Quote:
Originally Posted by davidmash
I laid over 800 sq. We did not seal it before grouting. I used a med gray grout but i had no issues even with the oranges and reds in the tile. Cleaned up quite easy except for the nooks and crannies of the slate but that has nothing to do with not sealing it as far as I can tell. Still have not sealed it 5 years later. Cleans up great with some 409 or Clorox cleaner. Even the kitchen is fine.
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Do you need a 'sealer?' No, however - your floor could benefit from a sealer that enhances (darkens-richens the appearance) of the stone. I've used Aqua Mix's 'Stone Enhancer' on the slate on my Texas home's patio - exposed to the weather/direct sunlight - for almost 10 years now - with no change to it's appearance. Slate is similar to granite - in that it is somewhat indestructible, i.e. extremely non-porous - unlike marble, limestone/travertine.