This begs the question :Originally posted by L1f3
Yeah thermos keeps things hot, or cold. But that is dependant on the fact that what you are putting in is either hot or cold. Paint isn't like a hot liquid or cold drink though is it so don't think that would work too well. I know what you mean though. But for that to work your paint would have to be hot when you put it in, so that the thermos retains the heat throughout the day as it will naturally cool down.