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<p>[QUOTE=&quot;John Burgess, post: 7346408, member: 105098&quot;]My opinion, if it&#039;s fine to wipe a coin that&#039;s circulated, I mean it can&#039;t be any worse than peoples hands and pockets, right? I&#039;m sure it does something, but it&#039;s a lot less than the friction of circulation.</p><p>That said though, any friction is going to technically cause some sort of abrasion to the surface, so wiping is definitely harmful because friction is harmful, just as flowing water (as harmless as it appears at face value)&nbsp; causes erosion/abrasions over time, or a acid or alkali is corrosive or caustic respectively.</p><p><br /></p><p>even an eye glass wipe is abrasive, because friction is abrasive. </p><p><br /></p><p>And masterswimmer&#039;s post about carpet, even the 100% cotton carpet will give you a rug burn, that&#039;s friction at work. recycled plastics, finely stranded into a fiber, yeah, also abrasive, so is cellulose which is used in a lot of things including paper, is a plant fiber at it&#039;s base, but it&#039;s a polymer. cotton fiber is 90% cellulose so even a 100% cotton carpet, is still 90% polymer. hahaha!</p><p><br /></p><p>Friction is bad for everything, friction = wear.</p><p>[ATTACH=full]1281572[/ATTACH][/QUOTE]</p><p><br /></p>

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