Building 1 time use mold. input?

[jw]

Dave,
You might check out some baltec core material, it is scored for making radius'sssss. I believe you can get it in foam or balsa, and in different thickness'sssss. It may be a bit more work, but the coring material my help insulate the live well, and you can still gelcoat it or paint it.
A buddy of mine enclosed the windows on his 31 Bertram, he used this stuff, if you know a 31 bertram you know the weird curves on the front outboard windows.

Hope this helps,
JW