Cleaning roughcast

Hi there I have a small mortar stain on the side of my house which isn’t coming up with water. Do you know how I’d clean it?

18 Answers

Plastering
0 Reviews
Bleach works very well on any surface,for outside, I dilute it 50 %. For interior rough surface I would try rubber gloves to hold a cleaning rag wet with 50 % bleach , it will take a couple minutes to work .
15th May 2023
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,Trade centers like B&Q, Wikes, Jewson, Maningham concrete and others have mortar cleaning solution Muriatic acid made from hydrochloric acid-water and other trace minerals. It cleans even old dry cement and other familiar adhesives, tile adhesives and grouts.
21st Apr 2023
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sometimes you have to watch it to be able to answer this question
28th Apr 2023
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Attila & son rendering ltd
1 Reviews, 100% Positive
Well i would do with wire brush or power wash
30th May 2023
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LVCA Construction
1 Reviews, 100% Positive
There is a liquid called Mortar cleaner.
12th May 2023
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Try to remove the cement stains or mortar residue with one part vinegar and one part warm water. Then you brush this solution onto the surface. Leave to absorb and then rinse with clean water. Depending on the type of surface, you can remove cement stains and mortar stains with sandpaper or a scraper.
30th May 2023
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N H PLASTERING
0 Reviews
Brick acid.would be the best solution
9th Jun 2023
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PL Plastering
0 Reviews
A cleaning solution for mortar should be able to sort that for you
3rd Jul 2023
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SB Plastering
1 Reviews, 100% Positive
You need to find where the water riseing because it won't go
28th Jun 2023
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Hawk plastering
3 Reviews, 100% Positive
try removing as much of the cement as u can and soak area with either brick cleaner acidic cleaner let soak in then high powered jet wash and wire brush hope this helps
22nd Aug 2023
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Hi there
If this is brick or stone you could try acid cleaner for bricks or just use a power washer
22nd Aug 2023
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Jb renovation
0 Reviews
Hi I would test a small area with brick cleaner then warm soapy water to clean it down
31st Oct 2023
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Regency ceilings
0 Reviews
Diluted brick acid
4th Dec 2023
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Adam Tomlinson
0 Reviews
Mortar stains can be removed by a jet wash and a stiff brush. But if the mortar stain is ingrained into the surface of the stone paving then a paving specialist will need to remove it
20th Dec 2023
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Brick acid, water and jet wash should do the trick
20th Dec 2023
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Diluted acid wash
19th Dec 2023
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Youngs plastering
0 Reviews
Try using a wire brush or pressure wash
20th Dec 2023
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WPA Plastering
0 Reviews
Clean with a diluted brick acid cleaner or paint over
8th Apr 2024
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