probably the 2 major differences....closed cel last much much longer as well _________________
Date: 6-22-08 05:47 From: ought2 in Maine Subject: Re: Functionally, what's difference btw open & closed cell..
Closed cell foam doesn't have the capillary action that open cell does. Open cell acts more like a sponge. In dry environments it is fine, but if there's a chance of significant moisture, use the more expensive closed cell.