Do It Yourself Mortar Wash
Matthew Perez
Updated on March 12, 2026
The technique called "mortar wash" involves placing a coat of mortar over a brick, stone or concrete surface to either conceal the underlying material or partially conceal it. When used on brick, the technique results in a "painted" look that some homeowners find attractive.
A mortar wash can be applied in thick or thin coats, with or without tint, to achieve a specific look.
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Clean the brick, stone or concrete surface so it is free of dirt, mold and loose mortar.
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Mix one part water to five parts pre-mixed mortar in a large pail. Add tint if desired. Stir until the mixture forms a smooth, stiff slurry.
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Wet the surface you wish to "mortar wash" with water using a brush. Apply mortar mixture to the wet surface with a steel trowel in the thickness desired, working from top to bottom.
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Wipe the surface with a dry rag, if desired, to expose underlying material in certain areas.
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When the mortar wash is dry, sand it, paint over it, or leave it as is.
Things You Will Need
+- Pre-mixed mortar for brick, stone or concrete
- Mortar tint (optional)
- Large pail
- Water
- Large brush
- Steel trowel
- Rags (optional)
- Paint (optional)
Tip
For a thinner wash, add more water to the mixture in Step 2. For a different look, the mortar can be applied with the bottom of a broom instead of a trowel.