Your fireplace wall can begin to look dirty and dingy over time due to ash and soot from the fireplace. Cleaning the brick and adding a coat of sealant will make the wall look shiny and new. The cleaning will renew the colour of the brick and the sealant will add a shiny topcoat. This topcoat will not only make the brick look fresher but will also make the wall easier to wipe clean. With a coat of sealant, you will be able to easily remove fireplace soot with soap and water.
Combine 1 tbsp of dish washing soap and water. Dip a scrub brush into the mixture and scrub the brick to remove all dirt. Scrub the mortar with a soft-bristled toothbrush to remove stains.
Dip a sponge into clean water and wipe away soap residue from the brick wall. Allow the brick to dry for at least four hours.
Apply chemical paver stripper to the brick with a paint roller. Roll on a thick coat of the chemical and let it penetrate any existing sealant for 10 to 20 minutes.
Scrub the bricks again with the soapy water to remove the chemical residue and the existing sealant.
Allow the wall to dry for two to three days so the wall is completely free of moisture.
Apply a brick sealer with a new, clean roller. Roll on the sealer in a thin, even coat. Let the first coat dry for four hours. Apply a second coat. Let the final coat dry overnight before using the fireplace.
Sealant comes in matt, satin and high gloss finishes. Choose the level of shine that you prefer.