Once your wheels are blasted and powder coated, they should be processed through an oven to fully cure. Your service provider should check the cure of your powder coat by using a methyl ethyl ketone (MEK) and Q-Tip rub test. If the coating fails this rub test, it most likely did not have enough time in the oven to allow for curing and should be re-serviced. If your wheels are not completely cured, they are prone to premature corrosion.