rushorwell
Promoted Users
In the area around the trunk opening, the channel below where the trunk lid mounted weather stripping contacts the body, what sanding is required after primer and after high-build primer?
Channel and Recess Prep
- Thread starter rushorwell
- Start date
theastronaut
Promoted Users
Depends on how nice you want it. If you're going for factory look just sand for adhesion with 400 if painting it a solid color, 600/800 if metallic.
No sanding needed after epoxy (if that's what you meant by primer) if you shoot high build within the epoxy's recoat window.
No sanding needed after epoxy (if that's what you meant by primer) if you shoot high build within the epoxy's recoat window.
rushorwell
Promoted Users
The entire car is currently in epoxy. I will sand the whole car then spray high build. So, just rough up the channel for high build then 400 for single stage color?
theastronaut
Promoted Users
If it's currently in epoxy then you need to sand with 180 grit before applying more primer if its been more than seven days since epoxy was sprayed. If it's inside the epoxy's seven day recoat window then sanding isn't required. The high build will need to be sanded for the sealer/paint to stick.
rushorwell
Promoted Users
What about the underside of the trunk and hood? I don't want to go to bare metal. Can I scotchbrite those surfaces and spray the hi-build direct?
RenewAP
Promoted Users
Unless you are going for perfection, there is really no need for any 2K primer on the underside in those areas. Just clean them, then sand well with red scotchbrite, then epoxy sealer, then paint.