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Faux Flagstone Patio Ideas

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This DIY weekend project will transform a dull concrete slab into a beautiful faux flagstone patio.

Step–by–Step Instructions

Preparation:

  • Prepare the concrete floor by removing any grease
    or heavy stains with Benjamin Moore Industrial Maintenance Coatings Oil & Grease Emulsifier (M–83).
  • Scrub with a stiff bristle brush to ensure that there
    is no debris or dust on the surface. Rinse and let dry thoroughly.
  • Smooth troweled concrete must be etched with a
    10% muriatic acid solution (being sure to use protective eyewear and gloves), following manufacturer's instructions. Rinse with clean water and allow to dry at least 24 hours to ensure the paint will adhere. Note: New concrete should be allowed to dry 60 to
    90 days before etching or coating to create your faux flagstone patio.
  • Apply the base coat and allow to dry for a minimum of 24 hours.
  • Cut or tear various shapes and sizes of upholstery foam to create the flagstone appearance. The bigger pieces should be approximately 10 inches wide with the smaller pieces only 2 inches wide.
  • On a large plastic sheet, pour a puddle of Mountain Retreat 1176, then drizzle pink beach (1172) and wood ash (1065) on top.
  • Use a stir stick to swirl colors together without blending to make sure you can see all three colors clearly. This pool of paint must be bigger than the size of the largest piece of foam.

Stamping the Flagstones:

To bring your flagstone patio ideas to life, the faux flagstone must be stamped. To do this, simply:

  • 9–inch Benjamin Moore roller
  • Roller tray
  • 4–inch thick upholstery foam (various sizes and shapes)
  • Utility knife
  • Plastic sheet
  • Stir stick
  • Disposable latex gloves
  • Newspaper
  • 2–inch Benjamin Moore foam brush

Paint:

For an authentic–looking faux flagstone patio, choose the following paints:

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