Hello.
You haven't wasted any money, feel assured.
First: You can do entire correction and polish your paint to a high gloss using your products. After your last polishing step, I would (please, read: I):
- If using a conventional wax or paint sealant, use it right away.
- If using PBL Coating:
a) Wash the car gently to avoid instilling swirls (you've already removed), with a shampoo like CG Citrus Wash (or other you prefer), even to remove compound dust or polish residue from prior steps.
b) Dry gently (to avoid swirls and scratches).
c) Polish the entire car with PBL Cleansing polish.
d) Apply PBL surface coating.
Someone would skip the 3 steps I've cited. No wash, no PBL Cleansing, just an IPA wipe down and coat. Nothing against it, it's just not my practice. Coating application is the most expensive service I offer, the client really get's what he paid for (and it's listed, Wash and Cleansing Polish before).
In my opinion, if you're going to apply a 3 years durable coating, you would give your best to do the most professional prep. possible.
Again, after coating, (need to wait some minimum time I can't say exactly), but I do wait 1 - 2 weeks (client returns for a free maintenance wash (1 per client), then apply some carnauba wax to give the final touch.
That's it, you can use all you have to prep. the paint before coating, and keep waxing with carnauba whenever you want to.
I don't know but also am curious about applying synthetic waxes over BL coating. Can I layer Meguiar's Ultimate Paste Wax over it? A paint sealant? Or just Carnauba Waxes. With or without cleaners?
I know it may not even be necessary (for the coats I've applied, shine and slickness to the maximum), but it's always refreshing the look and feel of a just waxed car... Maybe after 6 or more months after coating that refresh would be even more noticeable.
Kind Regards.