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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 | #348 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 | Tube |
| Customer Reviews | 4.3 out of 5 stars 13,441 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, Masonry, Repair |
| Tensile Strength | 1300 Pounds Per Square Inch |
| UPC | 043425082770 |
| Unit Count | 1.0 Ounce |
| Viscosity | High Viscosity |
| Viscosity Level | Medium |
| Volume | 59.14 Milliliters |
| Warranty Description | No Warranty |
| Water Resistance Level | Waterproof |
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. ⭐️⭐️⭐️⭐️⭐️
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.
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**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**N
Adheres well and sets up strong.
Mix it well and it will treat you well. I put on some gloves. I break off the amount I need and roll it around between my palms while pressing firmly. I can feel the heat of the reaction starting as it warms in my hands. Then I squish it into place and mold it into the shape I need. It sets up very well in 1 hour.
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.
T**N
Didn’t work for me.
Used this on a very slow leak on pvc. Didn’t stop the leak but can’t say that it might not work on other applications.
G**H
Really works!!!
I was super skeptical. I had a 50yr old brass spigot that i left open but had put stop at the end of spigot. needless to say it created a 1/2" crack in the spigot's nose. replacing it was going to require cutting drywall, solder copper, etc.. I initially planned to use sharkbite products but felt lazy and threw a hail-mary. It worked . At least thus far. More to follow if the cured putty "pops off" . But initial impressions are "amazed"
Trustpilot
2 months ago
2 weeks ago