Thank you for the replies.
: You were right in your assumptions. This material is used in very high temp situations, including space shuttle insulation and it is ungodly expensive. However, since the space shuttle program has been mothballed, it will be appearing on the surplus market. (pennies on the dollar, perhaps?)
While even surplus I doubt it will be cheap, it would be cheaper than the Spaceloft stuff by Aspen Aerogel and I was hopeing it had close to the same properties.
Spaceloft has been discussed on the boards a couple of times but, in case it was missed, here is the link: http://www.aerogel.com/products/pdf/Spaceloft_DS.pdf
Good eye! I missed that very important feature of the board. Here is one from the product line, which might that downfall. It also lists the "blockers released at elevated temperatures".http://www.carbosanluis.com.ar/Panel...20Flexible.pdf
There are many informative posts on the insulating of Airstreams and I am not trying to reinvent the wheel. I have that typical American prejudice, if it was really, really,
expensive it must have been really, really,
good and like all prejudice it is usually flawed.