Should stone in wet conditions be sealed? In the following article, industry expert, Fred Hueston explains why stone in wet areas should not be sealed.
Natural stone has inherent imperfections. Resin fills, reinforces, and strengthens the durability of natural stone, but can be problematic if not done properly.
Darkness from moisture in a poultice application can wick out beyond the original stained area. This is not a stain, and the problem is easy to resolve.