I'd like to get the back part of my mould painted, but I've no idea how to get a smooth finish on that side of it (the peel ply side) Do I sand it down? Brush another layer of resin?

Hi!
I think good way to do it is just to skin/wrap back layer with carbon - as they do in CarbonMods. Put resin, wait until it gets tacky, put carbonfiber cloth, another thick amount of resin and use non perforated film or vaccum bag as they do in this moment http://www.youtube.com/watch?v=Xm2Ezo70vFI&feature=player_detailpage#t=405.

~~~Everytime I hear sound of demoulding part I have eargasm~~~