[kach22i]

http://www.martinloganowners.com/~tdacquis/forum/showthread.php?t=1646

Kruppy said:

Aerogel has been around for quite a while. I've been doing a bit of research on it for my work. It was used on the NASA Stardust program.

http://stardust.jpl.nasa.gov/tech/aerogel.html

You'll find that beyond its aerospace applications it's used for heat shielding for engine compartments, shoe inserts for insulating the foot from the sole of the shoe (artic conditions), and also insulation in jackets.

The stuff aint cheap.......

If anyone is interested this is a bit of history on the Samuel Kistler the inventor of Aerogel in the 30's

http://eetd.lbl.gov/ECS/aerogels/kistler/index.htm