is this safe to use on a simonis???

i vacuum my tabke regularly but am getting really blue hands lately
is this safe to try and pick up the chalk/dirt??
https://www.schticky.com/?mid=7426099

bbb..You didn't get many replies. Have you tried hot water?
I vacuum and wipe the table surface with a hot damp towel.

I don't think that is okay if your slate seams are filled with water putty.
My table seams are filled with plastic Bondo and won't absorb the water.
.
 
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