POLL-Paint or undercoat?

Clean it super great to bejesus and back, then epoxy (or moisture catalyzed primer) then body color single stage paint.
Or if on a budget, super clean and roll rustoleum on it. I agree that prep and cleanliness is key. Scuffing, scraping, degreasing, scrubbing w/ soap n hot water etc.

For acoustic dampening products:

http://www.designengineering.com/catalog/boom-mat-acoustical-products



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