My car is fully wrapped in Xpel U+ and CQuartz Ti02. How does one go about reapplying ceramic on Xpel a few years down the road?
I've read that any ceramic/sealant needs to be stripped first before reapplying, and that it usually requires a light polishing, but this is in the context of bare paint not PPF. Assuming it's the same for Xpel, is it safe to use a buffer and do a light polish? It seems unsafe since it could marr the film.
E.g. is stripping really necessary, and is there a way to get great results other than polishing?