Ask a tradesman


Garden wall

i have built a garden wall with engineering bricks. It had alot of cement on the outisde that required cleaning, i had to use a soltuion to clean it off. since cleaning it off i am left with a white residule. some people say its salt in the mortar and some say something else.

whats is it and how can i clean this off, its seem to run down when it rains.

4 Answers from MyBuilder Bricklayers

efflorescense is wat its called, it is salts from the bricks/mortor due to bad weather it runs down the wall try brick acid


Answered 2nd Sep 2011

The problem could be a number of things really. The best thing to do is, when its dry, clean the brickwork and apply 2-3 coats of brick & mortar sealer. You can get this at any large DIY store.


Answered 2nd Sep 2011

when laying engineering brick, the morter does not need to be so wet, as they are non as porous as normal house bricks, try using linseed oil with a rag and wipe on bricks, this makes the bricks shine and you lose the whiteness in the staining of the mortar. it could be efflorescence (salt) thats coming through but clean again, maybe with wire brush and rag linseed on the brick, taking care not to get it on the mortar.


Answered 2nd Sep 2011

use linseed oil not brick acid takes the colour out the brick


Answered 10th Oct 2011

Post your job to find high quality tradesmen and get free quotes

Can’t find an answer? Ask a new question

Question Categories