

💪 Seal it, fix it, forget it — the ultimate underwater repair putty!
JB Weld WaterWeld is a 2 oz epoxy putty stick that cures underwater in 25 minutes, creating a durable, waterproof seal on a wide range of materials including plastics and metals. Resistant to chemicals and safe for potable water applications, it’s the go-to solution for fast, reliable plumbing and marine repairs. Made in the USA, it delivers professional strength without the hassle.








| ASIN | B000BRQ0TW |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 3,202 in DIY & Tools ( See Top 100 in DIY & Tools ) 4 in Waterproofers |
| Colour | cream |
| Customer Reviews | 3.9 3.9 out of 5 stars (12,531) |
| Date First Available | 18 Jan. 2012 |
| Finish | Brushed |
| Included components | J-B Weld Waterweld Putty 57g (2oz) |
| Item Package Quantity | 1 |
| Item Weight | 70 g |
| Item model number | 8277 |
| Item thickness | 4 Inches |
| Manufacturer | JBWeld |
| Material | WaterWeld Epoxy Putty Stick |
| Number of Pieces | 1 |
| Part number | 8277 |
| Pattern | Solid |
| Power source type | ac |
| Product Dimensions | 2.54 x 10.16 x 17.78 cm; 70 g |
| Shape | Rectangular |
| Size | 1 Pack |
| Special Features | Cures under water |
| Specific uses | Casting, Countertop, Flooring, Glass, Masonry, Repair, Table Top Coating, Underwater Repair, Wall Repair |
| Style | Single |
P**.
A good quick fix waterproof putty
This worked very well at sealing a crack in the white plastic waste pipe from my gas boiler, it was dripping constantly, it can be a bit messy, next time I will wear gloves.
L**E
Works well.
Good bond to my waterbut. Needed to seal the input drain pipe that was leaking. Fixed it with this. No leaks, does need a bit of working to get it right and takes a good while to cure. But decent product overall.
T**M
Perfect for plugging a leak.
Perfect for what we needed, arrived promptly and good value for money.
T**S
Not very good in wet conditions
When it's wet it becomes slippery and you cannot apply it correctly, will never buy again
F**Y
Small repairs only.
Not impressed with this product. It is not difficult to use but I would only recommend for very small, dry leaking points. Applying to larger leaking/wet areas does not work well in my experience, even though it says it sets under water.
S**S
Brilliant stuff
Brilliant stuff, but worth watching some U-Tube videos first on how to apply it.
I**S
Get some - really works well
Bought this in a last ditch effort to fix a leaking soil pipe. Leak was caused due to a split in the pipe where someone one had bodge fitted a junction from the shower waste pipe into it. The nuclear option i.e removal of the soil pipe would have caused significant disturbance to the bathroom. I packed this around the broken junction which was quite inaccessible. This stuff is super sticky when mixed and you have to accept that your hands will be covered in it by the end of your job (clean off with isopropyl alcohol). Takes about an hour to go fully off…. But it worked and it stopped the leak. Dries rock hard. I made sure to rough up the area first with sandpaper and clean it with isopropyl alcohol. Very happy with the results. Would use again
A**R
It works - mostly
Nothing else I tried worked. This stopped a leak from a water butt whilst the water was still spurting out. This helped save me a lot of money, when other things didn't work. - Edit - whilst initially working once it dried out it fell off after a couple of weeks. It may need some tape to hold it in place. It still worked better than other attemps.
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.
D**A
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.
O**A
Muy bien adhesivo para pegar tazas y cosas así excelente
R**T
Just what I needed
Trustpilot
2 months ago
2 months ago