I bought a copper antiquity which had been cleaned with muriatic acid. Could you please tell me what should I do and what to use to remove safely all traces of the acid so that it does not further damage the relic. Many thanks.
Also what doI do and use to remove safely such light brown/yellowish stains from the copper antiquity
Also what doI do and use to remove safely such light brown/yellowish stains from the copper antiquity