Just a dumb question, however have you looked at mineral wool? (that fibrous brown stuff that falls apart after 40 years) That is what newer gas tanks are isolated by. At least in a few of the vehicles that I have restored. Even my fathers mid-90 mini-van used it.

Last edited by cletis; 07/23/2009 5:17 AM. Reason: deleted ebay link
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me