Re: HELP!!!new slate bleaching out on edges
Oddly enough, and I hate to be the one to tell you but, that slate tile, and particularly that Home Depot slate isn't and never was meant for a shower. It’s remarkably porous. It looks like the pigment from your grout is bleeding into the tile. That's only the beginning of the problems. The tile will quickly mildew and blacken along the edges and will be very difficult to clean.
It is tile and it is stone and it is slate, and which by definition is hard sand and water seeps through it and if not it, through it’s grout. You'd need a dozen coatings of sealer to hope to stop the moisture but it's a dry slate, it soaks up moisture. And, unless you have a remarkably excessive amount of sealer, it still seeps through.
I don't know of any reliable way to seal it completely, perhaps someone else may.
That slate was never intended for a shower wall. It’s floor tile and not for an excessively wet floor.
The moisture content will eventually even out, but it will always discolor.
Lastly, the Romans used slate at many locations for water exposed tiles. It took a few thousand years, but it looks nice now.
Last edited by KKelly; 01-24-2009 at 08:15 PM.
If I only knew what I was doing!