Sorry folks  sent the wrong tip..Lets try this again
 
 
Removing Pencil Marks
 
How many times have you seen pencil marks that installers have placed on stone. You try all kinds of chemicals to remove it and nothing works. Next time try using a pencil eraser. .No kidding it works great.  This also works for removing white marking pen that many fabricators use on engineered stone.  As always make sure to test first.
 
Dr Fred
www. stoneforensics.com