How to Make Paint Adhere to Concrete

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Painting cement creates a unified appearance between the walls of a surrounding structure and the cement pad. Special cement paint is engineered to adhere to cement; you directly apply it in the same manner as you would paint walls. The only requirement is to make sure that the cement is sealed from moisture. Unsealed cement allows moisture to seep through, which will cause the paint to chip and peel. Making the paint adhere properly requires testing the concrete for moisture and sealing as necessary.

Things You'll Need

  • 6-mil plastic sheet
  • Duct tape
  • Concrete sealer
  • Wide-head broom
  • Pump sprayer
  • Tape down a 1-foot square sheet of 6-mil plastic to the surface of the cement. Press duct tape around the edges to seal the plastic properly so that no air or moisture can enter beneath the plastic from outside. Leave the plastic in place for 24 to 48 hours.

  • Remove the plastic. Properly sealed concrete will leave the underside of the plastic dry. Any sign of moisture on the underside of the plastic indicates that the concrete is not sealed; paint will not adhere properly.

  • Spray concrete sealer onto the surface of the cement pad using a pump sprayer. Hold the nozzle of the sprayer approximately 12 inches from the surface of the concrete and spray a smooth, even coat over the whole pad.

  • Scrub the sealer into the concrete with a wide-head broom. Scrub along seams and grooves in the concrete to work the sealant into the pad. Allow the surface to dry according to drying times listed on the container of sealant.

  • Repeat Steps 1 through 4 until no moisture appears on the underside of the plastic sheet.

Tips & Warnings

  • Clean the concrete with a pressure washer and concrete cleanser before applying sealants or paints. Test the concrete near an edge of the pad for more accurate results.

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References

  • Photo Credit Jupiterimages/Creatas/Getty Images
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