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Product Details

For repairing and weatherproofing a variety of roof materials including felt, asphalt, slate, tiles, concrete, brick and corrugated metal. Coverage approx 0.5m2 per litre.

Technical Specification
Brand Thompsons
Colour by dominance Black
Colour by dominance Black
Manufacture ID 30146
Safety Data Sheet click here
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 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.
Thompsons 10 Year Roof Seal Black 4L is rated 4.7 out of 5 by 73.
Rated 4 out of 5 by from does the job you really need to make sure the surface is dry and you ideally need two coats to do a proper job. it needs six hours between coats, so a dry day is needed. having said all that, it does a great job of filling cracks and sealing a roof
Date published: 2020-01-15
Rated 5 out of 5 by from Flat roof protection Used to top up protection of flat roof. Easy to apply and dried quickly.
Date published: 2019-12-29
Rated 5 out of 5 by from Spreads easily Have used before and worked well
Date published: 2019-12-04
Rated 5 out of 5 by from No problems Ordered the item and had it delivered the following day free of charge and well packed. I knew exactly what to expect from the Roof Seal as I had used it on many occasions previously and always keep a supply to hand for touching up purposes
Date published: 2019-11-16
Rated 5 out of 5 by from Easy to work with I have bought 2 fine of this product and find it really good would buy again
Date published: 2019-11-12
Rated 5 out of 5 by from So simple to use and seems very effective It's almost too good to be true. It's water-based and the brushes was out very easily. It forms a plastic-like surface on the felt roofing I used it on. A 4 litre tin also seems to go a long way (3 coats on a 6 x 4 shed roof and 2 x coats for fixes on a lean-to felt roof. It works well, if it actually lasts 10 years it's an impressive product.
Date published: 2019-11-06
Rated 1 out of 5 by from Poor product Bought 2x 4 litre tins for my garage roof as it had been leaking when it rained, and very disappoint with the product. After applying 2 coats and following the instructions on the tin the roof is still leaking, despite the claim that it should fix leaks for 10 years!
Date published: 2019-10-18
Rated 5 out of 5 by from It Works Excellent stuff, we had a slight leak on new log cabin roof and and just painted over the area and no leak now, brilliant.
Date published: 2019-10-07
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