1. Applying a good masonry sealer can also help prevent spalling. 2. Besides, sealing the bricks with an ordinary masonry sealer can trap water inside the bricks, making matters worse. 3. A possible cure is to apply a coat of masonry sealer, which will make the stone and the mortar more water resistant. 4. Additionally, you may want to apply a clear masonry sealer to the patio. 5. After cleaning the brick, Mangan suggests using a masonry sealer that protects the brick from water without blocking the natural movement of air through the brick. 6. If this works, seal the floor with a masonry sealer. 7. If the stain comes clean, then seal the grout with a masonry sealer or tile sealer. 8. If the bricks are porous, you can seal them with a masonry sealer. 9. If you apply a standard masonry sealer, it might seal in water that would make things worse. 10. Once you get clean concrete, seal it with a masonry sealer, though that needs renewal once a year. |