Has anyone used generic high density PVC foam for non structural fiberglass core? I am slowly removing everything from the cabin of my 357 for some bulkhead repairs and want to replace the wood with foam core. I know Divinycell H100 is PVC foam with 6 lb weight, I am thinking of using a simular weight construction PVC thats cheaper.

thanks for the input.

Use Plascore Polypropylene honeycomb core with a veil it is easier to work with, stiffer and cost the same or less.