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: €15

Free delivery on all orders over €70.00

Click here to see information on our delivery charges and times



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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€30.45 Incl. 20% VAT

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Thompsons High Performance Roof Seal Black 2.5Ltr is rated 4.3 out of 5 by 81.
Rated 5 out of 5 by from Very good Used to seal above upvc conservatory which the weather had eroded original silicon. Application was very easy using small radiator emulsion roller. Consistency was that of a thick gloss and applied generously. Time will tell as to effectiveness hence 4 stars.
Date published: 2019-04-24
Rated 5 out of 5 by from Great Finish The paint was easy to apply, if a little thick. The manufacturer recommends two coats, I applied the first with a brush, the second with a roller. The finish looks great with a uniform smooth surface which is flexible. I gave the product a reliability score of 3* as it's too early to say how the the paint will last, but I'm happy so far. :-)
Date published: 2019-04-24
Rated 5 out of 5 by from Excellent Product Highly recommended. I used Roof Seal for my flat roof. It came up a treat. Excellent product and with a 10 year Guarantee you can't go wrong.
Date published: 2019-03-24
Rated 5 out of 5 by from Excellent Product Execellt product and would recommend to anyone that needs to seal a roof.
Date published: 2019-02-28
Rated 5 out of 5 by from Cure leak in one coat Had a leak on a utility flat roof, the felt looked ok but I couldn’t see a hole ? I painted the roof after getting surplus water off, the temperature was +5 and so far it hasn’t leaked I’m going to give it a second coat when the weather allows Saved a fortune if I had to refelt the roof
Date published: 2019-01-23
Rated 5 out of 5 by from Really easy to apply and use Great product and really easy to apply. Really does create a seal and protects against water.
Date published: 2018-12-11
Rated 5 out of 5 by from Thompson roof seal Very easy to apply goes on dark grey but dries black
Date published: 2018-12-08
Rated 5 out of 5 by from Fantastic Sealant Bought this to seal a leaky flat garage roof and 2 coats has sorted the drip out completely. Would recommend the product for similar jobs.
Date published: 2018-12-08
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