This is pretty normal procedure under production,if panel is meant to be covered up by fabric or plastic-panel they won't spend paint all the way.
and no they weren't dipped as you say they were painted by simple paint-robots.
-Now is a good time for you to dab on some paint both for rust prevention And a fair bit of sound-proofing
I bought some rolls of cork-material acually to make seals etc You get it in 1-1,5-2-3 and 5mm thichness mine were 200cm x 50cm they are impreg-
nated as they need to be if used as seals..so won't hold water at all.
Easy to measure up and glue on with contact-glue and they really work.They can be roll-or brush or spray-painted to match and you won't have
condencing-issues afterwards as they insulates temp too.
As mine is a F4 it had a boomy sound in the cabin now much much better -Reid.