If you see my article on 22ple HPC, you will notice that as the coating flashes, it leaves a hazy finish which some people can relate to how a wax looks as it dries. 22ple HPC is the only coating in the line up that leaves this hazy appearance that indicates it is time for the coating to be wiped away. Flashing in general just refers to the process of carrier fluids evaporating and leaving the coating behind. Hope that helps.