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Product Details

Easy to use two-coat system. Mix with water and apply with a brush. Provides a waterproof coating for brickwork, concrete and stone. Suitable for above and below ground level. Resists positive and negative water pressure, and is water vapour permeable.

Technical Specification
Brand Bostik
Manufacture ID 540224
Safety Data Sheet click here
Weight (kg) 20
Delivery details

Covid-19 Update

  • Free Next Business Day delivery for orders over £25 to home and site is available for orders placed before 5pm
  • Saturday and Sunday delivery is now available for orders placed before 4pm on Friday for Saturday delivery and 4pm Saturday for Sunday delivery, see here for details
  • We have temporarily suspended our Pre-12 delivery service
  • Once your order has been dispatched you will receive an invoice email with the courier details and your tracking number
  • Alternatively go to MyAccount, click on your Order History, click on the TRACK icon to link through to the carrier website and the tracking details for your delivery
  • If your order contains more than one item it may be split into two deliveries as we manage volume across our network
  • Due to carrier constraints it is not currently possible to deliver age restricted items. Please use our Click & Collect service for these products
  • Delivery direct from suppliers is now available and specific delivery times will be displayed on the product page
Order Value: Under £25 Over £25 but less than £75 £75 & Over
Next Business Day Delivery (Mon-Fri) usually before 6pm £5 Free Free
Pre-12 Delivery before 12 noon Next Business Day £10 £5 £5
Remote areas standard delivery (2-4 days) £5 Free Free
Saturday Delivery order by 4pm Friday £10 £5 Free
Sunday Delivery order by 4pm Saturday £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

Covid 19 Update

Click & Collect

  • Safe contactless collection is available 7 days a week at our branches
  • Our branches are open 7am-5pm Mon-Sat and 9am-4pm Sun
  • Keeping our colleagues and customers safe and well and respecting stringent social distancing requirements is our number one priority – 2 metre rule enforced
  • Our available product range will not require more than 1 person to lift
  • Please see our guide to click and collect below

  • Please ensure that your mobile number is added so that we can text you when your order is ready to collect

Call & Collect

Due to current trading conditions we have suspended our Call & Collect service until further notice.

If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 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 7pm Mon-Fri (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.
Reviews
Bostik Cementone Tanking Slurry 20kg is rated 4.7 out of 5 by 34.
Rated 5 out of 5 by from Read the instructions This stuff is excellent - but you have to work it in, and leave a thick coating - twice. If you put it on too thin, you will fail.
Date published: 2020-05-20
Rated 5 out of 5 by from Tanking slurry I had bought this product before & is really good for stopping damp coming through walls
Date published: 2020-05-19
Rated 5 out of 5 by from It Works -Tanks Wet Cellars Had very wet unusable external cellar -water flowing across in winter and out of door . First used waterproof quick setting cement to plug small wall leaks and seal between cellar floor using fillet around perimeter .Then tanked all cellar walls with this product (to 1.5m from floor in my case as no damp above 1m brick line line ) . Applied two coats - mix well apply with trowel .When all cured I applied maepei floor leveling compound (also good ) . Finished floor using a quality 2 part epoxy paint (really worth paying extra for the epoxy paint it lasts so long even in tough factory env.) . 3 years later still excellent - no water or frogs just cool and very dry usable room.
Date published: 2020-05-15
Rated 3 out of 5 by from Good, but there better products available. This poduct seems like good value, but it is quite difficult to mix to the right consitency and it doesn't go as far as you might expect from the specification. But it does dry nicely, and did look excellent once finished.
Date published: 2020-05-09
Rated 5 out of 5 by from Excellent Does what it says on the tin
Date published: 2020-05-07
Rated 5 out of 5 by from At last something that does what it says Does exactly what it says on the tub
Date published: 2020-05-01
Rated 5 out of 5 by from Tanking Mix Never used this before, but very easy to mix (with paint stirrer in drill). Applied to wall with brush as per directions. Coverage was good and easy to apply. Would definitely recommend.
Date published: 2020-04-11
Rated 5 out of 5 by from Cellar tanking slurry Bought this after lots of research to tank my cellar. Only bought one tub to see how far it goes - will need a couple more tubs to finish the job, but the product is easy to mix and apply and does go a fair way when mixed correctly. Good price for product.
Date published: 2020-04-02
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