Okay I won't put the can in boiling water, but still this is some seriously funny stuff! I have exploded one can of white primer before, now It didn't explode everywhere thankfully, I had the top on, and I put the can in hot water one day and left it sitting for about a good ten mintues, then I picked up the can, dried it off, then went to shaking the hell out of it, then I hear Pooof! Yep that can exploded, and the bottom of it bulged out like a dome , and the spray head came off, it's a good thing I have worked in a company who make their own spray cans other wise I would not have known how to put the Head back on . Seriously though it was still usable , I had to shake it allot though .