Brick/Mortar Acid has left a white stain on my bricks


J

Jon Weaver

My builder has just finished Phase 1 of my conservatory (Base and
Dwarf wall). As he is a bit of a perfectionist and wanted to use
'Brick Acid' to get off any odd splashes of mortar on his brickworkl.

To be honest, his brick work was immaculate and I saw no need for him
to do this, but he wanted to do it, so who was I to argue. He brought
round 15 litres of "Cementone Mortar and Brick Cleaner" which,
according to the container is the right stuff.

We got talking about the quality of his brickwork (good) comparied to
that on my 5 year old house (bad) and he advised that this "Brick
Acid" was just what a needed to get rid of the splashes/smudges of
morter which are all over the brickwork on the house.

As a demonstration he brushed a load of it onto the side of the house,
left it to fizz for a while and rinced it off. It seemed to do a good
job, so I went to work and forgot all about it.

Last night I walked round the side of the house and found this large
'white' patch on the wall (Looks like a salty deposit) over the area
that he had 'cleaned'.. It seems that the 'acid' has done more than
removing the excess mortar.. I tried to clean the bricks with a wet
scrubbing brush and whilst they looked fine when they were wet/damp,
as soon as they dryed, the white stain returned.

The surprising thing is that he used 3x5l containters of the stuff on
my conservatory, which is build with the same bricks as the house and
they still look perfect.

There must be something about the bricks on the house or the method of
application which used on the house. Is this reversable? Is there
anything I can do to clean them up (i.e Jet washer, Scrubbing brush
etc).

I can't tell wether the 'white' is actually a residue (in which case
it might be possible to clean it off), or a 'burn' of some kind (in
which case its probably not)

Does anyone have any experience with this kind of substance?
 
Ad

Advertisements

T

The Natural Philosopher

Jon said:
My builder has just finished Phase 1 of my conservatory (Base and
Dwarf wall). As he is a bit of a perfectionist and wanted to use
'Brick Acid' to get off any odd splashes of mortar on his brickworkl.

To be honest, his brick work was immaculate and I saw no need for him
to do this, but he wanted to do it, so who was I to argue. He brought
round 15 litres of "Cementone Mortar and Brick Cleaner" which,
according to the container is the right stuff.

We got talking about the quality of his brickwork (good) comparied to
that on my 5 year old house (bad) and he advised that this "Brick
Acid" was just what a needed to get rid of the splashes/smudges of
morter which are all over the brickwork on the house.

As a demonstration he brushed a load of it onto the side of the house,
left it to fizz for a while and rinced it off. It seemed to do a good
job, so I went to work and forgot all about it.

Last night I walked round the side of the house and found this large
'white' patch on the wall (Looks like a salty deposit) over the area
that he had 'cleaned'.. It seems that the 'acid' has done more than
removing the excess mortar.. I tried to clean the bricks with a wet
scrubbing brush and whilst they looked fine when they were wet/damp,
as soon as they dryed, the white stain returned.

The surprising thing is that he used 3x5l containters of the stuff on
my conservatory, which is build with the same bricks as the house and
they still look perfect.

There must be something about the bricks on the house or the method of
application which used on the house. Is this reversable? Is there
anything I can do to clean them up (i.e Jet washer, Scrubbing brush
etc).

Time and rain will wash it away. He has just dsturbed the chemistry of
the bricks and mortar..
 
J

Jon Weaver

My builder has just finished Phase 1 of my conservatory (Base and
Time and rain will wash it away. He has just dsturbed the chemistry of
the bricks and mortar..
The only problem is that the part of the house which is 'stained',
isn't exposed to rain or any of the elements.. Its right behind my
fence/gate so is shielded.

Is there anything I can do to accelerate the process?
 
T

Terry

Jon said:
The only problem is that the part of the house which is 'stained',
isn't exposed to rain or any of the elements.. Its right behind my
fence/gate so is shielded.

Is there anything I can do to accelerate the process?
Water hose? Sounds like it's out sight anyway?
 
I

IMM

We got talking about the quality of his brickwork (good) comparied to
that on my 5 year old house (bad) and he advised that this "Brick
Acid" was just what a needed to get rid of the splashes/smudges of
morter which are all over the brickwork on the house.

As a demonstration he brushed a load of it onto the side of the house,
left it to fizz for a while and rinced it off. It seemed to do a good
job, so I went to work and forgot all about it.
Does it take off the old bits of cement? Or does this have to be brushed
off using lots of elbow grease?
 
J

Jon Weaver

finished Phase 1 of my conservatory (Base and
Water hose? Sounds like it's out sight anyway?
"Out Of Sight" to the public perhaps, but its right next to my back
door, so I see it every day..

Today I put a bit of detergent on a scrubbing brush and gave it a good
scrub, but as soon as I dried, it was the same as ever.

I think that I will have to give the manufacturer a ring and see if
they have any ideas!
 
T

The Natural Philosopher

Jon said:
The only problem is that the part of the house which is 'stained',
isn't exposed to rain or any of the elements.. Its right behind my
fence/gate so is shielded.

Is there anything I can do to accelerate the process?
Hose it down.

Or just pee on it.
 
Ad

Advertisements

T

The Natural Philosopher

IMM said:
Does it take off the old bits of cement? Or does this have to be brushed
off using lots of elbow grease?
Bit og both: the calcium carbonate turns to calcium chlride, which can
be ashed away, but if there is sand in teh mortar (not unusual) then
tits cheaper to use a wire brush to get rid of teh bulk after teh acid
wekds the bonding of teh cement.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Similar Threads


Top