White powder appearing on bricks

Question

Why are the surface of my wall bricks full of a white powder? Is this dangerous and what should be done about it?

Marcel Ionut · Answer

It’s harmless and you should wait to wear of 
Normally that white powered is the salt comig out of mortar or from bricks

Gaetano · Answer

No it's just the or effervescent or salt petering . Mix equal quatines of water white vinegar in a spray bottle wire brush continue doing this till it stops. A quick cheep method.

Ceejay · Answer

It’s not dangerous at all it’s just the salt from the bricks. You can scrub with soapy water or buy a mixture that will get rid of it.

John · Answer

It’s either cold weather or the mortar not properly mixed as normally u would get this after a wall been built but fades in due time get some brick acid or pave cleaner after you clean off the white get some pave sealer  seal it should do the trick

Matthew · Answer

it is called efflorescence, salt deposits, nothing dangerous, it tends to be from the way the bricks are made by the manufacturer, not usually left long enough, it can be cleaned off but usually always comes back.

Mike · Answer

It is probably salt coming out. Bricks get wet salt in the clay dissolves and is pulled to the surface as it dries.
You can wash it off with acid or leave it and will eventually go

Eric · Answer

Hi This is called effervescence, ( the salt in the bricks ) normally this happens when building in rain and cold conditions this white effect appearers but should dissolve in a few years time !! Should brush off with a hard brush !! Plus don’t think it’s dangerous. Hope this has helped u

Andrew · Answer

Hi this is salt migrating to the surface of the brick,coming out the clay. This is not harmful. Wash off with power washer and may use brick acid,where ppe

Andy · Answer

Hi 
It’s the salt coming out of the bricks.
It will eventually disappear over a certain time

Pete · Answer

Its probaly the moist coming out off the bricks all fine nothing to worry bout

White powder appearing on bricks

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