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💥 Fix it once, fix it forever with J-B Weld’s powerhouse epoxy!
J-B Weld 8281 Original Cold-Weld Epoxy is a professional-grade, two-part epoxy resin that forms a permanent, high-strength bond with a tensile strength of 5020 PSI. It sets in 4-6 hours and fully cures within 24 hours, maintaining durability up to 550ºF. Ideal for a wide range of materials including metal, plastic, wood, and concrete, it’s the go-to solution for automotive, household, plumbing, marine, and craft repairs requiring waterproof and heat-resistant performance.







| Asin | B014OVHAOY |
| Best Sellers Rank | 9,916 in DIY & Tools (See Top 100 in DIY & Tools) 16 in Metal Filled Epoxies |
| Brand | J-B Weld |
| Colour | dark grey |
| Compatible Material | Metal, Plastic & PVC, Wood, Concrete, Ceramic & Tile, Fiberglass |
| Container Type | Tube |
| Customer Reviews | 4.7 4.7 out of 5 stars (9,589) 4.7 out of 5 stars |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00043425082817 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | Plastic Weld |
| Item Volume | 295.74 Millilitres |
| Item Weight | 3.2 Ounces |
| Manufacturer | JB WELD LTD |
| Manufacturer Part Number | J-B Weld - 8281 |
| Material | Epoxy Resin |
| Model Number | 8281 |
| Number Of Pieces | 1 |
| Other Special Features Of The Product | High strength and temperature resistance |
| Specific Uses For Product | Various: household repairs, automotive, plumbing, marine, crafts and more |
| Tensile Strength | 5020 Pounds Per Square Inch |
| Unit Count | 147.8 millilitre |
| Upc | 043425082817 |
| Viscosity Level | High |
| Water Resistance Level | Waterproof |
User
Is an excellent product
I have to admit that I’m quite bias and like this product, it has multiple uses and is stable once hardened. 1 to 1 ratio makes mixing it easy and it bonds well to clean surfaces. I used it this time to bond 2 halves of a small bracket eaten by rust (the bracket was of a car and is not made anymore) Half of the bracket had virtually dissolved and you could see through it in places. I managed to get another bracket in similar condition ( the bracket is mirrored down a centreline ) dissolved the rust using another product cleaned them up and cut the worst one in half. I used the good half and bonded it to the better one and presto new bracket.I had to go this route as the brackets were too thin to weld.This JB Weld is such a good product to have around it gives an alternative when others won’t work.
User
Very messy but very effective
I bought to repair 6mm bolt fixing points ABS plastic carrying handle and mud-guard on a mobility scooter. The bolts secure a heavy gearbox, steel chassis, real axle, wheels and motor at least 15Kg. This took 2 attempts. The first failed as I tried to minimise the visual appearance of the repair and didnt use sufiffient thickness. The second attempt was a minimum of 2 mm thick and has held now for over 6 months of regular use. The repair is very visible from the underside. As with any epoxy type 'glue' it is easy to get it everywhere. I would strongly recommend gloves and glasses, and I'm someone very used to getting glues and paints on my hands. It's very black and even with acetone is hard to clean off body parts, the dining table, furniture and places other family members may not appreciate it sticking to. But this is a good thing. It's glue. We don't want it to come off stuff! JB Weld is more effective than plain epoxy adhesive but not as subtle. It sticks to things that epoxy can't. It sets harder than epoxy. In fact it sets harder than pretty much anything that I've ever squeezed out of tube! When something carries the same health warning 4 times and uses words like "respirator" and "First Aid" you know it means business! It will sand down but it's hard going by hand and clogs abrasives, So as a means of sticking stuff together it's great, but at least when I use it, It sure ain't pretty! it says setting time is 4 hours, but working time is around 20 minutes. Setting time just means it is no longer liquid, in much the same way cake mix solidifies in the oven. At this point its about as strong as cake. Unlike cake, JB Weld takes 24 hours to get strength (I found out the hard way) .
User
Decent product, super strong but long cure time
Bought this product to repair some things around the house.It's forms a much stronger bond than any of the other JB Weld products, at the cost of time. The Kqik Weld epoxies are decent, but I always find they pull clean off a surface given time or a sudden impact, even after roughing up the surface.This one on the other hand refuses to come off, works great for metal, plastic and wood, the only issue is it takes multiple hours to firm (6+) up and really does take a full 24 hours to fully cure.Use clamps to keep everything in place, don't mess with it for 24 hours and you'll be set for a really solid bond.
User
Strong, permanent
I've used J-B Cold-Weld Epoxy on a variety of projects, and it has consistently delivered impressive results. This product is a go-to solution for strong, permanent repairs on a wide range of materials, including metal, wood, plastic, and more. The two-part formula is easy to use—just mix equal parts of the resin and hardener, apply it to the surface, and let it cure.One of the standout features of J-B Cold-Weld is its incredible bonding strength. Once cured, it forms a solid, durable bond that can withstand high stress and pressure. I’ve used it for both household repairs and automotive fixes, and it has held up exceptionally well under different conditions. Whether you need to patch a crack in a metal frame, fix a broken tool handle, or repair a household item, this epoxy won’t let you down.Another thing I appreciate is the versatility in finishing. After the epoxy has fully cured, it can be sanded, drilled, or painted, which is perfect for creating seamless repairs that look professional. The cure time is reasonable, giving you enough time to adjust the application before it starts setting, but it doesn’t take an excessive amount of time to fully harden either.Overall, J-B Cold-Weld Epoxy is a reliable and effective solution for both small and large repair projects. It’s affordable, easy to use, and delivers results that last. I highly recommend it to anyone who needs a tough, permanent fix for their repair needs.
User
Ease of application and final levelling by Graded sanding.
This easy to use product solved the outstanding issue remaining on ensuring a shower door tile surface was level enough to allow the door sweep seal to function as designed. 100% effective.
User
Highly Recommended
The uses for this JB Weld are endless,FYIIt is odourless.It gives you plenty of time before it starts to set which is around 30 mins before it starts to hold it's shape.In 24 hours it's set as hard as stone.You can sand it file it etc.Example:I used it to re-bond a metal hinge onto the back of a glass oven door and years later it's still holding fine even with the all the heat and constant opening and shutting the door !Very tough stuff just make sure the areas to be bonded are super clean and grease free!I have been using this for the last 5+ years for all manner of things and it has not failed yet.
User
Very strong bond with gap filling capability
Easy to mix. Sets slowly (over an hour's working time) and eventually (12+ hours) forms an extremely strong bond. I used it to fix a golf club shaft into a club head. It was ideal for this. It is liquid constituency so needs to fully supported whilst it sets.
User
Impressive, once it's cured
Took a fair bit longer to 'go off' than anticipated - probably due to the low ambient temperature - however after leaving things alone for 48 hours by 'eck it was rock solid. I didn't use it as an adhesive as such, more of a filler, on a rear diff alloy casing on my ATV on which I'd manged to break off a small, but significant, part of the drain plug housing when trying to remove the really well-seized plug. This resulted in a subsequent continuous seepage of oil which is not great. JB-Weld was liberally applied and so far, touch wood, no more oil seepage. A replacement housing would have cost me around £450 so even though JB-Weld is not cheap it was a bargain for me. Highly recommended.
User
Come da descrizione
Ottimo prodotto
User
Good
As described
User
Klasse 2 Komponenten-Kleber
Bisher das beste was mir in 30 Jahren (davon 10 als hauptberuflicher Handwerker) in der Produktkategorie untergekommen ist. Alles andere war entweder von der Klebekraft oder -dauer nicht überzeugend.Für schnelle Klebungen aufgrund der Verarbeitungszeit nicht geeignet, hier gibt es andere Produkte des Herstellers wie z.B. Clear Weld.Bisher geklebte Kombinationen/Materialien:- Aluminium auf Glas (Beides angeraut) von 2 Seifenspendern. Hier haben 2 Komponentenkleber von 3 anderen Herstellern nach wenigen Monaten versagt, der längste hielt ca. 9 Monate, der Kleber vom Hersteller knapp 4 Jahre. Aktuell hält der Kleber seit 5 Jahren. Möglich, dass hier das Problem die permanente Feuchtigkeit ist. Diesen Kleber interessiert das anscheinend nicht.- Holz/Möbelspanplatte: Hier hat durch ein Missgeschick ein mit 2 Schrauben befestigter Winkel großflächig Material ausgebrochen. Der Winkel musste wieder an die selbe Stelle, also musste Material aufgefüllt werden. Lose und lockere Späne entfernt, ausgesaugt, Kleber angerührt, auf eine 2ml Spritze gezogen und zuerst die kleinsten Löcher verfüllt. Anschließend die senkrechte Kante mit Isolierband abgeklebt und mit der Spritze blasenfrei verfüllt. 24h aushärten lassen, danach war das Material so fest, dass ich Löcher vorbohren musste weil die Spax-Schrauben sich nicht selbst eindrehen ließen. Die Garderobe hängt jetzt wieder seit ca. 7 Monaten an Ort und Stelle.Zum Kleber selbst:Verarbeitung: Die Verarbeitung ist einfach. 2 gleich große Stränge nebeneinander legen, sorgfältig vermischen bis die Farbe gleichmäßig ist. Lieber 2 Minuten länger mischen, die Verarbeitungszeit liegt bei 4 Stunden. Endfestigkeit ist nach ca. 24h erreicht. Das Produkt eignet sich also nicht für Ungeduldige.Konsistenz: Nach dem Mischen ist der Kleber so dünnflüssig, dass er sich ohne weiteres auf Spritzen (ohne Kanüle) ziehen lässt, was auch kleinere Klebestellen zulässt. Dies kann gleichzeitig auch ein Nachteil sein, Kleben von senkrechten Stellen führt unweigerlich zum Verlaufen des Klebers. Vorteil der Dünnflüssigkeit: Er verläuft zu waagerechten Oberflächen, was z.B. beim Verfüllen von Löchern extrem praktisch ist so lange man die Menge nicht überdosiert.Nach dem Aushärten ist der Kleber extrem hart. Löcher müssen gebohrt werden. Weder ein Stichel noch neue Spax-Schrauben können sich in das Material einarbeiten, sie kratzen nur an der Oberfläche.Farbe: Vermischt und ausgehärtet ist der Kleber Dunkelgrau, also in den meisten Fällen nicht für sichtbare Stellen geeignet.Haltbarkeit: Der aktuelle Kauf war ein Vorsorgekauf, der Erstkauf (und erste Verwendung) war vor ca. 5 Jahren ein 2x28,4g Gebinde von einem anderen Anbieter, mittlerweile zu 2 Dritteln leer. Letzter Gebrauch vor 7 Monaten, die Konsistenz hat sich in der Zeit nicht verändert, insofern also sehr gute Produkt-Haltbarkeit. Der Hersteller gibt bis zu 15 Jahre an.Vorbereitungen zum Kleben:Sehr glatte Untergründe bereite ich durch anschleifen vor, Schmirgel mit 80er Körnung ist hier ideal. Funktioniert auch bei Glas (hier nehme ich eine 120er Körnung) so lange es kein Sicherheitsglas ist: Den Außenbereich der zu klebenden Stelle großzügig mit Isolierband abkleben und die Klebestelle anrauhen.Zu verklebende Untergründe reinige ich grundsätzlich mehrfach, zuerst mit Glasreiniger, anschließend mit Spiritus.3 Blätter Küchenrolle haben sich als Reinigungstücher bewährt, erst mit Glasreiniger reinigen, mit separatem Blatt trocken wischen, neues Blatt für den Spiritus, verdunsten lassen, kleben. Schont zwar nicht die Umwelt aber dafür hält die Klebestelle.
User
Un poco caro.
Pega muy bien, a ver si lo venden más barato
User
Excelente producto!
Yo empecé a revisar acerca de pegamentos y encotré este que parecía demasiado bueno para ser verdad... Una, verdadera joya! tiene un gris rata horrible y huele aún peor (antes de secarse, después es completamente inodoro), pero si se usa siguiendo las instrucciones y con la proporciones 50/50 es sólido como el acero. Lo he utilizado desde para pegar partes móviles de jugetes, hasta para sellar una tubería picada de cobre y reparar una de PVC, esto tiene cerca de seis meses y no hay ningún rastro de que se afloje o se diluya. Tengan en cuenta que es un pegamento epóxico, no instantaneo; una vez aplicado, toma como 4-6 H. que se empiece a solidificar (aqui todavia se puede ajustar o mover la pieza) a las 24 H. esta completamente solidificado y a las 36 está completamente curado.
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