Pictures wouldn't hurt, but if it's the area I'm thinking, it a plastic that fades really badly to a grey. No paint was used in that area unless you talking an SVT model that are glossy (not a wagon).
Hatch Nation #13 : Rally Revolution #13 : ROTM Jan '13
It's Bryan, not Brian
RSVT-170 Build in Progress
Derusting Rusty Build in Progress