Special material

1. Feb 22, 2009

nour naser

hii... i need to know about materials that we can use in airships using helium ... i mean material which has these properties : 1) less penetration to helium 2) elastic 3) implement high pressure 4) resistence for heat 5) insulate the helium from the outer temperature ..... thank u soo much for help .

2. Feb 22, 2009

Astronuc

Staff Emeritus