I have a white SUV coming up... hasn't been clayed or waxed for probably a year or two and I think it is parked outside 24x7
The key to your end results is always going to be the
surface prep steps just like any color and especially anything with a
clear coat because you're not working on a "color" you're working on clear paint.
In short, any wax or paint sealant that makes clear coated black paint look great is going to make clear coated
any color look great.
If a wax or paint sealant doesn't make a clear coated black finish look great it isn't going to make any color look great it's just that you're eyes might not be able to see the differences.
I'd be open to suggestions from forum members as to what to use for the LSP?