Thompsons High Performance Roof Seal Black 2.5Ltr Product Code: 46708

Highly flexible black coating that outperforms bitumen-based products. Resists cracking during expansion and contraction. Rainproof in 6 hours. No primer required. Will last up to 10 years.


  • 2 Applications Required
  • Suitable for Roofing
  • Long Lasting
  • Model No: 30144X
  • Low Odour
  • UV & Weather-Resistant


Curing time: Dries in 6 Hours. Coverage: 2 sqm per litre.
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Safety Data Sheet
Additional Information
Technical Specification
  • Resistant Type : UV & Weather-Resistant
  • Brand : Thompsons
  • Product Type : High Performance Roof Seal
  • Suitable Application : Suitable for Roofing
  • Volume : 2.5 Ltr
  • Total Product Weight : 3840 kg
  • Model No : 30144X
  • Coating & Finishes Drying Time : Dries in 6 Hours
  • Colour : Black
  • Pack Size : 1
  • Manufacturer Guarantee : 10 Year Manufacturer's Guarantee (T&Cs Apply)
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

Free delivery on all orders over €70.00

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Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


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€23.95 Incl. 23% VAT

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Thompsons High Performance Roof Seal Black 2.5Ltr is rated 4.2 out of 5 by 64.
Rated 4 out of 5 by from Easy application Not a bad product....remember to give tin a good mix beforehand and definitely apply second coat...if applying over felt make sure felt is secure to prevent movement as I found out.. ..easy to apply and I found the overall product satisfactory. ..
Date published: 2018-05-09
Rated 5 out of 5 by from just the job easy to use, quick drying, good colour and washes out easily
Date published: 2018-05-01
Rated 1 out of 5 by from Not the best Bought 2 tins of this, have put 2 coats on new wooden roof, heavy drips of rain still coming through knots in wood, will put another couple of coats on to see if it improves, if not will buy another product to see if I can rectify problem.
Date published: 2018-04-25
Rated 5 out of 5 by from Did the job... Used this on my flat roof after discovering cracks in the roofing felt, which lead to a leak over my rear door....repaired the cracks with mastic and overpainted with roof seal.... It's now rained twice, and it hasn't leaked....I doubt it will last ten years, but will keep the receipt & check!....
Date published: 2018-04-23
Rated 5 out of 5 by from Roof Sealer I used this on a concrete flat roof. It is just a bit thicker than normal gloss paint. So it is easily painted on. It goes on grey and drys black making it easier to apply. The next day it rained and there was not a single leak. Great product.
Date published: 2018-03-22
Rated 1 out of 5 by from Dissolved in rain 24h later. The product turned into grey milky pools and dissolved off my flat roof 24 h after application when it first started to rain - complete waste of time and money. The stated drying time of 6h is a fiction; this product is useless in any country where it rains more than once a week.
Date published: 2018-01-27
Rated 5 out of 5 by from Good paint I only used this paint at the weekend but already it seems to be doing a good job stopping any water getting in.
Date published: 2018-01-22
Rated 5 out of 5 by from Great product. Bought this to repair a crack in shed roof felt. Knocked the tin over, so ended up doing the whole roof lol. Consistancy of non drip emulsion, and easy to spread using a paint brush. Goes on grey, and dried close to black so easy not to miss any bits. Tin advises not to use in under 10c conditions. I can confirm at 6c it took a good 24 hrs to dry. Easy to clean brushes/ hands in warm soapy water. Will apply the second coat when the weather warms up. Leaves a good finish though, and with a 10 yr guarantee you cant go wrong!
Date published: 2018-01-14
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