think this could be used in place of foam? http://www.nytimes.com/2004/01/20/science/space/20GEL.html?ex=1075179600&en=47b769c5dbc8bd9c&ei=5062&partner=GOOGLE
I think you had better look at this website. Carbon Foam is the future. Thanks. http://www.industrialheating.com/CDA/ArticleInformation/features/BNP__Features__Item/0,2832,87444,00.html
5# per cubic foot minimum. It’s too heavy.
CFOAM is currently under development in lower densities in Touchstone’s laboratories. Unfortunately, it is inherently open-celled. In the future, it could be a viable alternative. Until new densities are developed and mechanical properties tested, it will have to be classified as an emerging core material for this application. http://www.trl.com 