Micah,
It sounds like you could be using too much powder or that stone could be very acid sensitive. Do you have enough neutral cleaner in your water barrier? You could also try other polishing compounds. MB-22 works great in situation like this.
Send a pic of the stone!
Kevin Hudson
N-Motion Stone and Tile
Sent from my iPhone
> On Aug 12, 2015, at 9:51 PM, Micah <micahgautier@gmail.com> wrote:
>
> Doing a large marble job, grind 220, 400 polish, using 5X, for some reason no water barriers are working and the tile is etching badly, any advise?
>
> Micah
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