Daybed Frame Why Won't Paint Adhere To This Metal Bed Frame I'm Repainting?

Why won't paint adhere to this metal bed frame I'm repainting? - daybed frame

We have a metal frame crystal is a frightening shadow of a dazzling whiteness. We are trying to paint, but we can not get to stay to paint or primer.

We metals in some sand, some sand, then they wash and rinse well before you actually apply primer and then paint.

The primer does not stick to metal at all and do not see why not, we have exactly what I say.