I'm having trouble getting paint to stick on this Rubik's cube I'm painting. I'm making props for N from Pokemon Black/White (reference pic here: http://bulbapedia.bulbagarden.net/wi...oncept_Art.jpg
I used Krylon Premium Metallic 18kt Gold spray (which DOES claim to work on plastic) to paint it, but the paint is flaking more readily than I'd like. So I'm thinking of starting over with a new Rubik's cube because the coat on the current one is at a point where not even sanding would save it. But I'm wondering about the best approach.
I know that you're supposed to sand plastic before you paint it to help the paint apply. Would that be enough? Or should I also get primer? I also figured that I should use something like Krylon's Crystal Clear Acrylic Coating to seal it because this prop will be in close contact with my clothes and I don't want gold paint flaking off on my clothes. A friend of mine also recommended I use Gesso as primer.
After looking up some tutorials and other forum posts, I'm starting to feel overwhelmed. Do I need both primer AND a finish? The finish sounds more important since I'm worried about stuff chipping off... but I'm not sure.
I'm also painting some plastic bangles yellow, which means I'll be wearing them, and I wasn't sure if the acrylic finish would be enough to prevent any paint from flaking off on my skin.
And finally, another prop I'm painting is made of rubber. I'm a bit worried that even plastic spray paint won't apply properly. Is there a way to make sure the paint coats this properly?