Rust + heat = no problem, but why?

Originally Posted by PartTimeScrapper

Its magic?

(nerd mode activated)
I'll never join the dark side!
(disengage nerd mode)

yeah when i learned the canned air trick it amazed me, you may have to freeze them a couple times for it to work, and still be careful because rusty bolts can still be broken but i know i have taken many exhaust bolts loose that should have broken from all the rust by doing this trick and its safer than a torch when your working on a car that a customer wants to drive home in when your done.