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Do you guys strongly suggest a roll-on primer before the paint?
If its bare metal you are rolling the paint on, what do you sand it to for best adhension? what about if your applying the new paint on old paint, then what do you sand to?
Thanks



Think I used 360? on all surfaces and just spot primed where I sanded to bare metal, rustoleum rattle can primer in some places.
I'm lazy so all my large surfaces I could get to I machined sanded.