Sealing Bluestone

[gryan]

What is the best product to seal bluestone with? I have customers with it in shady areas that grows mold and moss pretty quickly so it would be nice to have a sealer or water repllant that would buy some time in between cleanings.

Thanks!

[bricktrimble]

I just used Wet N Forget on my clay brick patio last month. It seems to have done a good job in killing the moss (I didn't have any algae or mold). I'm not sure how it would look on bluestone. This is not a "sealer" so it doesn't look glossy, but do you really want a sealer in any case?

Brian Trimble
Brick Industry Association