Date: Fri, 11 Feb 2005 08:57:40 -0600
Reply-To: Vicki Davis <vickidavis**At_Symbol_Here**SMSD.ORG>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Vicki Davis <vickidavis**At_Symbol_Here**SMSD.ORG>
Subject: Dry Erase Markers
To the List:


I am a high school and community college chemistry and physics teacher.
Over the years I have developed a severe allergy to Expo dry erase
markers.  The original ones manufactured by Sanford Corporation.  They
contain methyl isobutyl ketone and n-butyl acetate plus pigment and
resin.  It seems to be the two chemicals that cause the allergic
reaction as Expo 2 markers I can use okay.  They contain ethanol and


I was wondering if anyone has had experience with this before and if
anyone has any suggestions.  I am on prednisone, double doses of Allegra
180 and double Zantac just to go to work everyday.  The high school has
recently removed all the original markers and replaced with Expo 2, but
I still have trouble, although not as bad.  How long do these chemicals
"hang" in the air or ventilation systems?


Any suggestions would be appreciated.



Vicki Davis

Shawnee Mission West High School

Johnson County Community College

Overland Park, Kansas  66212


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