efflorescence

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Description

Crusty, white salt deposits leached from masonry or mortar as moisture passes through.

 

 

 

 

Probable Cause

• Excessive moisture.

• Inadequate venting of interior moisture laden areas.

• The pH level too high or the lack of curing time.

• Excessive lime in concrete mix.

• Soluble salts in masonry when dissolved by water appear on the surface as crystallized salts.

 

Solutions

• Require the elimination of moisture sources.

• Remove all loose paint and other particles with a wire or stiff brush before repainting.

• Fill all cracks with a masonry patching compound. Repair any leaks or other moisture sources.

 

Primers & Interior Finishes

• Masonry primer/sealer is essential and must dry completely before repainting.

• Select a top quality California Paints exterior paint in the color and sheen of your choice.

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