So if carnauba wax melts off, will Glare melt off?

Glare polish will not melt off at all. Glare can withstand temperatures up to 650 Degrees F and all the way down to -250 Degrees F. It will not wear down due to minor abrasion. Try and use it on your exhaust pipes, it won’t come off due to heat. This is one of the reasons that it is used on airplanes.