I dont have a pc but any da should work right . I do autobody work as well and have a few air DA's and was wondering if theres any reason why i cant use them like a pc . If so i just gotta get a backing plate since my da's uses adhesive backed sandpaper .
The difference between a PC and a DA is that a PC would be more aggresive compared to a DA, so you might not get the same affect using a DA. You can use the DA to apply wax.
that would be great cuz i just want to use it for wax and sealent . for everything else i use the rotary