Re: priming aluminum
powder coating is tough-some guys love it and most hate it...me,i hate it,i've never seen it hold up yet-first nick in the coating and it's all coming off...
aluminum: for anything to properly adhere to aluminum,the surface must be chemically etch primed first-skip this step,and you're gonna regret it...
for refinishing an outboard bracket,i use the chemical etch prime first,followed by interprotect 2000e epoxy barrier coat,then,i use duratec surfacer,followed by awlgrip...holds up fantastic,the surface will never pop off...
awlgrip is not designed to be underwater-bear this in mind,if your boat's on a trailer,it's ok...otherwise,waterline up is awlgrip and below is trilux antifouling bottom paint...
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