Step 1
Put on safety goggles. Open the windows nearest the fireplace to provide ventilation.
Step 2
Use a shop vac to remove residual dust, dirt or debris from the bricks, making sure to vacuum the mortar well.
Step 3
Place a can of sealer into a hand-spraying unit, following the manufacturer’s directions for use.
Step 4
Apply the sealer to the brick using even spray strokes across the entire brick fireplace.
Step 5
Allow the sealer to soak into the brick and dry, as directed by the manufacturer.
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Step 6
Apply a second coat, if desired.