The epoxy is adequate for preventing rust under the windshield gasket so you can just leave it as is until you’re ready to paint. The preference would be to apply a top coat to add UV protection to the epoxy and if your masking wasn’t perfect when you do get around to painting, there would be color where you missed. It’s really important when you do paint, to sand the area next to the rubber really well to get proper adhesion to the epoxy or the paint will be prone to chipping.
You can use the paint of your choice on top of the epoxy, base coat/clear coat or single stage.
Last edited by Phak1; 02/22/2025 2:23 PM. Reason: Additional info