DIY Stucco Sprayer

Applying your own stucco spray is a straightforward job, requiring the right proportions of mix and spay-action technique.

Stucco has an irregular, grainy texture.
Stucco is a combination of cement, sand, lime and water. The mix is often applied to the exterior of a home in lieu of brick or vinyl siding. Stucco is possible to adhere by hand, although using a sprayer reduces application time considerably. Rent or buy a stucco sprayer from a home supply store and get to work with a friend to expedite the process. First, don old clothes, and slide on work gloves, a dust mask and safety glasses to protect skin, lungs and eyes.

Mix the stucco. Fill a cement mixer with 1 cubic foot of hydraulic or masonry cement mixed with hydrated lime; 3 cubic feet of plaster sand; and 5 gallons of fresh water. Mix for 60 seconds until the stucco resembles a thick paste. The mix is enough for "1,440 square feet at one half inch thick per hour," according to Mortar Sprayer.

Stop the mixer. Shovel the stucco into a wheel barrel. Wheel the barrel over to the place where your stucco work will begin. Keep a wheel barrel filled with stucco within at least 6 feet at all times during the process.

Turn on the gasoline engine connected to the sprayer.

Dip the stucco hopper directly into the wheel barrel mix. Fill the hopper with stucco and remove it. Hold the stucco sprayer perpendicular to the wall. Position the nozzle 12 inches away from the wall.

Pull the sprayer trigger. Hold the trigger for one second and release. Move the nozzle up and down in a vertical motion or back and forth in a horizontal motion as you spray. Spray at one- to two-second intervals. Refill the sprayer hopper every 10 or 15 seconds.

Spray stucco until it's 1/2 inch thick on the wall. Turn off the sprayer engine. Duck the hopper into a fresh bucket of water to rinse it off. Even out the stucco -- if you want -- with a large metal paint scraper. Place the scraper blade flush against the wall. Move the blade in arcing motions all around the surface to even the coating.

Things You Will Need

  • Work gloves
  • Dust mask
  • Safety glasses
  • Cement mix
  • Plaster sand
  • 5-gallon bucket
  • Cement mixer
  • Shovel
  • Wheel barrel
  • 6-horsepower to 7-horsepower gasoline engine
  • Large metal paint scraper


  • Stucco spraying is a messy job, so be prepared.

About the Author

Jeffery Keilholtz began writing in 2002. He has worked professionally in the humanities and social sciences and is an expert in dramatic arts and professional politics. Keilholtz is published in publications such as Raw Story and Z-Magazine, and also pens political commentary under a pseudonym, Maryann Mann. He holds a dual Associate of Arts in psychology and sociology from Frederick Community College.