Will it bond permenantly to PVC? I've got a sample glued up in the basement, but the stuff takes forever to cure.

I seriously doubt it.

I'm not sure of the molecular structure of PVC but the stuff used to weld it together is a solvent, not a "cement", that actually melts the PVC. If there was a cement that could be used to marry it to a dissimilar material someone would have figured that out already. It's used in so many construction trades that the "want" to fix it to another medium is decades old.

You can get a watertight bond using the solvent. Another aside, UV rays eat up PVC quickly. Of course you must have a submerged application if you're using 5200.

sticks to abs plastic quite well. not sure about PVC.

Its for a mold, and the reason I tried 5200 is that it was thick and filled the gaps nicely.

The PVC cement is very thin, and the PVC bond weld (2 part) stuff peels off when you pull off the part.

I've had pretty good results with PVC pipe for round parts, and Azek for flat parts, but I want to do a flat with a round, so I need to "weld" pvc pipe to azek(pvc board)

Bill

PolyVinyl Chloride (PVC) is a solid. 3M 5200 sticks to it quite well. It is used with PVC ports attached to polyester fiberglass sailboats all over the world.

Would 5200 work on filling a gouge in a rotomolded hull?

yes.