I'e seen a lot of painted wood, like this post: http://www.hometalk.com/156604/how-i-painted... but I'm not sure about vinyl. I'll be curious to see what others say.

Easily available, Zinzer 1 2 3 primer sticks well to plastic-like products after cleaning.

Then apply a high quality acrylic trim paint.

Best, Charles

Just make sure the vinyl film is still good and tightly bonded to the surface. If you're painting them a color, you can tint the Zinser 1-2-3 to minimize the number of coats you will need to cover. You can use either a latex or oil-based enamel...I assume that you aren't going back with white...but it you were, just know that oil-based enamels will yellow now fairly quickly. We have a client who insists on a high gloss while enamel for her cabinets....they yellow after a couple of years and she has HandyANDY out to repaint the again!