THERMAL Pour Point of formulated lubricants

Sun Sep 28 18:01:09 EDT 2003

Hi, Andrew,

The pour point of oils and lubricants is the lowest temperature to which they 
can be cooled before wax begins crystallizing out inhibiting the flow of the 
oil/lubricant.  The crystallization of the waxy component(s) can be measured 
using DSC.  This is done by cooling a sample of the oil to subambient 
conditions at a rate of 10 C/min and watching for the onset of an exothermic 
crystallization event.  The DSC crystallization onset temperature is related to the pour 
point.  

I hope this information is helpful to you.

Best regards from sunny North Carolina,
Bill Sichina
essichina at aol.com
<HTML>Hi, Andrew,
 
 The pour point of oils and lubricants is the lowest temperature to which they can be cooled before wax begins crystallizing out inhibiting the flow of the oil/lubricant. &nbsp;The crystallization of the waxy component(s) can be measured using DSC. &nbsp;This is done by cooling a sample of the oil to subambient conditions at a rate of 10 C/min and watching for the onset of an exothermic crystallization event. &nbsp;The DSC crystallization onset temperature is related to the pour point. &nbsp;
 
 I hope this information is helpful to you.
 
 Best regards from sunny North Carolina,
 Bill Sichina
 essichina at aol.com</HTML>