Planted Tank Guru
Join Date: Jun 2004
Location: Baton Rouge, LA
I've never come across foam-core PVC before, except in sheets under the brand name Sintra. Fun stuff to work with - lightweight, fairly strong, drills like wood, can be glued together with solvents, and shaped into curves with minimal heat.
I don't see any reason why it wouldn't work, though. As long as it is not heated, pressurized, or physically abused.