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<p>[QUOTE="HandsomeToad, post: 414558, member: 12965"]I use electrolysis with a baking soda mixture. It will pull the corrosion out and then you have to coat it with something to protect it from coming back. I won't say what I use but figure out something that will coat the coin and keep moisture out.</p><p> </p><p>Ribbit <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p> </p><p>Ps: I'm not saying what I use just in case it may end up causing damage down the road. It seems to work but only time will tell. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie2" alt=";)" unselectable="on" unselectable="on" /></p><p> </p><p>Pps: With copper, use copper as the electrode (a common penny works) and with silver, you can use a stainless steel utensil (fork, spoon, etc...).</p><p> </p><p>Ppps: With extremely bad corrosion, I use a vinegar/salt water mixture in the beginning and once the bulk of the corrosion is gone, I finish it off with a baking soda mixture to neutralize the acidity from the vinegar and to get the rest of the corrosion. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie2" alt=";)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="HandsomeToad, post: 414558, member: 12965"]I use electrolysis with a baking soda mixture. It will pull the corrosion out and then you have to coat it with something to protect it from coming back. I won't say what I use but figure out something that will coat the coin and keep moisture out. Ribbit :) Ps: I'm not saying what I use just in case it may end up causing damage down the road. It seems to work but only time will tell. ;) Pps: With copper, use copper as the electrode (a common penny works) and with silver, you can use a stainless steel utensil (fork, spoon, etc...). Ppps: With extremely bad corrosion, I use a vinegar/salt water mixture in the beginning and once the bulk of the corrosion is gone, I finish it off with a baking soda mixture to neutralize the acidity from the vinegar and to get the rest of the corrosion. ;)[/QUOTE]
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