I have a stone foundation in my basement which was re-pointed about 4 years ago.
While slight, the mortar crumbles a little bit over time. As a result, it causes a bit of a mess with the dust at the edge of the flooring.
I would like to seal or coat the stones and mortar so that crumbling stops. I don't want to paint the stones, just seal or coat them with something clear. Any suggestions on what kind of product to use to do this?
I was thinking of using something like this: http://www.homedepot.com/p/Seal-Krete-1-gal-Original-Waterproofing-Sealer-100001/100144884
However, I am unsure if that would be effective or cause any problems with the stone and mortar wall. In addition, I am located in Canada and the Home Depot in Canada does not seem to carry this product.