That is surprising. I know Plexus can glue plastics and I have used it successfully on snowmobiles when I smacked those stupid things beside the trails that seldom move...most people call them trees.
You can also weld plastics very easily. Get your heat in the 500ļ range, apply some filler rod and add 5-6 pounds of pressure and you will get very good adhesion. I've made plastic tanks this way for boats that passed hydraulic testing.
Here is a tip though...for filler wire...try to cut some plastic off the part you are trying to weld if you can. It is hard to tell different plastics apart. For instance when I weld up snowmobile skis (they are plastic now) I shave filler wire off a spot that is not noticeable to make sure the weld will be of the same plastic the ski is made out of.
I have no intention of traveling from birth to the grave in a manicured and well preserved body; but rather I will skid in sideways, totally beat up, completely worn out, utterly exhausted and jump off my tractor and loudly yell, "Wow, this is what it took to feed a nation!"