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Painting plastic panels

1176 Views 1 Reply 2 Participants Last post by  dan-the-kid
I know you guys recommend Duplicolor bumper coater for painting plastic panels but I have several prep questions.

What grit of sand paper do you use the prep them. Is 400 too fine?

Do you use a Adhesion promoter or any sort of primer?
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I thought every one was one the SEM bumper paint wagon?

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