painting the plastic black

i painted my ltr450 all i did was use a bit of rubbing alcohol where i wanted to paint and had at it. i did the plastics, battery cover, and chaingaurd. its been holding up for over a year and a half already, i dont have any recent pictures of it but here are some old ones
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yea it also depends on the brand of paint and the type. pearls,candies,etc combined with different flakes makes the prices skyrocket. i nomaly use left over paint from cars we have done prior.