tgoode
Your correct that anything other then a neutral PH will attack zinc/potmetal. Heck, I have watched my tap water turn potmetal black! By nature, zinc is a sacrificial metal. IE galvanized pipes and zinc anodes on outboard motors.
Personally, I dont use any cleaners or anything on my potmetal parts. Just sandblast clean and start the plating process.
48 Buick
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