How to Paint New Brick

Written by cody sorensen
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How to Paint New Brick
Paint can brighten a brick wall. (Jupiterimages/Comstock/Getty Images)

New brick is easier to paint than old brick, because the surface hasn't had a chance to get as dirty. Brick is a porous material that is laid and held together with mortar. Hairline cracks in between the bricks and mortar can allow moisture to penetrate the subsurface of the home. When moisture finds its way into these cracks during freezing temperatures, the moisture freezes and expands. This expansion can cause hairline cracks to turn into larger cracks. Sealing the brick and mortar with caulk and paint is a good way to protect and preserve the surface.

Skill level:

Things you need

  • Pressure washer equipped with spray hose and spray gun, 1,500 to 2,000 psi
  • Putty knife
  • Wire-bristle brush
  • Small tub of premixed acrylic mortar patch
  • 80 grit sanding block
  • Acrylic masonry primer
  • 5-gallon bucket
  • Paint roller screen
  • Paintbrush
  • 9-inch roller frame
  • 1-inch nap roller cover
  • Extension pole
  • Caulk gun
  • Elastomeric caulking
  • Painter's rag
  • Exterior elastomeric paint

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  1. 1

    Move everything beneath the brick surface that you don't want to get wet.

  2. 2

    Attach the pressure washing hose, a garden hose and the spray gun to the pressure washer.

  3. 3

    Turn on the pressure washer and spray the brick from top to bottom. Hold the gun about 15 inches away from the wall to begin with and then get closer. Too close and you may damage the mortar between the bricks. Wash away any dust and cobwebs that may have covered the new brick during construction. Allow the brick to dry for 7 days.

  4. 4

    Scrape any loose mortar off the brick with a putty knife and a wire brush.

  5. 5

    Fill all areas between bricks where mortar has come loose or fallen out using a small tub of premixed acrylic mortar patch and a putty knife. Wait 24 hours for the mortar patch to dry and then sand smooth with an 80 grit sanding block.

  6. 6

    Lay painter's plastic beneath every brick surface to protect the ground surfaces from paint drips.

  7. 7

    Pour 1 gallon of acrylic masonry primer into a 5-gallon bucket and hang a paint roller screen from the inner rim of the bucket.

  8. 8

    Slide the 1-inch nap roller cover over the spindle of the roller frame and screw the extension pole into the end of the roller handle.

  9. 9

    Dip the bristles of the paintbrush into the primer paint and dip the roller into the paint until both the brush and the roller are loaded with paint.

  10. 10

    Paint the mortar between the bricks using the paint brush and then roll over the faces of the brick and the mortar cracks with the paint roller. Paint each wall from top to bottom and from left to right until the surfaces have been primed with paint. Wait 24 hours.

  11. 11

    Fill every hairline crack between bricks with elastomeric caulk using the caulking gun for application. Caulk the cracks where wood trim, doors and windows meet the brick surface. Remove excess caulk with a wet painter's rag. Wait 24 hours.

  12. 12

    Apply two coats of elastomeric finish paint 24 hours apart, the same way the primer paint was applied; use the paintbrush and the paint roller.

Tips and warnings

  • Fill extra large cracks with a foam backer rod and polyurethane caulking.

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