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<p>[QUOTE=&quot;desertgem, post: 4959080, member: 15199&quot;]from 2012:&nbsp; Questions:</p><p><br /></p><p><a href="https://www.cointalk.com/members/desertgem.15199/" class="internalLink ProxyLink" data-proxy-href="https://www.cointalk.com/members/desertgem.15199/"><img src="https://www.cointalk.com/data/avatars/m/15/15199.jpg?1572616203" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></a></p><p><a href="https://www.cointalk.com/moods/mood-chooser?redirect=%2Fthreads%2Fsome-more-dumb-questions.198323%2F" class="internalLink ProxyLink" data-proxy-href="https://www.cointalk.com/moods/mood-chooser?redirect=%2Fthreads%2Fsome-more-dumb-questions.198323%2F"> <img src="https://www.cointalk.com/styles/default/xenmoods/Nomood.png" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </a></p><p><font size="4"><b> <a href="https://www.cointalk.com/members/desertgem.15199/" class="internalLink ProxyLink" data-proxy-href="https://www.cointalk.com/members/desertgem.15199/">desertgem</a> </b></font></p><p>1. Will latex gloves hurt a coin when you handle a coin with them on?</p><p>2. Can you handle a coin with your bare fingers if you wash them really good with soap before hand?</p><p>3. Will it hurt to store coins in ziplock bags?</p><p>4. Will using a waterpik (high pressure water cleaner), damage a coin? </p><p>5. What&#039;s the best way to remove dirt from the devices of a coin?</p><p><br /></p><p><br /></p><p>1. OK to hold the coin, however latex is damaged by several substances such as alcohols, acetone, and dip type of chemicals. Many CSI protocols say to use 2 layers of latex gloves, or an outer layer of latex glove and inner of cotton glove, as skin secretions can contaminate through. Latex gloves were designed to prevent infectious material to entering the person. Nitrile gloves are mostly safe for alcohols, but not for acetone, etc. unless they are the thick ones. I do not collect MS-70 MODERN PROOFS, etc, so single latex satisfies me.</p><p><br /></p><p>2. If you are careful yes. Most damage from such is dropping the coin, but that can happen as easily with gloves. DO NOT wash your hands before though. Contrary to common thoughts, washing ( unless you know surgical scrub procedures) will loosen pores and allow skin secretions to be released in greater quantity. In my Microbiology class I had students touch petri plates of nutrient agar with normal fingers and after washing 1,2,and 3 times. The first and second washings had more contamination than the others. </p><p><br /></p><p>3. No, explained by others above.</p><p><br /></p><p>4. N<span style="color: #b30000">ot the home dental use one. I have an old thread someplace here, where I tried this *.</span> A waterpik can not generate enough pressure, even when a smaller diameter nozzle is used and a variac to boost the voltage/ pressure by 50%. Maybe a professional dentist water tool could, but I didn&#039;t have one to test. Also, you should do it nude or wearing a raincoat as it sure splatters all over <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p><span style="color: #b30000">* Couldn&#039;t quickly find it.</span></p><p>5. Since this is a scratch harness comparison, few things would be safe to use on copper coins, Although it might seem a no brainer to think that copper can&#039;t be scratched by a brush bristle, toothpick, bamboo sliver, immature rose thorn, etc., they can. An experienced DR. can use softened bamboo slivers ( since they are basically hollow tubes) dipped in a solution like acetone to ease the grime out as the acetone flows out like fountain pen ink. However, it is done with a stereo microscope and about 1000+ practice coins, and still they can get scratches. It should not be attempted on a nice coin without such experience. Unfortunately, this is most often what happens.</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

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