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Lacquering dyed onyx

We dye onyx to get different colors. We recently dyed a red onyx that is bleeding even after a few washes and using a lacquer to seal it. do you have nay suggestions on what lacquer or process will stop the stone form bleeding the dye?
thanks,

Ed Messerly
HOP - San Francisco, California
2005

Use a clear epoxy, get one of the high grade ones and it will keep the dye inside, if you are mounting the stone before selling it I would suggest mounting it first before applying the epoxy. It will keep the stone in place and keep the stone from dyeing someone's hand.

Marc A. Banks
Blacksmith - Shiloh, North Carolina
2005

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