Granite tile on sheetrock?
If you are thinking mastic, research the type.
We had white granite that our Company was using mastic to apply to drywall and it bled through 1/2" granite and left oily looking spots on all of it.
Maybe make sure granite is sealed on back?
Can correctly identify Shinola 3 out of 5 times*
*Under ideal conditions
Some days, my Life needs a Rewind/Erase Button.
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