Brick Cleaner has left dust residue

Acc72

Hi All,

Last weekend I used B&Q brick cleaner on the front of my house (after cleaning I washed down with clean water etc.).

All looked well - however, the next day when the bricks had dried they had like a covering of dust residue ?

Will this just disappear over time (eg. after a few rainfalls), have I done something wrong, or do I need to do something to get rid if this (I was thinking of the Ronseal rain guard type, which would / might "soak up" the residue ?).

Does anybody have any tips ?

maninthestreet

what colour is the residue? If you get a stiff brush and try to brush it off, what happens?

Acc72

maninthestreet wrote: »

what colour is the residue? If you get a stiff brush and try to brush it off, what happens?

Hi,

The residue is like white dusty (if that makes sense !).

If I rub a brick with my hand it seems to rub off - but then comes back.

The bricks look really good when they are wet, but as soon as they dry the dust comes back.

Save_Me_3

could this be soap residue?

ukwoody

It sounds like Effloresence (not effervescence from fizzy drinks). have a look here. http://www.diydoctor.org.uk/projects/efflorescence.htm

woody