I detailed my 04 WDP about a month ago and have a question. I washed,clayed,Mezerna'd and 4 Star UPP'd. Today I applied a coat of P21S. Can I re-apply the 4 Star UPP? or should I keep applying the P21S? Thanks for any advice.

 

I doubt the UPP is going to bond to the wax. Dunno how long P21s lasts.

 

Best bet IMO is to keep up with the p21 for now and when you next do a serious service (clay or polish), go for the multi-layer UPP.

I don't know how to remove just the wax and not the sealant, but time could do it for you. You probably want a solid base for the second layer, though, so why risk it?

$10 in clay or a quick once over with a good paint cleaner (Klasse AIO, 4*, etc.) and you have a clean slate!

 

Thanks for the reply. I really miss the ultra-slickness of 4 Star,but the P21S gives as good a wet looking surface as 4 Star. I was really surprised at how little of the P21S I used for my car...it really went a long way.

 

Long live FSUPP. (I still have a 1/2 Gal of the non polycharged, woot!)