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How to Remove Ghosting from Porous Chalkboards

Accidentally used your chalk markers on a porous chalkboard? You’re probably dealing with ghosting — a term for the stubborn outlines left behind by liquid chalk. Ghosting occurs when the ink seeps into the “pores” of the board and becomes hard to reach. But don’t worry; your chalkboard isn’t ruined. To clean up ghosting from a porous surface, just follow these steps:

Prepare a foam eraser and a window cleaner or natural chalkboard cleaner.

Spray the eraser with the cleaning solution.

Scrub off tough stains and marks using the foam eraser.

Wipe the board with a dry microfiber towel.

You can also watch our video tutorial on how to remove chalk marker ink.

If all goes well, your chalkboard should be good as new. However, some stains may be especially tough to remove. In this case, you may choose to refinish your sign with chalkboard paint or buy a non-porous chalkboard.