3M Scotch-Weld Structural Plastic Adhesive DP8010, Blue, Extremely Strong, Plastic to Metal Bonding, 45 mL (1.52 fl oz) Duo-Pak

Expensive, but strong. Definitely worth it if you need to make a critical repair, especially on low surface energy materials that don't take to traditional adhesives. A tab completely snapped off of my polypropylene car bumper, and this was able to easily and securely reattach it. I was amazed at how strong the repair was over a very thin and narrow bond line. However, it does come with its quirks. First, you need to have the proper dispensing gun: I got a compatible generic one off of eBay since the genuine 3M guns are expensive, especially for a DIYer. Next, you definitely want to get the 3M mixing nozzles. Getting the right ratio squirting and mixing by hand is very difficult; I tried this once and it probably had just a little to much activator which significantly reduced the work time. Finally, it's a little harder to work since it's thicker and doesn't really run. You also need to make sure the repair gap isn't so small that all the adhesive gets squeezed out, or else your repair won't stick. For those types of really thin/close fitting repairs, you might be better off using superglue and a LSE material primer since it's a lot better at wicking into cracks

I purchased this glue to stick some Tefzel plastic brackets to the side of a gearbox that runs at around 115 Centigrade. Tefzel is the chemical name for Teflon so this is one heck of a challenge to stick teflon to something that has a surface temperature hotter than boiling water. This stuff works and you could hand 10lbs off the brackets after it stuck. There are just 2 drawbacks. It takes about 4-6 minutes to set even when the surface is already at 115C so for vertical surfaces you need to mechanically hold it in place whilst it sets. The other drawback is cost. Holy mackerel is this stuff expensive. For a one-off application it made sense but I wouldn't like to be paying for this stuff regularly.

On the plus side, this will bind plastics that are very difficult for most glues to stick to. It creates an absolutely solid bond. But with great powers comes great other issues to consider. It's expensive. You do need the official 3M dispenser and mixing tips, which are also expensive. It smells pretty bad while drying, and it takes 48 hours for the smell to fully dissipate, so don't try to use it indoors in your office or home if you're going to be there. It's really sticky and you do not want this on your hands. The first time I used it to bond two plastic surfaces together I put it on not thick enough, so do make sure you're applying enough. I used it to bind a PLA print to a Pelican case, two plastics which really don't want to be glued together, and it's totally solid. I'm giving it 5 stars because when you need a glue like this, this is the glue you need. As the product description says, this is not for consumer use, and oh yeah it's definitely not. Updated review: the first two applicators I used of this worked but I had major problems dispensing it. The high-volume component simply squirted out to the side of the nozzle. This resulted in a mess, and also too much of the low-volume component which made it cure too fast. I went through a bunch of nozzles and couldn't get it to work. Turns out the problem is the most common nozzles are designed for 1:1 or 2:1 ratios. That type of nozzle will NOT work with this glue. You need to get a proper 3M 10:1 nozzle. This is an orange tip, square nozzle part # 7100007806.

Worked perfectly for PA intake manifold repair. Does NOT come with any nozzles though. So make sure you get the right ones.

They say that for many types of plastics, this is absolutely *the* best adhesive you can possibly get. You *do* need mixing tips; you should use the special gun to extrude it as well. I had the special 10:1 tips, and improvised the gun with my laser cutter. Still, neither of the two things I glued with it worked at all. Now, I'm no polymer materials engineer or plastic chemist, so maybe I just happened to pick the wrong types of plastics (and the AI I consulted about it was also wrong), but I'm pretty sure this isn't going to make a bond that's anywhere near as strong as the underlying material (like you can get with other materials and adhesives). And not only is this stuff expensive, all the paraphernalia you need to use it is also expensive. Also, word to the wise: Lots of chemical products say "use in a well-ventilated area", etc., and most of us nod and avoid huffing whatever it is. I definitely recommend you use this stuff in a *well*-ventilated area. It's definitely an eye/airway irritant.

I used this to repair a polyethylene water tank on my boat. Fantastic bond!!! Super strong. Used it for other gluing applications, too. Not cheap, and you need a new applicator tip with each use, but you get what you pay for. This is one of 3M’s better adhesive products.

Finding the right gun and tips was a nightmare. I spent way too much money and time trying to find the guns and tips, to find out that the ONLY guns that work are 3M's. And 3M guns are VERY expensive compared to other guns on the market. It would have helped if 3M would have been entirely forthcoming about the required guns and tips you will need to use this product. There are other products that will bond plastic to plastic. I would suggest looking at all options for the type of plastic you are trying to bond with, and look for other products that will bond effectively, and maybe save a bunch of money on everything you will need to use this product

I glued the hardtop on my 1997 Geo Tracker, with a Pro-Top hardtop. It worked perfect super strong. Takes 2 days to dry. Make sure you find the correct gun to dispense it. Only 2 companies offer it.