We have a powder-coated chassis since 2004, and it sure holds-up and looks great. Yes if any cracks show-up from tire shake, we had to grind the PC off where we needed to weld. Also if you are planning to media blast the PC off, in my experience that doesn't work, when we front halfed the chassis, so we just needed to strip the back-half. It just makes the coating mushy, so we had to use strong paint stripper. My powder-coater tried to just powder-coat over the old stuff that didn't work either. But we sure like the way our all orange chassis looks and doesn't chip easy. Our 1'st powder-coated chassis was in very good shape after 6 years, and the only reason we re-powder coated was we put new tubing from the motor forward to go from 200" WB to 225" WB and set-it up to run our early Hemi or SBC. One reason we went with orange PC is that is our team colors AND we can see any cracks easier, black chassis are hard to see any cracks. And of course allot of teams just leave the chassis bare, so they can rust ?
Jon