Old 08-25-2011, 01:13 AM
  #2  
quilticing
Senior Member
 
quilticing's Avatar
 
Join Date: Dec 2010
Location: Lake City, MI
Posts: 570
Default

Don't do much marking myself but it's supposed to be safe to use. I usually use a sharpened piece of regular chalk. The old-fashioned manual pencil/chalk sharpener works great.
quilticing is offline