Epoxy primer to base time frame?

[Bret]

New to the site and looking to the pros for some suggestions. I am building a Kit plane and the skins are 2024 Aluminum, I painted the tail empennage and it turned out ok, but I am painting the wings now and don’t want to screw this part up (expensive paint supplies). I have prepped with maroon scotchbrite and Dawn, wax remover, and tack, epoxy primer and wet blocked with 400 the next day. My question is there a time limit of how long I have to apply base and clear after priming. And what is the max time between base coats (two colors) and clear, for max chemical bonding? I am using DuPont Chroma base paint and clear. Thanks any advice on this subject.

[JCCLARK]

As long as you sand your epoxy, time doesn't matter.
You will get better adhesion if you spray a sealer coat of epoxy
right before base.
Once your base is applied you have 24 hrs that it has to
be cleared over.

[Bret]

OK, 24 Hrs, thanks.

[Len]

New to the site and looking to the pros for some suggestions. I am building a Kit plane and the skins are 2024 Aluminum, I painted the tail empennage and it turned out ok, but I am painting the wings now and don’t want to screw this part up (expensive paint supplies). I have prepped with maroon scotchbrite and Dawn, wax remover, and tack, epoxy primer and wet blocked with 400 the next day. My question is there a time limit of how long I have to apply base and clear after priming. And what is the max time between base coats (two colors) and clear, for max chemical bonding? I am using DuPont Chroma base paint and clear. Thanks any advice on this subject.

The time your recoat window is open will depend on the type of epoxy primer and the temperature during the cure cycle. Read the technical info for the primer you are using, it's probably available online.