Check with the online folks at Foam Factory http://www.thefoamfactory.com/
Check out either open cell or closed cell I use the "Polyethylene Roll" closed cell.
Buy by the foot from a 50 inch wide roll.
Pretty much a hand cut edge. If you would like a sample I have some 1/2 inch
I use the 3M foam glue or less aggressive grab and hold than Super 77.
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