hey all.. just had a thought to put a sorta cooler/walmer in my car, that doesn't use power..
what materials are there out there, that will keep what ever i put in it's temp. the same/close enough?
best is to use a vacuum, like a thermos
You can get a sort of liqud expanding foam. Come in a liquid, put catalyst in, pour into space and it puffs up. Cant remember what its called though, think I got it from bunnings. Used some in Yr 11 at school to make an esky, worked well.
ist called expander foam
yeh foams the go!