Painting what Ron? Balsaloc is an adhesion assist for film or tex, very much like watered down white PVA, if its tex on an open structure, a coat of thinned shrinking dope will help before paint, clear coat is useful to seal tex against the grubby finger syndrome, some good ideas for you on this link,
http://www.modelflying.co.uk/forums/pos ... p?th=55856