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Slate Blackboard

Posted by oceangirlme (My Page) on
Tue, Nov 4, 08 at 18:09

I have an old slate blackboard that used to be found in schools. There is a stain that looks like it was some sort of white liquid. Any suggestions on how to attempt to clean this? I don't want to damage the slate. Thanks.


Follow-Up Postings:

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RE: Slate Blackboard

Soap and water is a good starting place.
Linda C


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RE: Slate Blackboard

Oxiclean and water was used with a 3M pad. The stain is still there which is why I am looking for ideas for the next step. Thanks.


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RE: Slate Blackboard

Do you know what caused the white stain?


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RE: Slate Blackboard

Is it obviously a "stain". Slate comes in several colors and the sources of slate may have mixed colors. Could this be a natural discoloration?


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RE: Slate Blackboard

I don't know what caused the stain. The blackboard came from my Aunt's estate. The stain looked like something dripped on it - it's definitely not natural to the slate. Thanks.


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