You CAN paint over anything with any type of paint.
You might wanna prep/prime it correctly though, if you want it to stay on there.
choo so cerazy paint store guy. not prime the completely slick masonite? Or sand it to increase adhesion? Cerazy.
NCpaint here's my deal. Years ago I painted an apartment with latex enamel. Asked the paint store employee if I needed to prime? NOpe they said.
I paint it all out and the paint did not sufficiently adhere to the gloss oil substrate. Maybe it would have adhered better given more time but the property management company wasn't having it.
I spent three days with a palm sander and putty knife stripping every inch of trim and then primed it and then painted it again. For free of course.
Wanna know what the paint store employee had to say? "Gee that's weird. It should be adhering. How much primer did you say you needed?"
In my experience, slick surfaces need to be abraded for coatings to adhere.
I have painted a bunch of masonite, MDO etc. and always sanded with 220 and used an oil based primer. Usually Parker 1700. I'm impressed with the Zinzer 123 these days and it's more redily available.Old thread yes........But I need to prime five smooth solid core masonite doors.
Was going to use cover stain oil. It was not mentioned.