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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Colleagues,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have today found a severely deteriorated jar lid liner in our alcohol collection. The liner is made from polyethylene foam. It was sold to us in 1999 and installed in 2000. The material has failed completely, with crazing and cracking of the surface and tearing along the compression face. The foam has become weak and powdery in places. The jar was filled with 70% ethanol.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The manufacturers have suggested that the use of this liner for long-term storage of alcohol is responsible for the deterioration. If this is true, the implications for our collection – we have about 20,000 bottles that use these liners – are potentially serious. <o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Does anyone have experience with this problem? Are Teflon liners a better alternative? <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Paul Callomon<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Collections Manager in Malacology, Invertebrate Paleontology and General Invertebrates<o:p></o:p></span></p><p class=MsoNormal style='margin-top:4.0pt'><span style='font-size:12.0pt;font-family:"Times New Roman","serif";font-variant:small-caps'>The Academy of Natural Sciences of Drexel University<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>1900 Benjamin Franklin Parkway<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Philadelphia, PA 19103<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>callomon@ansp.org<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Tel. 215-405-5096<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>ansp.org<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black'>Follow us:</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'> </span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><a href="http://www.facebook.com/AcademyofNaturalSciences" title="http://www.facebook.com/AcademyofNaturalSciences"><span style='color:blue'>Facebook</span></a><span style='color:#1F497D'> | </span><a href="http://twitter.com/#!/AcadNatSci" title="http://twitter.com/#!/AcadNatSci"><span style='color:blue'>Twitter</span></a><span style='color:#1F497D'><o:p></o:p></span></span></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Join us as we celebrate the Academy’s 200th anniversary with a year of exciting events, special programs, and our bicentennial exhibit, <i>The Academy at 200: The Nature of Discovery</i>. <a href="http://www.ansp.org"><span style='color:blue'>www.ansp.org</span></a><o:p></o:p></span></b></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>