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I'm putting a floor in my aluminum boat . It's aluminum diamond plate and I am looking for thr best primer to use. Parker's is not self etching. Any ideas?
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Start by using a red scotchbrite pad to rough up the surface, and follow it with some sort of etching wash. I prefer NAPA Alumabrite, but i have seen 50/50 vinegar - water mixes. This will give an etched surface for the paint to stick to. Next prime with a zinc chromate primer. If you can't find it, I have used the rustoleum self etching primer for aluminum found at Home Depot and have been satisfied with my results.
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Proper prep is the most important. scuff!!, clean/degrease, clean/degrease, clean/degrease, then use a zinc chromate primer. I used duplicolor and rustolium selfetching primer and it won't stick good unless it has something to really bite into. I plan to spend the $$ next time and go zinc chromate. Cheapo in me went with the duplicolor/Rust self etching and I'm having pain chip off when hit with a hard blow or hard bump with the dock.
Just my $0.02 from my experience.
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