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Progress of painted outdoor concrete cement masonry on a rustic log cabin house with a gray door.
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5 from 1 vote

How to Paint Outdoor Concrete

How to paint outdoor concrete walls like foundations, stucco, and masonry as well as porches and cement. Learn pro tips for a professional grade finish and durable, low maintenance protection that will extend the life of your concrete surfaces.
Prep Time30 mins
Active Time2 hrs
Total Time2 hrs 30 mins
Yield: 1 surface
Author: Rachel
Cost: $100

Equipment

  • Power Washer Optional
  • Handheld Grinder For uneven places or large cracks to repair.
  • Paint Brushes
  • Safety Equipment Safety glasses, gloves, etc if using a grinder
  • Painting Supplies Paint tray, stir stick, paint can opener

Materials

Instructions

  • Patch gouged or otherwise damaged areas with concrete filler.
    Patching concrete with concrete patch tube.
  • Clean the concrete surface to remove mold, algea, dirt, and other contaminants.
    Cleaning concrete with a pressure washer.
  • Let the surface dry thoroghly.
    A rustic deck while refinishing and new boards laid.
  • Brush or roll the paint onto the perimeter of the concrete area and the roll on more paint to fill in, working in one direction with overlapping strokes.
    A person painting concrete with a brush.

Notes

What paint to use on concrete surfaces such as foundations, stucco, or masonry?
Spaces prone to dampness: Behr Dry Plus is a waterproofing paint that helps with any moisture issues. It can resist up to 12 PSI of water pressure. This paint is perfect for a basement that is underground for example.
Exterior applications: Behr Masonry, Stucco and Brick paint is excellent for exterior applications where waterproofing under pressure isn't needed. It has excellent hide, coverage, adhesion and water repellency. 
Uneven surfaces: Behr Elastomeric Masonry, Stucco and Brick Paint. This product is mostly used to even out a surface. It will fill in hairline cracks, but it won't perform miracles. You'll still need to patch anything larger.