We've been told that, in order to paint this cot bed we have we need to rub down with wire wool, use primer then paint with gloss. The old finish kind of looks varnishy but it's matt and quite thin. Some kind of PU maybe, I dunno.
So the first question - rubbing down with wire wool doesn't appear to be doing anything - maybe the finish is a bit more matt up against the light, not sure. So it might've roughed it up I suppose.
Secondly - after painting a couple of test pieces with primer it seems heavy brush marks are unavoidable. The coverage is not good and the surface is not at all smooth. Will the gloss cover this up or does it need to be sanded smooth, reapplied and sanded again?