![A white powdery deposit called efflorescence, common on new brick walls. It is caused by salts in the bricks reacting with rain Stock Photo - Alamy A white powdery deposit called efflorescence, common on new brick walls. It is caused by salts in the bricks reacting with rain Stock Photo - Alamy](https://c8.alamy.com/comp/C41XP0/a-white-powdery-deposit-called-efflorescence-common-on-new-brick-walls-C41XP0.jpg)
A white powdery deposit called efflorescence, common on new brick walls. It is caused by salts in the bricks reacting with rain Stock Photo - Alamy
![White Powder-like stuff on brick? This stuff started appearing on this patch of brick last year, it appears like it is spreading and you can wipe it off with your fingers. : White Powder-like stuff on brick? This stuff started appearing on this patch of brick last year, it appears like it is spreading and you can wipe it off with your fingers. :](https://preview.redd.it/white-powder-like-stuff-on-brick-this-stuff-started-v0-peiappkpo5l91.jpg?width=640&crop=smart&auto=webp&s=40e6bbc21cc443ff4317004fcfc66d4bd1f2aeb5)
White Powder-like stuff on brick? This stuff started appearing on this patch of brick last year, it appears like it is spreading and you can wipe it off with your fingers. :
![Efflorescence a powdery white salty deposit of salts that forms on the surface of bricks brickwall and mortar Stock Photo - Alamy Efflorescence a powdery white salty deposit of salts that forms on the surface of bricks brickwall and mortar Stock Photo - Alamy](https://c8.alamy.com/comp/D5M0Y1/efflorescence-a-powdery-white-salty-deposit-of-salts-that-forms-on-D5M0Y1.jpg)
Efflorescence a powdery white salty deposit of salts that forms on the surface of bricks brickwall and mortar Stock Photo - Alamy
![What is Efflorescence? How to Prevent, Treat and Remove White Discoloration from Concrete | For Construction Pros What is Efflorescence? How to Prevent, Treat and Remove White Discoloration from Concrete | For Construction Pros](https://img.forconstructionpros.com/files/base/acbm/fcp/image/2020/05/Quikrete_Efflorescence_1.5ecd823945b46.png?auto=format&h=800&q=70&rect=0%2C0%2C1200%2C675&w=1200)
What is Efflorescence? How to Prevent, Treat and Remove White Discoloration from Concrete | For Construction Pros
![What is the White Stuff on My Bricks? - Tuck Pointing, Brick and Chimney Repair Toronto | Turnbull Masonry Ltd What is the White Stuff on My Bricks? - Tuck Pointing, Brick and Chimney Repair Toronto | Turnbull Masonry Ltd](https://www.turnbullmasonry.com/wp-content/uploads/2019/01/What-is-the-White-Stuff-on-My-Bricks.jpg)