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Product Details

High performance, clear waterproofer. Forms a water resistant barrier on porous exterior surfaces, increasing their life by protecting against rain, damp & frost damage. Suitable for concrete, brick, stone, slate, terracotta & render.

Technical Specification
Brand Bostik
Colour by dominance Clear
Manufacture ID 30812236
Safety Data Sheet click here
Volume (L) 5
Delivery details

Our next business day delivery service has now resumed. Order by 9pm for next business day delivery to home or site. Click here for our Easter delivery details.
Due to current trading conditions we have suspended our Turbo and Saturday delivery services until further notice. Deliveries direct from our suppliers are currently unaffected.
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

Click & Collect

Due to the Government’s Social Distancing guidelines and to protect the safety of our people, our customers and the communities we serve, we are unable to operate our branches as they were, so we have launched a new Click & Collect service for essential services. For further information on how this service works please click here.

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 9pm 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 Water Seal 5L is rated 4.9 out of 5 by 16.
Rated 5 out of 5 by from Cheap waterproofer Lovely brush on brick treatment. Strong smell goes away soaks in. Time will tell how effective.high hopes
Date published: 2020-04-07
Rated 4 out of 5 by from Waterproofer As it's a waterproofer I won't know how good it is until it rains.
Date published: 2020-04-04
Rated 5 out of 5 by from Block paving sealant There are a broad range of similar products, but this seemed good vfm and applied easily using paint roller. 1 can did about 9 to 12 sq m. Repelled water very well. suspect it will last about a year
Date published: 2020-03-29
Rated 5 out of 5 by from Thumbs up Only applied one coat so far and it seems to be doing the job all ready.
Date published: 2020-03-13
Rated 5 out of 5 by from bostic waterseal too soon to know how well it works
Date published: 2020-03-01
Rated 5 out of 5 by from Good product, will use again Really happy with this, unlike some water seals, it’s solvent based, so I’d advise using a mask when applying as the fumes are quite pungent. Used a sprayer for ease and it did the job really well. Rained the day after application and you could see the water heading off of the brick work. Did the job very nicely
Date published: 2020-03-01
Rated 5 out of 5 by from Seems the business Bought to seal brickwork on the corner of house as water/ damp was getting into our porch. First coat soaked straight into the brickwork and applied a second straight after and it was running down several bricks so seemed to be sealed well. Several weeks later and after plenty of rain a definite improvement. Would recommend / buy again.
Date published: 2020-02-10
Rated 5 out of 5 by from Best type of sealer Bought to coat my garage brickwork to help stop the damp penetrating the walls, we have had a lot of 'damp' weather ! Found the details of the product and am pleased it is the 'chemical' type rather than water based, having used this type before but find it hard to find anywhere that sells it, most others are water based, not keen on that! Very good price and quick delivery.......
Date published: 2020-01-02
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