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J-B Weld 8272 MarineWeld Marine Epoxy - 2 oz.

4.7 4.7 out of 5 stars 6,677 ratings
$8.31
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2 oz
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Purchase options and add-ons

Brand J-B Weld
Material rubber
Compatible Material Aluminum,wood,plastic,metal,steel
Item Form Paste
Special Feature Strong

About this item

  • J-B WELD MARINEWELD: A two-part epoxy cold weld system that provides strong, lasting repairs to multiple surfaces. Perfect for all DIY marine and watercraft repairs.
  • CURE AND SET TIME: After mixing the tubes at a 1:1 ratio, it takes 4-6 hours to set and 16-24 hours to cure. Once cured J-B Weld MarineWeld can be tapped, filled, sanded, molded and drilled. J-B Weld MarineWeld’s set and cure color is dark grey.
  • VERSATILE AND DEPENDABLE: J-B Weld MarineWeld is steel reinforced, has a tensile strength of 5020 PSI and can withstand temperatures up to 550 degrees Fahrenheit (287 degrees Celsius). When fully cured, MarineWeld is waterproof and resistant to petroleum, chemical and acid. It retains strength above & below water.
  • SURFACE APPLICATIONS: Aluminum, Fiberglass, Metal, Plastic/Composite, Wood.
  • DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.

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J-B Weld 8272 MarineWeld Marine Epoxy - 2 oz.
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J-B Weld 50172 25 ml. MarineWeld Syringe
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 8 x 5 x 1.5 inches; 2.5 ounces
  • Manufacturer recommended age ‏ : ‎ 14 years and up
  • Item model number ‏ : ‎ 8272UK
  • Department ‏ : ‎ unisex-adult
  • Date First Available ‏ : ‎ September 20, 2004
  • Manufacturer ‏ : ‎ JBWeld
  • ASIN ‏ : ‎ B000KKPFFA
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.7 4.7 out of 5 stars 6,677 ratings

Product Description

MarineWeld™ is a specially formulated two-part epoxy Cold-Weld™ system that provides for strong, lasting repairs for bonding different or similar surfaces, such as metal, composites, fiberglass and others. MarineWeld sets in 4-6 hours at room temperature and is fully cured to a dark grey color in 15-24 hours. Once cured, it can be shaped, tapped, filed, sanded and drilled and will retain its strength above or below the water’s surface. MarineWeld™ has a 1:1 mixing ratio and tensile strength of 5020 PSI.

DIRECTIONS FOR USE
1. PREPARE SURFACE: Clean repair area of dirt, grease, oil, paint, rust, etc. For best results use a detergent ordegreaser to first clean the surface, then roughen surface with file or coarse sandpaper to provide the bestrepair.
2. MIXING:Squeeze equal parts from each tube onto a disposable surface and mix thoroughly..
3. APPLICATION: Apply with appropriate tool in an even coat, weld bead or extrude shape as needed.
4. DRIYING: Sets in 4-6 hours. Cures in 15-24 hours. Allow 4-6 hours before handling and 15 hours (minimum)before putting object back in use.

Top Brand: J-B Weld

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From the manufacturer

J-B Weld MarineWeld
MarineWeld Twin Tubes

Original Twin Tube Epoxy

MarineWeld is a specially formulated two-part Cold-Weld adhesive system that provides strong, lasting repairs for bonding different or similar surfaces, such as metal, composites, fiberglass, and others. MarineWeld sets in 20 minutes at room temperature and is fully cured to a dark grey color in 15-24 hours. Once cured, it can be shaped, tapped, filed, sanded and drilled, retaining full strength above or below the waters' surface. MarineWeld has a 1:1 mixing ratio and tensile strength of 5020 PSI.

Additional Attributes

  • Can withstand 550°F/288°C
  • When fully cured MarineWeld is waterproof, petroleum, chemical, and acid-resistant!
  • Surface Applications: Metal, Plastic, PVC, Concrete, Wood, Ceramic & Tile and Fiberglass.
  • Use On: Household, Automotive, Marine, Plumbing, Crafts, Outdoor Equipment, Agricultural Equipment, Motorcycle, Toys, Boats, Personal Watercraft, In/Outboard Engines and Deck & Hull Accessories.

MarineWeld Specs

MarineWeld Great For

MarineWeld Use On

Prepare

Mix

Apply and Dry

J-B Weld MarineWeld Twin Tube J-B Weld Marine Weld Syringe J-B Weld WaterWeld J-B Weld Original Twin Tube J-B Weld KwikWeld J-B Weld ClearWeld
J-B Weld MarineWeld Twin Tubes J-B Weld MarineWeld Syringe J-B Weld WaterWeld J-B Weld The Original Cold Weld J-B Weld KwikWeld J-B Weld ClearWeld
Customer Reviews
4.7 out of 5 stars
6,677
4.5 out of 5 stars
1,883
4.3 out of 5 stars
11,808
4.7 out of 5 stars
29,439
4.6 out of 5 stars
11,997
4.5 out of 5 stars
7,469
Price $8.31 $7.28 $6.54 $6.54 $5.99 $6.54
Product Description J-B Weld MarineWeld is a two-part epoxy cold weld system that provides strong, lasting repairs to multiple surfaces. J-B Weld MarineWeld is a two-part epoxy cold weld system that provides strong, lasting repairs to multiple surfaces. WaterWeld is a hand mixable two part epoxy putty stick that can cure under water and is ideal fro preparing plumbing, fuel tanks, tubs, showers and more! J-B Weld is The Original Cold Weld two-party epoxy system that provides strong, lasting repairs to many surfaces. KwikWeld is a fast setting version of The Original J-B Weld two-part epoxy that provides strong, lasting repairs to many surfaces ClearWeld is a clear, quick setting and multi-purpose two part epoxy solution in a re-sealable 25mL syringe!
Surface Application Aluminum, Fiberglass, Metal, Plastic/Composites and Wood. Metal, Plastic & PVC, Wood, Fiberglass, Aluminum, Carpet and Composites. Iron & Stainless Steel, Copper & Brass, Aluminum & Bronze, Fiberglass and Plastic & PVC. Metal, Wood, Plastic, Tile, PVC, Ceramic, Fiberglass, Concrete and more! Great For: Metal, Wood, Plastic, Tile, PVC, Ceramic, Fiberglass, Concrete & More Metal, Plastic & PVC, Wood, Concrete, Ceramic & Tile, Fiberglass and Glass.
Cure Color Dark Grey White Clear Dark Grey Dark Grey Clear
Set Time 4-6 Hours 5 Minutes 1 Minute 4-6 Hours 6 Minutes 5 Minutes
Cure Time 15-24 Hours 1 Hours 1 Hour 24 Hours 4-6 1 Hour
Strength (PSI) 5020 PSI 2350 PSI 1300 PSI 5020 PSI 3127 PSI 3900 PSI

What's in the box

  • JBWeld 8272UK

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    Customer reviews

    4.7 out of 5 stars
    4.7 out of 5
    6,677 global ratings

    Customers say

    Customers like the performance, durability, quality and ease of use of the bonding adhesives. They mention that it works well, it holds up fine and that it's the best marine epoxy. They are also happy with value. However, some customers differ on leakage, adhesion, and drying time.

    AI-generated from the text of customer reviews

    130 customers mention118 positive12 negative

    Customers are satisfied with the performance of the bonding adhesive. For example, they mention it works well on aluminum, pontoon boats, and plastic. Some say it's waterproof and works on all sorts of materials.

    "...Really works well!" Read more

    "It work amazing well for a 2 inches crack on a hot water line." Read more

    "Works well and is rock hard when dry." Read more

    "I used this product around our pool skimmer. Worked great." Read more

    125 customers mention90 positive35 negative

    Customers like the durability of the bonding adhesive. They say it's very tough, holds steel in a sheering capacity, and sticks together permanently. Some say it keeps their aluminum pontoon afloat and serves well to protect plastic ballast.

    "This stuff has to be the toughest 2-part epoxy there is short of whatever NASA uses. Really works well!" Read more

    "Used on bottom of jet ski near impeller and seems to hold up fine even with all the pressure of water going across it.***DO NOT USE IN POOLS...." Read more

    "...The steps form hairline cracks with age and mine suffered a split. I repaired the spit years ago with JB Weld but is was not attractive...." Read more

    "...No leaks and holding up great so far!" Read more

    113 customers mention109 positive4 negative

    Customers are satisfied with the quality of the bonding adhesive. They mention that it's better than the regular stuff, amazing, and the best marine epoxy. Some say that it has a long cure time, but it'll work under water. Overall, customers are happy with the product's quality.

    "JB Weld is good stuff and a trusted brand. Used this to repair leak in a high temp plating bath. Would use again." Read more

    "Perfect for my need." Read more

    "...Was very strong easy to mix and water resistant." Read more

    "This is an excellent epoxy, it is a long cure time vs the quick set epoxy.I used this to reattach a flint to a Bernzomatic TX405 Spark Lighter...." Read more

    47 customers mention47 positive0 negative

    Customers find the bonding adhesives easy to work with, apply, and mix. They say it's simple and easy to set up as hard as a rock. Customers also say it works great and is not messy to use.

    "...So, I buy this after doing some research, and I find it ery simple and easy to mix...." Read more

    "Works well and is rock hard when dry." Read more

    "Easy to use" Read more

    "...I’m very pleased with the result. The epoxy was easy to use. It does require a long time to dry and cure, so plan accordingly...." Read more

    22 customers mention22 positive0 negative

    Customers appreciate the value of the bonding adhesive. They say it's a good buy for the money, and saves them time and money.

    "...Big fan.Value: Great price compared to local purchase.Repeat buyer." Read more

    "...to fill your boat with water in 3 hours..Glad it's fixed , and inexpensive." Read more

    "...The leak is gone, and saved me over $100." Read more

    "...Worth every penny!" Read more

    60 customers mention40 positive20 negative

    Customers are mixed about the leakage of the bonding adhesive. Some mention that it works great to seal it, while others say that it starts to leak.

    "...a new shut off valve... once I got all of that on and together... no more leaks.." Read more

    "...have to do it a couple of times but finally, now I can water my plants without any leaking...." Read more

    "...Water was leaking into my kitchen ceiling. I masked off a small area with tape and put a thick coat over the area...." Read more

    "...This product worked great to seal it, and it looked flawless. The finish color of the epoxy is gray...." Read more

    22 customers mention15 positive7 negative

    Customers have mixed opinions about the adhesion of the bonding adhesive. Some mention that it has good adhesiveness, sticks to the places they need patched, and is good for water tight applications. However, others say that it barely adheres and does not bind.

    "...It is amazingly strong and will adhere to any surface. Let me warn you, whatever you use this on will be impossible to take a part...." Read more

    "...Does not have any odor. Sticks to most anything. Used to repair a wooden chair & a brass candle holder & a plastic light socket holder." Read more

    "...it is sticky, it seems like you can shape it, i would not tap this, i don't think its strong enough for that...." Read more

    "...The biggest issue was the 15 hour full cure time. Seems like good adhesion. With a little sanding it repaired a plastic refrigerator shelf." Read more

    22 customers mention10 positive12 negative

    Customers have mixed opinions about the drying time of the bonding adhesive. Some say it dries very hard and sticks to plastic like white on rice, while others say it takes a long time to dry and cure. Some customers also mention that it stains when it ages, while other customers say it doesn't.

    "...The epoxy was easy to use. It does require a long time to dry and cure, so plan accordingly...." Read more

    "...That is all there is too it. Dry's fast and is completely waterproof." Read more

    "...The only problem is I have to buy more later. It dries very hard...." Read more

    "...I found this epoxy easy to mix and apply. It was quick drying and did not sink. It was easy to sand down." Read more

    Use as directed
    5 Stars
    Use as directed
    This product worked great on my 24ft pontoon boat. Had a small leak on tack weld for the keel. Clean and prepared the small spot. Mixed the two JB Marine Weld tubes as per direction. Applied to spot and let it sit for 48 hrs although the directions said 24 hrs. Then took my boat out and found no leaks.
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    Top reviews from the United States

    Earl Parker II
    5.0 out of 5 stars Great for virtually any type of repair
    Reviewed in the United States on April 23, 2024
    Size: 2 ozVerified Purchase
    This stuff has to be the toughest 2-part epoxy there is short of whatever NASA uses. Really works well!
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    kallen
    5.0 out of 5 stars Good Stuff
    Reviewed in the United States on March 20, 2024
    Size: 2 ozVerified Purchase
    JB Weld is good stuff and a trusted brand. Used this to repair leak in a high temp plating bath. Would use again.
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    anann
    5.0 out of 5 stars It needs more the 4 hour to dry to achieve the optimum performance
    Reviewed in the United States on March 18, 2024
    Size: 2 ozVerified Purchase
    It work amazing well for a 2 inches crack on a hot water line.
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    c. lee
    4.0 out of 5 stars Follow the directions and it will work on most anything...
    Reviewed in the United States on August 10, 2016
    Size: 2 ozVerified Purchase
    I had a leak coming from some polybutylene pipe which was recalled a coupe of decades back.. my mobile home is full of it.. I have had to piece new piping all over this place because of pinhole leaks. I bought this as a first option to make the leak stop... it was in a hard plave to get to... a toilet right next to a bathtub and it was the pipe coming out of the floor to the toilet.. the intake I guess you could call it... My leak was just under the shut off valve so shutting that off was not working. water still leaked.

    So, I buy this after doing some research, and I find it ery simple and easy to mix. My assumption was that this would work on wet surfaces, not that it was to be used in marine style applications then becomes waterproof...

    I put it on but the water was still leaking... didnt really work...

    I then shut the water off for a day , removed the old weld, cleaned up like the directions say to and reapplied the MarineWeld to the pinhole area and then I decided to just put it around the entire pipe.

    I wait another day and see that it has dried and cured. turn the water on and the leak was slowed but not stopped..

    I am ok with this product because when used properly it can fix certain things.. I am not so certain the poly pipe is meant to be used at all , let alone patched with Marineweld..

    Im a girl. I tried to do it the least invasive way... but I ended up sawing out the entire shut off valve and the bad part of the pipe with it.. bought some same size flex.. 1/2" and a new shut off valve... once I got all of that on and together... no more leaks..
    6 people found this helpful
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    Chris B.
    5.0 out of 5 stars JB IS THE BEST
    Reviewed in the United States on February 18, 2024
    Size: 2 ozVerified Purchase
    CHECK THE CURE TIME IN HOURS, JB MAKES 3 DIFFERENT CURE SPEEDS, WHEN YOU MIX THE A + B YOU END UP WITH A GRAY SO IF YOUR BOAT IS WHITE YOU'LL HAVE TO PAINT OVER IT IF THE GLUE IS VISIBLE. IS FAIRLY THICK WHEN MIXED SO IT WON'T RUN ANYWHERE, I USED IT TO PLUG HOLES FROM THE OLD THROTTLE CONTROL THAT I CHANGED OUT. I PUT TAPE OVER THE HOLES ON THE VISIBLE SIDE AND STUCK THE GLUE ON THE NON-VISIBLE BACK SIDE OF THE FIBERGLASS. SO THERE JUST A LITTLE GRAY SPOT I HAVE TO PAINT OVER AFTER PULLING THE TAPE BACK OFF AFTER IT SET.
    One person found this helpful
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    William
    5.0 out of 5 stars Great stuff
    Reviewed in the United States on March 8, 2024
    Size: 2 ozVerified Purchase
    Perfect for my need.
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    mark
    5.0 out of 5 stars Rock hard
    Reviewed in the United States on February 16, 2024
    Size: 2 ozVerified Purchase
    Works well and is rock hard when dry.
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    gene
    5.0 out of 5 stars Very good
    Reviewed in the United States on March 6, 2024
    Size: 2 ozVerified Purchase
    Easy to use
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    Top reviews from other countries

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    Jason
    5.0 out of 5 stars Simple and effective
    Reviewed in Canada on March 10, 2024
    Size: 2 ozVerified Purchase
    Easy to use. Thoroughly mix harder with resin. Apply and wait until cured. Rock solid for many applications especially for oils etc.
    Report
    Duzzitwerk
    5.0 out of 5 stars Amazing stuff
    Reviewed in the United Kingdom on October 28, 2023
    Size: 2 ozVerified Purchase
    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!
    3 people found this helpful
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    Ciprimoni
    5.0 out of 5 stars Super
    Reviewed in Spain on April 26, 2023
    Size: 2 ozVerified Purchase
    Un adhesivo muy bueno! Aguanta mucho tiempo después de abrir los tubos!
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    Esteban González
    5.0 out of 5 stars tarda horas en endurecer para fijar las piezas, pero cuando seca queda sólido de verdad
    Reviewed in Mexico on June 23, 2021
    Size: 2 ozVerified Purchase
    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
    3 people found this helpful
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    Pume
    5.0 out of 5 stars Ottima
    Reviewed in Italy on December 29, 2020
    Size: 2 ozVerified Purchase
    The media could not be loaded.
     Colla pazzesca!usata per attaccare delle chiusure ammortizzate sopra le cerniere dei pensili,con pochissima colla diventa come il cemento,avevo pochissima fiducia e invece funziona alla grande,consigliatissima.
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    Pume
    5.0 out of 5 stars Ottima
    Reviewed in Italy on December 29, 2020
    Colla pazzesca!usata per attaccare delle chiusure ammortizzate sopra le cerniere dei pensili,con pochissima colla diventa come il cemento,avevo pochissima fiducia e invece funziona alla grande,consigliatissima.
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