You can always melt the paraffin wax at any temperature above its melting point, but that does not change the characteristics of the wax and those with lower melting point are more compressible. René J.
From: "Marsh, Nannette" <n...@stowers.org> To: 'Rene J Buesa' <rjbu...@yahoo.com>; "Jones, Laura" <lpjo...@srhs-pa.org>; "Histonet@lists.utsouthwestern.edu" <Histonet@lists.utsouthwestern.edu> Sent: Friday, April 26, 2013 11:29 AM Subject: RE: [Histonet] Paraplast Xtra Melting Point? On the back of the bag are the instructions : 52 degrees melting point: for best results, use at temperatures above 56 degrees. Would it make a difference if it melted at the lower temperature but, embedding is done at the warmer temperature? Just wondering. Thank you for your response. Nanne Marsh -----Original Message----- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Rene J Buesa Sent: Friday, April 26, 2013 8:52 AM To: Jones, Laura; Histonet@lists.utsouthwestern.edu Subject: Re: [Histonet] Paraplast Xtra Melting Point? The "rule of thumb" is that the lower the paraffin melting point is the higher the compression rate is. It would be nice to ask the manufacturer why the change; perhaps they have added something that reduces the melting point, but I really do not think they should do that without warning the users. René J. From: "Jones, Laura" <lpjo...@srhs-pa.org> To: "Histonet@lists.utsouthwestern.edu" <Histonet@lists.utsouthwestern.edu> Sent: Friday, April 26, 2013 9:41 AM Subject: [Histonet] Paraplast Xtra Melting Point? Happy Friday to all! For those of you who use Paraplast Xtra, had you noticed that the melting point printed on the bag has changed from 56 degrees to 52 degrees? I've seen several comments recently about problems with compression with this paraffin; and we have been experiencing the same problem. A friend and former coworker contacted me about similar problems they are having in her new lab, and they had noticed the change in the melting point. We get our Paraplast Xtra from Fisher, but it's difficult to say who is actually making it from the information on the bag. Does anyone else have experiences to share? I'm uncertain if this is the cause of our compression issues, but I'm throwing it out there for all of you experts. Thank you in advance! ________________________________ Sharon Regional Health System is the area's largest hospital and provider of health care services. Visit us online at http://www.sharonregional.com/for a complete listing of our services, primary care physicians and specialists, and satellite locations. Confidentiality Note: This message is intended for use only by the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. Thank you. _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet
