Sandblasting inside trunk and hood?

RedFish said
No way. To use the dry ice media to blast underside of a hood or deck lid would work but even then there are soo many hidden areas that cant be cleaned. Any other media will rain from these areas forever and ever.
My uncle (old timer body man) says ther is no way to seperate the understructure from the skin and put it back again without warping the skin. I think I've figured out a way to prove him wrong. I wont go into details before I try it.

Redfish... wat in the world are you going on about? Dry ice? To be honest i'm quite lost... and who said anything about seperating anything?

I'm gonna guess you mean that if i sandblast the hood sand will get in the nooks and crannies, and then never will i get it all out? Which doesn't matter much as it will be out of site, out of mind, and sealed in with some sealer and paint.

2moro i sandblast the inside of them things. (they're off the car, no worries). I'll keep the nozzle a ways from the metal where its not 2 layered. Which is only parts of the hood... i hope nothing warps.