To paint a brick fireplace, sand and clean the bricks and mortar. Apply a primer designed for use on bricks to the surface with a roller. After the primer dries, apply two coats of a acrylic latex paint, and let the paint cure for two weeks before using the fireplace.Continue Reading
Run sand paper over the bricks and mortar to remove loose material. Scrub the fireplace with soapy water and a stiff brush to remove dirt and soot. Rinse soap residue off with a damp sponge. After the surface dries, vacuum to remove any remaining dust.
Use a roller with a 1-inch nap to apply a latex primer recommended for bricks to the entire fireplace surface. Use a paintbrush to touch up areas the roller misses. Let the primer dry all the way. Apply a second coat if there are any dry areas where the primer soaked into the bricks.
Apply two coats of acrylic latex paint with a roller or a large paint brush. Let the paint dry thoroughly between coats.
Let the latex paint cure for two weeks before using the fireplace or setting decor items on the mantle.