Primering a transformer?

hi guys. Im completely new to this stuff and i can only get my hands on Games workshop paints and not testors since i live in Australia and someone told me that since i cant get testors, i should be primering my figures before painting with Games Workshop by i have no idea wat that is. can someone expain?
THanks alot any info would be great.
Also i heard somone mention here on this forum about something u can put a transformer in which will dissolve the original paint, does any\one noe anything about this?
EDIT: sry for the double post, everything went laggy or sumfin and yeh.. accident lol
THanks alot any info would be great.
Also i heard somone mention here on this forum about something u can put a transformer in which will dissolve the original paint, does any\one noe anything about this?
EDIT: sry for the double post, everything went laggy or sumfin and yeh.. accident lol