ZR can be topcoated with just about anything, the only potential problem is with automotive paints that use a considerable amount of acetone as their VOC, which can cause lifting of the ZR due to its aggressive nature.
This can be overcome by simply shooting a light tack coat to "seal" the ZR surface, then come back and shoot your flood coat.
Alternatively, if you like the finish of the ZR, leave it uncovered. OR, if you want some UV protection and perhaps a little more gloss, shoot a couple coats of our Crystal Coat and you've just finished the race!
HTH
WK Irish
