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Product Details

Hydrochloric acid based cleaner for exterior use. Removes stubborn stains from brick, concrete, paving and patios, scaffolding and tools.

Hydrochloric acid based cleaner for exterior use. Removes stubborn stains, limescale, ingrained dirt, heavy cement and mortar stains from brick, concrete, paving and patios, scaffolding and tools.
Apply by brush. Use protective goggles, gloves and clothing to cover face, eyes and skin. For exterior use only.
Dilute as stated and test on a small concealed area before proceeding to clean the whole area.

Technical Specification
Brand Bostik
Unavailable offshore
Manufacture ID 30812503
Safety Data Sheet click here
Volume (L) 5
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 10 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 8pm Mon-Sat (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Bostik Cementone Concentrated Mortar & Brick Cleaner 5L is rated 4.8 out of 5 by 6.
Rated 4 out of 5 by from Quality product Used this to clean off white salt deposits from brickwork and mortar stains, has done a sterling job although i had to scrub hard to remove them.. and you will need protective gear on as the acid is strong. I would advise using a long handled brush if possible so the acid doesnt flick back on you from the brush.
Date published: 2019-04-15
Rated 5 out of 5 by from Does exactly what it says on the tub Bought this to clean cement stains from stone wall and worked great especially for the price. Note! This is strong acid so ensure you wear gloves, eye protection and long sleeves.
Date published: 2019-04-03
Rated 5 out of 5 by from Neds carefull handling and diluting but great stu Great stuff, just the job, very effective
Date published: 2019-04-02
Rated 5 out of 5 by from Great but powerfull I bought this about a week ago . Very reliable product when cleaning brickwork make sure you have a full set off PPE WHEN USING great staff
Date published: 2019-03-03
Rated 5 out of 5 by from Great for de rusting metal Saw a guy on you tube using brick acid to remove rust from motorbike petrol tank. Tried this to remove lots of rust from my bike tanks and works brilliant! Much cheaper than buying rust remover from Halfords! You can dilute or use neat. Goes further if you dilute but just leave it longer . Use it for removing rust on any metal nut and bolts but keep off alloys. You just cannot go wrong if you are looking to remove rust
Date published: 2019-01-23
Rated 5 out of 5 by from Outstanding I bought this so I could clean up brickwork after pointing up a section of an old cottage. Someone else gad dobe some BAD pointing sone years before and had left it in a right state. This brick acid not only cleaned up my overspill of mortar but also the mortar that had been stuck on the brick face for twenty years or more. Outstanding stuff. Make sure you use good rubber gloves, mask and goggles. Long sleves are a must also.
Date published: 2018-10-28
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