In Spray painting is black a good primer for a metallic color over it?

I am painting a plastic helmet a gold color with black accents. The Fusion products made for painting on plastic and bonding dont carry any metallic colors. So I am going to paint/prime the whole thing with a Fusion (plastic-friendly) black and then go over it with the metallic that isnt so friendly to plastics.





Will the color be overly muted because of the black?


Does that only become a factor if I dont do many coats of the gold?





And last question, will the metallic color bond to the spray paint layer regardless of the plastic underneath?





Thanks.In Spray painting is black a good primer for a metallic color over it?
Excellent.


Black it a very nice base for metallic paints. Whites and grey will dull your gold. A red base coat would be perfect.





The whole idea behind primer is so the paint and the surface are separated. If you apply the primer correctly there will be no contact between the two.





(most) Metallic paint isn't very scratch resistant (enough) so you nead a clear coat that will provide that. It will also enhance the shine of your metallic paint.In Spray painting is black a good primer for a metallic color over it?
I would say that black is not a good color for a substrate. It will mute the topcoat. alot of it depends on the desired goal. spray your black basecoat then switch to a grey primer over that. Lay down your base color (gold or silver metallic) then your color over that. Finish off with a clear coat.





Best to talk to someone who knows best thought.. try finding a PPG or Sherwin Williams Automotive finishes place around you and talk to them they are very knowlegeable.
Use a battleship grey for the primer. It is a hue that covers everything and anything can cover it.


It is a perfect colour for a primer.