Painting rubber/foam parts

The stock rear spoiler on my car was the same type as the USDM 84-85 turbos had, the rubber/foam with metal frame, but mine was kind of metallic charcoal not black. That spoiler is completely beat on the outside and I got a black spoiler to replace it, which is quite nice on the outside. However, I noticed its paint coat is chipped a little bit on one edge. Can these rubber/foam parts be painted? If yes, then with what? Something like plastidip?