Filon RV fiberglass siding
I was up in Indiana / Michigan where they build lots of RV's, checking out the surplus stores in Goshen and White Pigeon. They had rolls of Filon - a thin, maybe 1mm thick sheet of fiberglass on large rolls, maybe 8 to 10 feet wide. Really nice gel coat finish on one side.
This is what is used for laminating to create the exteriors of RV's.
Priced as low as $1 sq foot. We were thinking to use it for the interior of our RV conversion, but could not imagine how we would handle and apply big sheets to existing walls. Probably would be ideal for laminating as Terra has done here.
It's also available on Ebay, with free shipping. Not sure how thay would ship it though.....
Though this might help someone
Bob