Begin by removing the old tile or the fiberglass shower wall.
Sealing tile shower walls.
Some tiles are too thick to absorb the sealant so check a small area first.
This is a dusty job so use plastic to cover your doorways wear a respirator that s rated for dust cover the floor with a drop cloth and make sure there s plenty of ventilation.
Simply wipe the surface of the slate tiles with the absorbent paper towels or cotton cloth to remove any wet areas of sealer that are on the surface of the slate tiles and grout.
The standard shower is one of the wettest places on earth with the equivalent of 2 500 inches of rainfall a year.
This means that properly waterproofing a shower is not just a recommendation it is essential in protecting your home or commercial structure from the effects of water.
If the tile soaks up the sealant seal the entire shower.
Shower tiles should be sealed every one to two years depending on how often the shower is used.
Also tile is heavy so put down blankets to protect the floors and tub from being damaged by falling pieces.
The tile does not come down completely to meet the fiberglass but stops slightly above it leaving a small gap.
After you have sealed one wall of the slate tile shower then move on to seal the next adjoining shower wall.