Re[2]: Polystyrene and oil?

• To: tesla-at-pupman-dot-com
• Subject: Re[2]: Polystyrene and oil?
• From: Aric_C_Rothman-at-email.whirlpool-dot-com (Aric C Rothman) (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Tue, 20 Oct 1998 11:44:41 -0600
• Approved: terryf-at-verinet-dot-com

     I, too, am using styrene in a capacitor (stack, not rolled, however).  
     I've been concerned with styrene's resistance to oil.  I found a site 
     at
     
     http://nunc.nalgenunc-dot-com/scripts/nalge/nunc/surface/chem.asp
     
     that provides information that is both useful and cryptic.  If one 
     requests chemical resistance information on styrene for all chemicals 
     in the database, you'll be told that styrene is resistant to paraffin 
     oil and mineral oil, but not petroleum oil!  Can anyone clarify the 
     difference?  Is petroleum naphthinic(sp?) vs. paraffinic for mineral 
     and (obviously) paraffin oil.  Should a product like Diala-AX (Shell's 
     transformer oil) be considered petroleum oil or mineral oil?
     
     I'm tempted to get a five gallon jug of corn oil and use that!  I 
     don't want to dissolve my precious capacitors!
     
     Aric
     


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Subject: Re: Polystyrene and oil?
Author:  Tesla List <tesla-at-pupman-dot-com> at Internet
Date:    10/19/98 6:06 PM


Original Poster: David Huffman <huffman-at-fnal.gov> 
     
This is interresting to me because I plan to use some polystyrene 0.023" for 
a rolled cap. I guess age testing would be in order. I will place some in 
transformer oil and see what happens.
Dave Huffman

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