J-B Weld MarineWeld Syringe 2-Pack, White, UV Resistant, High-Strength & Impact Resistant, 25ml 2-Pack, 50172-2

Sehr sehr aber gutes Zeug. Da lohnt sich die Lieferung aus England. Gut ausdrückbar gut verrührbar wird nach 40 Minuten gummiartig so dass ich in mein offenes GFK Loch erst füllen und danach nach 40 Minuten mit einer Schraube versehen konnte es hält alles bombenfest. Auf dem Foto mit der Schraube war ein Versuch der Festigkeit.

This product sets up well, but not as hard as other epoxies from this company. The packages do not contain a lot of product, but are suitable for smaller repairs, and the adhesion is good. I would recommend it with the caveats above.

Used to provide a strong repair on a plastic kayak. Held up to the water for the whole year so far.

Note "mixing tray and stir stick" is an indentation on the plastic overwrap and a rounded wood stir stick that won't get into the corners of the "mixing tray". I wouldn't waste your time. I used a silicone glue tray (bought on Amazon). https://www.amazon.com/dp/B089QRP6J6 The glue cleans up readily with acetone. This mixes to a glue that is somewhere in the honey to maple syrup viscosity range, which was great for me, but if you are working on a vertical or overhead surface, the glue will need to be sealed on to the vertical or overhead surface. The color is close to "Polar White". @65F, well within the recommended use temperature, it had not set in 15min. I did get out a heat gun to warm the substrates up to 75F+ to see if it would light off and set. My project did require setting within a few hours. I was disappointed to discover an air bubble about half way into the dispensing. Perhaps 0.3ml? That was annoying, but I was able to press the two sides differently to get the volumes to match up again. As I was mixing a 1/3 of the tube at a time, it wasn't that bad, but a smaller amount might have had an issue. This is a first for me with two part glue syringes. While this has a resealable cap, it is up to the user to ensure that the right plug goes into the right hole, or you risk activating the remaining glue. The twist on portion of the tubes did not match any of the static mixers that I have, which was a disappointment as I had lots of things to patch, and that would have simplified the job greatly.

I've been a long time user (30 yrs) of J-B Weld products. Not sure what happened with this one. Maybe a bad batch. It would not harden. It was dispensed properly, mixed properly, aluminum was prepped and cleaned properly. When it dried it maintained a rubbery consistency. I was able to easily scrape it off with my fingers and putty knife. It's supposed to harden like metal and be able to be drilled, tapped or finished with a grinder. I will continue to use J-B Weld products. This one was just not working. Tried with one tube and returned.