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<p>[QUOTE="zekeguzz, post: 587042, member: 15455"]Excellent, excellant article and post. I posted what I do for long term storage previously in another part of this forum. I use the " Food Saver " polypropylene vacuum system. Cut the sheets to any size coin plus enough left for the machine to suck out/extract all gases and heat seal the edges. Vacuuming and heat sealing take place at the same time therefore most if not all of the gases from the polypropylene are extracted too. POLYPROPYLENE products are used in clean rooms of semiconductor manufacturers and gases are checked for in parts per million.</p><p>The one drawback to what I do is that only one side of the coin/s is clearly veiwed. The othe side is mottled by the diamond pattern of the pollyP. THIS IS ON THE OUTSIDE NOT TOUCHING THE COIN therefore causing no imbedding of the pattern into the coin. After sealing a soft material can be used to prevent any physical damage. Just my method. No flips ,no paper ,no nottin'.Thanks for reading.[/QUOTE]</p><p><br /></p>
[QUOTE="zekeguzz, post: 587042, member: 15455"]Excellent, excellant article and post. I posted what I do for long term storage previously in another part of this forum. I use the " Food Saver " polypropylene vacuum system. Cut the sheets to any size coin plus enough left for the machine to suck out/extract all gases and heat seal the edges. Vacuuming and heat sealing take place at the same time therefore most if not all of the gases from the polypropylene are extracted too. POLYPROPYLENE products are used in clean rooms of semiconductor manufacturers and gases are checked for in parts per million. The one drawback to what I do is that only one side of the coin/s is clearly veiwed. The othe side is mottled by the diamond pattern of the pollyP. THIS IS ON THE OUTSIDE NOT TOUCHING THE COIN therefore causing no imbedding of the pattern into the coin. After sealing a soft material can be used to prevent any physical damage. Just my method. No flips ,no paper ,no nottin'.Thanks for reading.[/QUOTE]
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