Efflorescence is a powdery deposit of salts which forms on the surface of bricks and mortar. It is usually white but efflorescence may be yellow, green or brown. Salts enter the wall from various ...

Efflorescence — the breakout of gray lines on a wall caused by the crystallization of salt within the brickwork — is nothing but an annoyance for most people. But for Tung Huei-ping, an architectural ...

Does your basement have white, fuzzy stuff showing up on masonry walls or floor? Does paint peel off in certain areas of blocks or poured concrete no matter how often you recoat? This problem might ...