are more general-purpose ways of finishing the prints with a more natural texture than the printer will produce on its own. They’re not all additive, though; the final (and perhaps, most toxic) method here to achieve a smooth surface on a print uses solvent to remove some of the materi...
:-(. Since the paint dried to a rough finish, any new paint over it will take on the same texture. If you want smooth, take a piece of 220 grit sandpaper and run it along each pipe to smooth out any rough areas. Clean the surface well and then re-spray following my spray ...