Dow Corning 791 Weatherproof Silicone Sealant Anthracite 310ml Product Code: 44836

Low modulus, one-part silicone sealant that gives excellent adhesion to both porous and non porous construction substrates. For weather sealing of curtain walling, building facades and expansion joints.


  • Low Odour &


20-30 minutes working time. ISO 11600-25LM, ISO specification 9047 Class 50%.
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Safety Data Sheet
Additional Information
Technical Specification
  • Brand : Dow Corning
  • Sealant Adhesive Volume : 310 ml
  • Product Type : Weatherproof Silicone Sealant
  • Model Name : 791
  • Volume : 310 ml
  • Colour : Anthracite
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
  • CE Standard (Tested to EN...) : ISO 11600-25LM, ISO specification 9047 Class 50%.
Product Contents
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

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€7.35 Incl. 23% VAT

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Dow Corning 791 Weatherproof Silicone Sealant Anthracite 310ml is rated 4.0 out of 5 by 12.
Rated 5 out of 5 by from Excellent product Very adhesive quality. Colour correct. Would use again
Date published: 2018-06-13
Rated 3 out of 5 by from Good colour match I am changing the colour of my windows to Valspar "Carriage Wheel", and therefore need to replace the sealant. This product is a perfect colour match, but it is very expensive for a tube of sealant.
Date published: 2018-06-10
Rated 4 out of 5 by from Great silicone I've used this product a lot recently, it's great for making weather tight seals between anything really. I will use it again. It's a bit expensive, that's the only thing that faults it. But I suppose you get what you pay for.
Date published: 2017-10-16
Rated 5 out of 5 by from Easy Does what it says on the tin. Can't ask more than that.
Date published: 2017-09-19
Rated 4 out of 5 by from Go-to sealant Easy to apply and a great colour, ( anthracite) this is my go-to sealant in its various colours. It goes on easily and as far as I can tell so far, lasts well. Gave it a 4 on reliability because I need to check again after it's been in a few years!
Date published: 2017-06-29
Rated 1 out of 5 by from stays wet I don't know if I've got a bad tube, but this is the only colour of silicone sealant I've used that is not elastic and does not set. It applies fine and looks fine, but stays in the same state that it came out of the tube for weeks afterwards, finally going a little stiffer after months, but still very soft and pliable with no elasticity. More like a bituminous mastic than a sealant. Very weak & messy as a result.
Date published: 2017-04-08
Rated 5 out of 5 by from Leaking Roof I bought this to help repair a small portion of my roof that was leaking. Its self explanatory, easy to use and time will tell if its effective.
Date published: 2016-11-24
Date published: 2015-03-20
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