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Old 12-05-2017, 02:54 PM   #3
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Join Date: Jan 2016
Posts: 120
The following is what I use to tell if the slab is dyed.

1. Take a white rag and pour some acetone on the rag and wipe. If you get no color transfer to the rag go to the next step

2. Take some MEK and pour it on another clean white rag and wipe the slab. If you get color transfer its dyed
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