Composite flooring

I'm looking for composite sheeting to use as flooring for a 20' john boat.
I've seen composite floors before - not the glass backing stuff - but I can't find a source.
I'm also looking for 3" thick sheets of floatation foam. I don't want to foam the bottom because it's my duck boat and occassional repairs are needed.
I want the insulation of a removable foam that doesn't hold water or rot.
If anyone knows where I can get this stuff, or if you have any good suggestions, I'd sure appreciate and email.


Thanks


Bob

 

have you tried ethafoam which is made by DOW

 

One source that you may want to check out is Defender Industries. They have a lot of things that other suppliers don't carry, and I have seen closed cell foam on their web site that should work for your application.