I like Aquabuff 2000 for polishing and de-chalking gelcoat. Moderate to high speed polisher/buffer and lots of water. I think it's better than 3M Finesse It.
https://www.amazon.com/POLISHING-Compound-Fiberglass-Professional-Professionals/dp/B00N26AMDE Dennis C. Touche' 35-1 #83 Mandeville, LA
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