[Cbonilla]

Not sure what an adhesion promoter is. I sanded to remove all the damaged clear coat and scuff up the surface, cleaned thoroughly, applied self-etching primer as the sanding removed a good bit of the clear coat which got me down to bare metal in places, color, and clear coat per duplicolor's instruction.

What's an adhesion promoter?

Edit: Googled and found adhesion promotors. Fancy term for primer, and may just be for painting plastics. Duplicolor describes theirs as "ideal for automotive plastics". Similar language for Rustoleum.