Brush the entire exterior of the chimney with a wire-bristled brush to remove all debris and to roughen the surface. This will allow the stucco to adhere easily to the brick.
Fill a pump sprayer with degreaser and cover the chimney with an even coating. After 12 to 13 minutes, brush down the chimney with a nylon-bristled brush. Rinse off the degreaser with water. Wait 24 hours for the chimney to dry.
Brush bonding liquid over the entire surface of the chimney. Carefully cover the bricks and grout lines between the bricks evenly.
Pour powdered stucco and water into a large bucket in the ratio outlined on the stucco's package. Stir together with a shovel until the stucco has a uniform consistency.
Pick up some stucco with a flat trowel and angle the bottom of the trowel at 45 degrees to the base of the chimney. Pull the trowel upward against the chimney to spread the stucco. Use long sweeps with the trowel for a smoother finish or short choppy ones for more texture. A depth of 1/2 inch is appropriate for the stucco finish.
Things You Will Need
- Wire-bristled brush
- Pump sprayer
- Masonry degreaser
- Nylon-bristled brush
- Masonry bonding liquid
- Powdered stucco mix
- Steel trowel
- Rubber float
- Wait 15 minutes for the recently applied stucco to dry and soak a rubber float and run it across the finish for an even smoother look.