Question: I am experiencing a white powder coming up through the basement tiles in my 40-year-old Charleswood home. Can you recommend a cure? Possibly, a sealer that I can purchase and apply myself.

It can be quite frustrating when that white, chalky substance known as efflorescence or "new building bloom" shows up on your freshly poured surface. Luckily, efflorescence can be treated and removed, ...

Efflorescence is the white powdery substance you might notice on basement walls, concrete surfaces, or masonry materials. It forms when water moves through a porous material like concrete or brick, ...

I routinely presume that people know all about efflorescence, but in fact many don’t understand it at all. I’m referring to the fluffy white deposits you might find on your concrete floors, brick ...

Q: How can I stop white, salt-like powder from appearing on the block walls of our basement cold room? I brushed it off then washed the wall with muriatic acid, rinsed it down with water, then applied ...

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 ...