How many coats of sealer are required to seal a tile?
That depends on the type of sealer to be used and the porosity of the tile. The more porous the tile is the more sealer it will accept. However if you are using a penetrating sealer on a low porosity tile it is common sense that the tile will only accept a small amount of sealer. Therefore it is good practice to apply thin coats until the tile is saturated and subsequent coats will not penetrate the tile.
