Sharpie - Permanent Markers - Remove and Test

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       A quality dry erase surface is impervious to ink and will allow removal of even Sharpie type ink after months and months of being left on board.   Below we have some test results of Sharpies being put on various surfaces and how well they can be removed.    This test while not a test directly of dry erase ability does show what misuse will due and we think is a good predictor of longevity when non dry erase markers are used.  
       A surface could last thru its warrantee time and work perfectly with dry erase only markers and no use of improper cleaners
      Grooving seems to be a slight softening or removal of surface that we think will degrade dry erase ability and may be equal to use of disinfectants and harmful cleaners.

We use a standard Expo bold black marker as the solvent!
       A+ removes fine with no shadow or bad effects
       B black gone but physical grove left 
       F clearly visible strong shadow left board ruined

F clear stain

About Our Boards and US!
Indoff CT is a master at producing quality custom printed dry erase boards.