How to remove salt from cement render?
- Thread starter TommyGun1
- Start date
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you mean the white substance appearing on the bricks, its know as Efflorescence, best way is to brush it off with a stiff brush when it appears or accumulates, eventually it will stop appearing, its as you rightly said salt coming out of the wall as it dries out. Whatever you do dont pressure wash it as wetting it will make it worse.
Repeated brushing is the best way, but you also try a weak acid based brickwork cleaner when you are brushing. But as PVMS said, dont get it too wet. The white deposits are soluble salts which are drawn to the surface and dry out. If you saturate the bricks, all you do is provide more salts and encourage more efflorescence
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