Magic Eraser should do it. It may peel off the paint on the bench, though. Worth a try I guess.

Voting Question: Forgot to file a schedule M, will i be reimbursed? ... Resolved Question: How to remove dry erase marker from unsealed stone? ...

How can one remove magic marker from unsealed light coloured slate? ... to remove permanent marker that you have accidentally written on a dry erase ...

Jessica asked: How can I remove a stain from the grout on my unsealed, natural stone floor in my bathroom? A bottle of blue window cleaner fell over on my ...

Jul 15, 2010 ... After it is dry, re-spray with the 50/50 solution and whipe with a soft ... to Remove a Stain from Grout on an Unsealed, Natural Stone Floor ...

It is made to look like brick, slate, flagstone, stone, tile or even wood. ... The water seems to have caused spots that look dry or unsealed. ...