[Histonet] Paraffin Blocks Cracking

Vanessa Avalos vavalos <@t> allergydermatology.com
Wed Jan 4 12:33:33 CST 2012

I have also noticed that the temperature in the lab makes a big difference. Now that it is colder outside and some heaters kick on check your temps. 

-----Original Message-----
From: histonet-bounces <@t> lists.utsouthwestern.edu [mailto:histonet-bounces <@t> lists.utsouthwestern.edu] On Behalf Of Brian foster
Sent: Wednesday, January 04, 2012 10:34 AM
To: histonet <@t> lists.utsouthwestern.edu
Subject: [Histonet] Paraffin Blocks Cracking

Hello all,

 I am studying for my HTL and have a question that has been a problem for me and was wondering if anyione out there can help. "What cuases paraffin blocks to crack ?" So far i have come up with it has to do the crystal formation during cooling, and I have seen some Histonet articles that say the block cooling plate at the embedding may be too cold ( less than -5 C). Can anyone confirm that is the is the correct cause of the problem?
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