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Old 05-24-2021, 01:13 PM
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billyO billyO is offline
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Join Date: Nov 2014
Location: Portland, OR
Posts: 35
Not sure about the overcoating, but the copper patina from etching in acid with copper is very thin and not durable. I wonder if GunKote would work for this? https://shop.kgcoatings.com/kg/
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