painting over chrome? How would you

[dj's 2000 xj]

I just got a chrome roof rack, since I have nothing chrome I want to paint it black. How would you do it? I am open to herculiner, line-x or whatever, also I want to cover my warn grill guard with the same thing so they match and look pretty! Thanks to ya'll in advance.
p.s. wasnt sure what category this fell under.

[GSequoia]

Well the slickness will present a problem, the paint will want to slide off it.

While I haven't painted over chrome before I would suggest getting a nice couse wire wheel and going at it with a vengance to reall rough it up. If it's a crappy chrome job it may even flake off adding bonus.

Not gonna be a twenty minutes with a spray bomb kind of job ;)

[Chero-King]

I painted my chrome lights on my lightbar and all I did was sand it down really well, two light coats of primer and two light coats of crappy wal-mart flat black and it sill turned out pretty good and after a full day of drying it doesnt come off very easily.

[Sarge]

Couple days late but here's what I've done on bikes (I hate chrome). Mix up a 50/50 solution of battery acid and water. Brush it on the chrome and let it sit for about 45 minutes. Then rinse with a lot of water. Dry good and paint. May have to sit longer on better chrome jobs.

Sarge