Efflorescence/Motting

How we will solve your problems

Crusty white salt deposits that bubble through the paint film from a masonry (brickwork) structure. Salt in the brick or concrete become dissolved with water and then leach to the surface as the water evaporates.

POSSIBLE CAUSES:
• Failure to adequately prepare surface by removing all previous efflorescence.
• Excess moisture escaping through the exterior masonry walls from behind.

SOLUTION:
• If excess moisture is the cause, eliminate the source by repairing the roof, cleaning out gutters and drainpipes, and sealing any cracks in the masonry with a high quality, water-based all-acrylic or siliconised acrylic sealant. If moist air is originating inside the building, consider installing vents or exhaust fans, especially in kitchen, bathroom and laundry areas. Remove the efflorescence and all other loose material with a wire brush, power brush or power washer; then thoroughly rinse the surface. Apply a quality water-based or solvent-based masonry sealer or primer, and allow it to dry completely; then apply a coat of top quality exterior house paint, masonry paint or elastomeric wall coating.

Developed by Blueprintit (011 475 7927)