Bostik Cementone Water Seal 5L

By Bostik Product code: 99144 Pack size: Each

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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

Covid-19 Update

  • Free Next Business Day delivery for orders over £25 to home and site is available for orders placed before 6pm
  • 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
  • Pre-12 delivery service is now available. Place your order before 6pm Mon – Fri for next business day delivery by 12pm. Orders placed after 6pm Friday and before 6pm Sunday will be delivered by 12pm Monday. UK mainland
  • 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
  • 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

  • Branches are now fully open and operating safely in line with government guidelines
  • Safe contactless collection is available 7 days a week at our branches
  • Our branches are open 7am-8pm Monday-Friday, 7am-7pm Saturday and 9-4pm Sunday
  • 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.
Bostik Cementone Water Seal 5L is rated 4.7 out of 5 by 83.
Rated 5 out of 5 by from Does what said it does am very happy with this product
Date published: 2020-07-18
Rated 5 out of 5 by from fab sealer too many people buy this for the wrong reasons, this wont create a shine on your bricks or seal a cracked birdbath its not a filler or stain product, read the tin but if your after a protection on your bricks,patio,driveway etc that will prevent water entering then this product is for you just make sure your area is clean and no cracks show if so fill them this is a water sealer nothing else
Date published: 2020-07-18
Rated 5 out of 5 by from Half of the price of the well known brand but just I purchased this as my interior cavity wall was wet with downpours. I sealed some of the bricks with cement to point and then used this ok the exterior wall. The water beads off off it and I am currently not having any issues with wet coming in. The competitor cost twice as much, really easy to apply with a spray the type you use for weed killer. Took me about 15 minutes or less to do
Date published: 2020-07-11
Rated 5 out of 5 by from Boston Water Seal Does the same job as another brand which is nearly double the price. Dries clear, you would never know it was on the wall until it rains. The rain forms beads of water and just rolls off the brick face. Very good gear.
Date published: 2020-07-08
Rated 5 out of 5 by from ** Just the Job ** Excellent! Easy application! Job done!
Date published: 2020-07-07
Rated 5 out of 5 by from Works as Stated I had a new patio built recently and I wanted to ensure the granite was well protected from the word go. I was recommended this product and it appears to be doing the job. Rolled it onto the slabs and leave it to dry for at least 12hrs We’ve since had some rain and the water just runs down to the drain and any other markings on the slabs are easily washed including wine, bird poo etc. Great product.
Date published: 2020-07-06
Rated 5 out of 5 by from Effective Product went on well and seems to be water repellent after 1 hour
Date published: 2020-07-01
Rated 5 out of 5 by from Easy to apply Arrived swiftly , easy to apply
Date published: 2020-06-30
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