J-B Weld
Urethane Adhesive System, Black, 25ml
Made in Usa
Model #
50139
Item #
240886
J-B Weld

Urethane Adhesive System, Black, 25ml

Urethane Adhesive System, Black, 25ml is rated 2.8 out of 5 by 6.
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$9.99
In stock
Model #
50139
Item #
240886

Online price. In-store price & availability may vary.

In stock
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Description
25 ml, Black, Plastic Bonder Syringe, 2 Part Urethane Adhesive System That Provides Strong & Lasting Repairs & Works On Thermoset, Carbone Fiber Composites, Thermoplastics, Coated Metals, Concrete & More, Sets In 15 Minutes & Can Be Sanded After 30 Minutes.
Specifications
Specifications
SKU240886
Weight0.100000
UPC00043425501394
Country of OriginUS
Package Width4.38
Package Length1.25
Package Height8.75
Model Number50139
BrandJ-B Weld
Manufacturer NameJ-B WELD CO
Rated 5 out of 5 by from I love this stuff! For the people saying it never hardens (gummy but sorta-set) or remains sticky (touching it leaves something on your skin), I have only found that to happen when the mix of the two components is not 50/50 enough. Mind how much of each you squeeze out, and be sure to mix it all thoroughly up. In my (pretty extensive...I've truly used this for YEARS now) experience, if it is 'flexibly-wobbly' or tacky forever, but not sticky or slimy, you have a bit too much 'black' in the mix. The 'sticky-or-slimy tacky' variant is when you have too much 'white'. Make note that the syringe plungers can easily 'stick' on one cylinder or the other, and that can lead you to have 'strange mixes'. If you notice a mix coming up an unexpected color, you CAN generally mix in more of the 'missing agent' to correct the mistake if done before the compound gets to cure too much to mix. Just mix in more of the stuff it's hopefully short of, and use as usual. The cure time will be 'odd', but not too much longer than normal if you correct it in time. If you get desperate to be able to have it 'set properly', make a much larger batch of it. Sticky cylinders are less likely to be an issue 'in the long run', and the unevenness evens out. Another option is to get those mixing-tube-nozzles, that does a pretty good job of things too. Squeeze out a 'dead portion' before using the mix from the tube, just to avoid the goopy-problem if you had the cylinders stick or 'warp' a bit. I use this "Plastic Bonder" stuff for a ton of different purposes. I've found it to be amazing for helping to bond the interior plastics in my 1996 Honda Civic. The stuff marked "PP" (assuming Polypropylene?) works great with it. It's not at all sticky or goopy when cured, if mixed correctly and in the proper "50/50" ratio of components. In my use in my Honda PP stuff, it dries solidly but 'sorta-flexibly'? I wouldn't want it to be expected to flex for a plastic joint, but it can flex a bit without breaking. When it does break, it's sorta like 'cement made of plastic' and it rip-deforms to separate along a weaker line of the material. It's really hard to just /stress/ apart, as long as you clean the surface and 'sand the area' a bit to rough the surface up. It grabs WAY better when done that way. Very take note of if you try to bind interior plastics that you have cleaned or waxed in the past...this may or may not manage to grab anyway if you rough the surface up, but the BEST bond is gotten by my making sure it is CLEAN plastic. I get some in the break-area itself, then generally overlay the break with some more plastic bonder. For broken 'usable plastic areas' (again, this is me heavily using it to fix up interior Civic door panels, supports, and structures inside the panels in this 26 year old car) I may add an on-lay of 'a bit of fiberglass cloth' or 'an emptied and cleaned tea bag' to reinforce things, and generally lay the bonder on thicker on the inside. Just put some down for the break and a bit extra, embed the material you want to use to spread the strain of future use, then promptly cover it with more of the same mix-batch. Try not to ever need to, but when I've HAD to add more after curing, I've used 80-120 grain sandpaper to super-rough-up the plastic bonder's surface. It's...alright? It doesn't seem to bond excellently that way, but it works well-enough if you're desperate. Try to avoid it. I'm (hopefully) attaching a photo of one of my Honda PP bonds. Don't mind the ugly bond...it was for my battery-cover under the hood, and it's only ugly because I was lazy and didn't bother to smooth it very well. I never thought anyone would ever need to see it, and now here I am, writing a review...
Date published: 2022-08-13
Rated 1 out of 5 by from Does not harden like their other products. Bought this to use on a fiberglass audio horn flare. After 48 hours it’s still gummy. Not a bonder, just a gummer.
Date published: 2022-08-11
Rated 5 out of 5 by from Very happy with this product! I've used this product on multiple plastic motorcycle body repairs. When mixed properly, it forms a hard permanent bond. I've never had an issue with it unless it's been improperly mixed. It has to be a one to one mixture! If I've reused the same applicator sometimes it won't come out of the applicator evenly then it will not mix properly and just forms a soft putty like mixture. My fault not the product.
Date published: 2022-08-10
Rated 1 out of 5 by from JB weld plastic bonder I find the same to be true, I mixed as directions and applied it has been 2 days and still mushy and is 85 degrees here. So I scraped off applied again has been 4 hours still not hard so I tried to dry with a hair dryer and is not Harding!
Date published: 2022-08-08
Rated 3 out of 5 by from Misleading description Description says this plastic welder in syringe cures to a HARD substance. Misleading because it cures to a flexible rubbery substance. Not technically hard as in rock hard. I used this product to attempt repairing a cracked black hard plastic coffee pot knob and it did not hold because all i got was a flexible rubber like bond. If you mix up a test piece blob of this stuff, after it cures you will see that you are able to bend it like rubber and then it returns to shape. If you need a bond that will remain flexible like rubber, then yeah i would recomend it and then i would increase the star rateing. ● JB Weld please amend your discription of this item to state that its like a flexible rubber. As a plastic bonder, some people might be mislead thinking they are going to get a rock hard plastic like bond. Which they will not.
Date published: 2022-08-07
Rated 2 out of 5 by from mixed results depending. Sometimes this works great… other times there are massive bubbles of air in two part tube. this does NOT cure to sanding strength in 30 minutes… after 24 hours its sometimes is not hard enough to sand or drill. it does get gummy after about 30 minutes.. then may or may not ever get solid. try at your own risk!
Date published: 2022-08-02
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