I did paint over POR-15 primer, and it worked fine.
I think the concern is that POR-15 dries to a slick surface that most paint will have a hard time adhering to.....Don't know if a scuff with sandpaper will take care of this or not...
I've also been told that applying a topcoat over POR-15 while it is still tacky will allow the two paints to "meld" in a way that will enhance adhesion. Never tried that myself.
Unsolicited recommendation: Eastwood's Coroless (now "Rust Encapsulator") No topcoating issues there ! Dickson
I think the concern is that POR-15 dries to a slick surface that most paint will have a hard time adhering to.....Don't know if a scuff with sandpaper will take care of this or not...
I've also been told that applying a topcoat over POR-15 while it is still tacky will allow the two paints to "meld" in a way that will enhance adhesion. Never tried that myself.
Unsolicited recommendation: Eastwood's Coroless (now "Rust Encapsulator") No topcoating issues there ! Dickson