Simply 50139 J-B Weld PlasticBonder- Black,25 ml

It just works. Despite some reviews stating that it is "too wet" and wrongly criticising the incredibly simple cap, this stuff is easy to mix, easy to use (when applying a little common sense) and absolutely tough as old boots. Twist and pull off the cap to open the twin tube dispenser and give the tubes a few taps to make sure there's no air trapped in either, push the plunger to squeeze out the 2 components, ensuring that they come out in equal amounts, mix well and, unless you need a really liquid material, leave for around 5 minutes, possibly even a little longer if you're using it on a vertical surface, so that it thickens up a bit. Do make sure to replace the cap the right way round, though - quite easy to do, since the component liquids are black and white. Once applied, it sets in 20 to 30 minutes (rarely the 15 minutes stated on the packaging), so you will have time to shape and smooth it as it starts to cure and might need to hold, clamp or tape a joint in place for a while. Other than that, once it has fully cured (I ended up leaving it for 24 hours, just to make sure, as it was still soft enough to indent with a fingernail, even after a couple of hours) it is both sandable and any overspill can be cut off or shaped with a sharp blade. I can only guess that those who have said it "didn't set" hadn't taken care to make sure there were equal amounts of the two components before mixing, as it is much like any 2 pack type adhesive or filler - too little hardener/activator means the product won't cure and harden. Honestly, when mixed and applied correctly, this product is so good that I have absolutely no issues with it and have ordered more for various other plastic repairs I need to do! Given how good it is, I think it's pretty good value, too.

This is great stuff, the tubes are great no mess just twist off the cap and squirt it out, due to the tube design the glue is not going off between uses, sets quickly in approx. 30mins but fully cured in 24hours, then its rock hard and does not budge, great for me for all the little fixes, handy to have a tube ready to go, I also use the JB marine weld. fully recommend.

A really good plastic glue. A must if you're 3D printing and assembling parts. Very controllable if you're careful with how you push the syringe down - you can push out and mix small quantities and make your purchase last a good while. It's black and it sets black, but then I expect a lot of people are 3D printing with black filament where it blends in nicely. Despite the claims, you do get a stronger bond if you clamp for 24 hours. I've found this to be necessary when gluing metal to plastic, but for plastic to plastic applications then the manufacturer's recommended glue-setting times still hold true. Even better if your parts slide or click together in some way, so you can just add a dab of this glue and carry on - job done. For the price, the use you can get out of this glue, and its inherent strength, it's got to be 5 stars. I would like to try the Sealey structural MMA glue just for comparison purposes, but for most jobs, this will more than do.

Sets incredibly hard in about 15 minutes, allowing you to fill structural gaps and sand it down flush. I used it to fix a vacuum cleaner hose and worked brilliantly. Thought of many more uses for it so can't fault it.

I used this to repair one area of an internal door trim card of a VW Golf, where the door mounting clips hold the trim card to the metal part of the door. I was unlucky in breaking one location on the trim card when pulling the it off the door to gain access inside. The round cheaper mounting clips will sometimes break and will need replacing, but to replace the entire door trim card is very very expensive! This plastic bonder glued the broken ABS plastic piece back to the trim card and cured rock solid and saved me a fortune. I gave it a few hours to cure to make sure it will be strong before re-assembling the door trim card. Mix it throughly and clean surfaces, apply liberally - high recommended.

Very strong and easy to use. I mended fibreglass and it is a perfect finish. Low odour and no leakage. Good thick texture and re-sealable. Very versatile - lots of uses. Value for money because once it adheres it does not move. Quick delivery too.

Brilliant for what i required. Only issue was i lost 3/4 of it as the the plunger was stuck, then gave way and launched 3/4 of it out of the tube. Had to order a second one to complete the job i was doing

Excellent plastic welder, managed to bond and fill losses on my soles of my shoes.

15 euros de contra Ren bolso aparte del producto

Excellent produit facile a utiliser fait parfaitement ce qu'il dit produit durable

Good quality

I bought this after doing some online research when my son accidentally broke the passenger-side mirror on my new 2026 Honda CR-V. The electronics, glass, and adjustment functions were still working perfectly, but the rotation/base area of the mirror had become loose, and I really did not want to spend around $300–$400 replacing the complete mirror assembly for one damaged section. I tried other products first without success, so I decided to give the J-B Weld Plastic Bonder a shot. I was honestly impressed. After applying it to the damaged area and holding everything in the correct position, within roughly 7 minutes the mirror already felt solid with practically no movement. For this type of repair, the bond feels extremely strong. Application is pretty straightforward, especially with the dual syringe that dispenses both components together. My main recommendation is to protect the surrounding area with painter’s tape before applying it. If you squeeze the syringe too aggressively, more product can come out than expected, and this stuff is definitely something you don’t want spreading over painted or visible surfaces. For me, this turned what could have been a several-hundred-dollar repair into a very inexpensive DIY fix. The syringe is also resealable, so I can keep the remaining product for another repair. Pros: Strong bond, sets quickly, easy to mix and apply, works well on automotive plastic, inexpensive compared with replacing the whole part, and reusable. Minor caution: Control the syringe carefully because it can dispense more adhesive than you need. Overall, this was a very impressive repair product and absolutely worth trying before replacing an expensive plastic automotive component that is otherwise still functional.

Great!!!