Don't know if this will help but thought I would post just in case. I just ran across it while snooping the Rowmark site.
http://www.rowmark.com/MARK/techhelpdocs/working_with_sheet/CleaningRowmarkProducts.pdf
Edited to replace BrianC's file with link to same file on Romark's site
Could edit the message but wouldn't let me delete the attachment.
Sorry, Brian!!!