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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

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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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€29.95 Incl. 20% VAT

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Thompsons High Performance Roof Seal Black 2.5Ltr is rated 4.0 out of 5 by 16.
Rated 5 out of 5 by from roof sealant this product did the job perfectly, easy to apply to existing garage roof felt
Date published: 2014-08-15
Rated 4 out of 5 by from fixaleak I tried this product rather than replace the whole roof covering, applied the seal to all the joints. It rained overnight and the following day, no signs of water penetration therefore can only state that the product does exactly what it states. How long for ?
Date published: 2014-08-13
Rated 5 out of 5 by from Thompsons bitumatic roof seal A bit disapointed with the coverage, barely 0.5ltr per sq metre of roof. I only wish this had been stated on the write up. But it seems to be an excellent product for repairing a leaky roof, although it has yet to rain really hard. Easy to apply.
Date published: 2014-06-20
Rated 5 out of 5 by from sealer waiting to use product have used it before and gave rating on that.
Date published: 2014-05-24
Rated 5 out of 5 by from excellent product this roof seal was brilliant. OK i did use it on concrete tiles to seal and change the colour of a tired old roof but WOW its so good! Coverage was 65 concrete tiles (textured 12x16 inch teracotta coloured) needed 2 tins to complete the job. got covered in the stuff and it washed off so easily. brushes and kettle came up like new
Date published: 2014-05-05
Rated 5 out of 5 by from Thompsons HP Roofseel I made sure the weather was going to be dry for at least 24 hours before using the product. In my opinion this is very important to ensure it really seels well. I was re-seeling a small flat roof on a window bay that started to leak a few weeks back. The seeler was very easy to apply and I put it on thickly. The temperature was around 15C with a slight breeze and it dried within a couple of hours. By the following morning the seeler had set really hard and looked as thought it didn't need another coat, but I gave it one anyway. I am confident the roof will remain water proof for years !! A VERY GOOD PRODUCT IN MY OPINION, WHEN APPLIED CORRECTLY !!
Date published: 2013-09-28
Rated 5 out of 5 by from Excellent product This works as it's supposed to. I have used it on many projects over the last six years or so with excellent results. Ignore the bad reviews, this is not emergency roof seal that can be applied in the rain, this is for preventative maintenance and as with most roofing products to be applied in good weather. Thompsons manufacture an emergency roof seal so in the case of the bad reviews...buy the right product!
Date published: 2013-08-07
Rated 4 out of 5 by from Roof sealant Very easy to apply with good coverage per litre. If you use a roller or wide brush it is a bit messy to get out of the plastic container.
Date published: 2011-10-30
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