hello. i want to make a new rack. my last one was out of melamine ans is very heavy. i want to use pvc but it is very expensive for a 48" x 96" sheet. i was looking into it and would i be able to use Komatex? its a closed cell, free foam, rigid PVC sheet. i dont know how this material is or if it will be strong enough to build my rack out of. if anyone has any experience with komatex or anything similar ltd be a great help.