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⚓ Seal the deal with MarineWeld — the ultimate cold weld for fearless fixes!
J-B Weld MarineWeld is a premium two-part epoxy cold weld system designed for strong, lasting repairs on multiple surfaces including metal, fiberglass, plastic, and wood. With a tensile strength of 5020 PSI and heat resistance up to 550°F, it cures to a durable, waterproof, and chemical-resistant dark grey finish in 16-24 hours. Ideal for DIY marine, automotive, and household repairs, MarineWeld offers professional-grade performance with easy 1:1 mixing and versatile application.














| ASIN | B000KKPFFA |
| Best Sellers Rank | 8,020 in DIY & Tools ( See Top 100 in DIY & Tools ) 16 in Metal Filled Epoxies |
| Brand | J-B Weld |
| Colour | Grey |
| Compatible Material | Fibreglass, Metal, Plastic, Wood |
| Container Type | Tube |
| Customer Reviews | 4.5 out of 5 stars 7,153 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00043425082725 |
| Included Components | J-B Weld MarineWeld Tubes 57g (2oz) |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | J-B Weld MarineWeld Tubes 57g (2oz) |
| Item Volume | 59.14 Millilitres |
| Item Weight | 2.5 Ounces |
| Item form | Liquid |
| Manufacturer | JB WELD LTD |
| Manufacturer Part Number | 8272UK |
| Material | Epoxy Resin |
| Model Number | 8272UK |
| Number of Pieces | 1 |
| Other Special Features of the Product | Strong and water resistant |
| Product Warranty | Na. |
| Special feature | Strong and water resistant |
| Specific Uses For Product | Craft |
| Specific uses for product | Craft |
| Tensile Strength | 5020 Pounds Per Square Inch |
| UPC | 043425082725 700736744130 043425700032 796793064694 043425008725 |
| Unit Count | 57.0 gram |
| Viscosity Level | Medium |
| Water Resistance Level | Waterproof |
M**S
Brilliant stuff!
Bought this to seal the holes in a bowl planter for a mini pond. It's fabulous stuff and works really well. I highly recommend it.
E**D
First class product
I needed to repair a leak on my diverter valve on my boiler as replacement part no longer available. This stuff did exactly what it says it does. Excellent product great price too. Would definitely recommend and purchase again
G**E
Decent stuff, so far
Seems to be the perfect solution to my problem. I'm altering the profile of a plastic fuel tank of a motorbike and have used this glue along with others, in trials. So far so good 🤞🙏.
J**L
Strong af and simple to use
Easy to work with for the strength you get. Follow the instructions on during time. Can get a clean finish and colour isn’t off putting
D**K
Amazing stuff
This really does the job. Used when our old porcelain toilet cistern developed a crack and started weeping from it. As an emergency measure I drained it dry, plastered some of this MarineWeld inside along the crack and a good margin either side, left it dry for the recommended 15 hours and refilled. That was a full 5 years ago with not a trace of water escaping. Then a fine crack appeared in another part of the cistern, and I did the same thing again and used up the other half of the original tubes which had sat in the garage and were still perfectly usable. Again, perfect result, no more weeping cistern. If I replace the cistern I'll have to completely replace all the fittings in that room as they're all matching and well over 30 years old and still otherwise performing absolutely fine. Massive save, thanks JBWeld, brilliant product! I bought it again because I always want some handy in case of future need :o) Originally recommended by a friend who clearly knows his materials!
A**.
easy application and extremely strong adhesion
Needed to repair a cracked granite sink which had completely split in 2 in the middle. After doing some research I settled on buying this JB Weld marine epoxy. Super easy to mix and apply, it is a dark grey/graphite colour when mixed at the recommended ratio. As this is not a fast setting epoxy, after application, I just joined the 2 pieces together and left it alone on the floor. I tested it about 12hrs later and it was set however I left it for a full day before handling it. Given the weight of the granite sink this has extremely strong adhesion - the drainer section which had cracked off was able to suspend mid air with no issues when I placed the sink up right on the floor. I installed the sink a couple of weeks later so it got some additional cure time though not required. Very happy as I was able to fix the sink for less than £6 rather than buying a new one! I would recommend taping and wiping off any smears/excess asap which I sadly didn't do. It's hard remove once it is set and I was unable to remove the smears I made as shown in the photos.
M**N
Not for me
Wasn't what I was expecting, more of a paste than a epoxy , like chewing gum, hard to work with.
A**R
Fantastic item
This product is amazing
Y**G
Works 💪
This product is very strong can repair ur fuel tank
R**N
Reliable, very durable weld, used to reinforce ceramic crockpot
I like this weld. I used it to shore up a developing crack on a crockpot. Extends the life of the crockpot, which would be hard to replace. The cured material is just as hard as the ceramic. The patch I put in place did partially break off after many years, however most of it is still in place.
J**T
Awesome
i use this stuff in crafting and i gotta say it works great. super easy to use, just mix parts A & B. it dries to a very dark glossy grey. its smooth and is very durable. i find that it holds the joint very well. these are small tubes but go a long way, plus the price is right so its all a win win
E**Z
tarda horas en endurecer para fijar las piezas, pero cuando seca queda sólido de verdad
si eres fan de los epóxicos que en minutos endurecen al grado de fijar las dos piezas a unir, no es el caso con este epóxico. Tarda literalmente de 4 a 6 horas para endurecer un poco como para fijar las piezas , debes de sostener las piezas a unir con una prensa o algo así porque de otro modo no se sostienen. Y para el secado total tarda de 15 a 24 horas. Es un epóxico LENTO, muy lento, no de los que fijan en minutos. La masilla la puedes seguir trabajando hasta dos horas después de prepararla lo cual es una ventaja dependiendo de la situación. Una vez que seca completamente después de 24 hrs, queda definitivamente adherido y sólido. Por eso cambié mi calificación
J**A
good product
good product
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