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 ...

Efflorescence is what that white powder on your walls really is -- it can appear on a surface wherever moisture is present, ...

How to Identify Efflorescence in Your Basement Color and Texture: A white or light gray powdery substance that’s easily brushed away with your hand. Location: Typically found on foundation walls ...