Finishing slate with wax 15 Jun 2010 21:21 EDT

Can you recommend me a product other than sealer that can add gloss to already sealed slate?
Customer doesn't want to go into headache associated with st reaping sealer (very thin layer) off the slate. She also didn't like any samples that I made this morning with 3 different sealers but for some reason she likes the look of the waxed floor and doesn't care of the deficiency of this type of finish. The slate is old black Jefferson slate and there is almost 400 sq ft of it.
Adam Bartos
BiO Tile
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