you could powder coat the whole rimm but the seal is thew promblen.....now depends on the power coater you use...there some 3m heat tape you could try to use and save the seal( take to your powder coater 1st) its really no worth taken your rimms apart and doing them,,,,but the time you shipp them and we take them apart and repalace the parts the break or shrip out ,,,you spend more money just sell the rimms .....and get new ones!!! inless there daytons