400-600 grit is still very coarse bro...
:wtf: "very coarse"??
Hmmm, you're actually saying that paint won't cover 400-600grit?? :scratch:
I've sprayed basecoat over a total of roughly 1-zillion jobs in 10yrs using 400-600grits, and you can't see the scratches when dry
The only jobs worth jumping above 600 are the blends on golds and silvers
I will say, some brands are/can be a little more coarse than other brands of the same grit.........so, when I'm using brand-A that is more coarse than brand-B of the same grit, I'll jump up to 500, maybe 600, when I'd be using 400 with the smoother brand for the same job.
Bottom line though....400-600 is the most perfect range of grit to paint over while still not seeing the scracthes when dry.
Sure, it's possible to paint over 600-1 million grit, but why would you?? Adhesion is more compromised the smoother you go. Have you ever seen clearcoat actually SHED from a car in sheets....to only notice shiny or barely-sanded paint underneath?
Black spray paint will certainly cover 400-600grit.
The idea is to spray over the most coarse grit that can still be covered without any visual problems once the paint is dry (400-600) ------> so you get the *coverage* while maintaining optimal *adhesion*