...but I'm looking at it for a custom I'm working on right now. Basically, I need to make all car parts of a Classics Sunstreaker black, so I was thinking my options were using either dye or paint. I've heard that Krylon Fusion is the best paint to use on plastics, since it "bonds" to the plastic, but I've never used it so I thought I'd stop by here for some advice.

I'll be stripping the existing paint from the disassembled figure before I start, and I know it's a good idea to wash the parts I'll be painting to remove any residual mold release or dirt. But I'm wondering if I need to use a primer or light sanding to to help Fusion paint bond to the plastic, or if those steps are unnessicary.

Lastly, do I need to use any sort of seal on the Fusion paint? I've been using some Games Workshop and Tamiya acrylics with brushes for detail work on the robot parts, and I know I need to use a sealer with those, but do I need to do the same with Fusion?

Thanks in advance!

EDIT: Ugh... this probably belongs in Slamdance's Bulletin Board. Mods...?

Krylon Fusion would be the best paint to use for the job, yes. As with all paint though, you'd need to leave any rubbing/sliding parts unpainted. I'm not sure what you're colorscheme is, but if it would be interrupted by little bits of yellow in the various nooks and crannies, you may want to look at dying. At least, at first. Maybe dye it, see if it absorbs enough black to make you happy--personally, I doubt it, since I tried dying him before--and if not then paint it. That way the bright yellow would at least be dulled a little in the joints.

I suppose where it's possible joints that rub against one another can be sanded down a bit. I guess joints can be tightened in other ways

Like sanding the parts that are visible and then just tighting other parts that aren't visible to keep the joints stable.

Just a theory, Not sure how well that helps.