sealing slate

[Bandguy]

Our pool contractor used slate for our pool coping. It did not take very
> long for the slate began to flake and get kind of muddy, making a mess in
> our pool. I went to a stone yard to ask for advice and they told me to
> use masonry lacquer ( I don't recall the brand). The lacquer is really
not
> working as I had hoped... in high use areas it tends to peel. Not sure
> what to do. By the way, we have a salt water pool... not sure if this
> compounds the problem or not.

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[joh]

Hi Bandguy, do you have any pictures of the stone?

[Stonehenge]

Hi Bandguy,

There are some forms of slate of which are not appropriate for high moisture conditions, I call these "melters". While I would love to call out a resolution, replacement may be the best advice.

Michael of Stonehenge

[Bandguy]

I do not have a picture... we will try to download one from our digital camera.

[diego79]

Would using a stone denisifier work?