Originally Posted by arnav
I am going to have to try that for the Mosa. I thought you would have to approach something like that by layering glass over the mold. The approach with plastic sounds like fun and (and clean!).
Is there a specific reason why you mentioned "plaster of paris" or will any plaster do?
I would assume any plaster would do, except for maybe joint compound (if that is considered "plaster"). Whatever you might use, you want a non-shrinking formula and to coat the cowl (initial mold) with a release agent (maybe a light spray of silicone?). If you search the Pico TM thread for "cowl mold" or "buck" you may find some helpful hints.