[Stan]

Originally Posted by nimblemotors

we are getting a little off-topic, but I see there are 4 and 6lb densities available from a manufacturer in Indiana, is this going to be good? how long does it take to crumble? This is even when clad in glass?
I would not use it in a significant structural role. My hulls are epoxy coated plywood, the cabin structure is what I'm looking at building primarily,
and I need the insulation value as well.

Yeah, sorry about the topic drift...

Anyway, I don't have exact data, as it will depend on thickness, loading and the specific formulation. If the application is not in the hull and is not carrying primary loads, I don't see why you couldn't use any foam you like in that case.