need to get a new cylinder tank in the near future but everything is back working ok at the moment.
B**E
Excellent
Works as advertised. Easy to use and waterproof.
O**A
Excelente producto
Muy bien adhesivo para pegar tazas y cosas así excelente
Trustpilot
3 weeks ago
2 weeks ago