It is recommended that the pebbles be sealed with a quality stone sealer before and after grouting. Stone sealer is available at your local home center/hardware store.
Do I need to seal pebble tile before grouting?
Seal your raw stone tiles before grouting. If you don't apply sealer first, grout will stick tenaciously to the tile surface, and it will be extremely difficult to get off. Grout may also discolor the unsealed tile.
What happens if you don't seal tile?
When grout is not sealed in time, grime and water can seep into it, causing cracks on your tiles and forcing them to break at a certain point. By sealing your grout, you get to prolong your tile surface's lifespan and minimize damage to a considerable extent.
Do you seal pebble tile?
It is recommended that the pebbles be sealed with a quality stone sealer before and after grouting. Stone sealer is available at your local home center/hardware store. Additional applications may be required in areas where there will be water.