Originally Posted by Fenlander
>>>I don't recommend cross gluing PVC-to-Hypalon. Plasticizer migration will destroy the bond in about a year.
I know you don't need a novice to confirm what you know but that fits in with the experience of this old Aerotec I've been refurbing. The previous owner did some repairs last year and used Hypalon patches on the PVC floor plus he glued two Hypalon davit patches onto the PVC tubes.
One year on these patches peeled off with almost no effort.
If a product like Kiilto TR Primer or Bostik Actisol SPW is used on the surface of the hypalon to halogenate it, and then a vinyl-type adhesive is used, the negative interaction can be mitigated...
But, it's easier just to use the same material with the proper adhesive.
It's an interesting reaction. The glue just turns in to rubbery snot.