Dow 791 Weatherproofing Silicone Sealant Black 310ml (62431)

£ 6.29INC VAT

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Dow 791 Weatherproofing Silicone Sealant Black 310ml (62431)

Low modulus silicone that gives excellent, unprimed adhesion to both porous and non-porous substrates. Suitable for weather sealing and expansion joints.

  • For Fixing, Sealing & Binding
  • Mould & Mildew-Resistant
  • Low Odour & Solvented
  • No Primer Required
  • Apply in Dry Conditions Only

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View all: Dow Weatherproof Sealants

£6.29INC VAT (£20.29/Ltr)

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Dow 791 Weatherproofing Silicone Sealant Black 310ml is rated 4.8 out of 5 by 36.
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Rated 5 out of 5 by from Seals the Butt Used on water butt for the tap, Stopped the leaks Great!
Date published: 2020-06-18
Rated 5 out of 5 by from Easy to use Easy to fill joint that had cracked. Try to avoid touching with bare hands as can take many washes to remove.
Date published: 2020-06-10
Rated 5 out of 5 by from Highly flexible water sealant I first used this silicone to fillet the joint from brick to plastic trim/fascia boards on my garage. At the time once dry it felt like it hadn't gone off properly but I needn't have worried. It's the characteristics of this type of sealant, Alot more forgiving that your ordinary cheaper branded silicone. For instance around shed glazing that expands when damp but shrinks when in summer. Clear cheap silicone lasted a few weeks before leaking in but it's been months and still no issues as yet. I'm currently using this to waterproof my solar lights around the solar panel and other nooks/holes in the plastic housing to improve reliability. Can't see there being any problems. A word of warning though, it gets EVERYWHERE when cleaning up, so glove up and have plenty of rags/wipes at the ready!
Date published: 2020-02-04
Rated 5 out of 5 by from Best sealant ive used Used this 791 black first when installing a solar water panel on roof 15 years ago, still good now. always used this since - even used as emergency repair to stick heavy broken roof tiles together and still sound after years !! my first choice was Dow 785 sealants for doing 2 bathrooms and years later still sound - way better than others i have used. Highly recommended.
Date published: 2019-12-08
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Can this be used on fish ponds?

Asked by: 44APB44

Paintable?

Is it paintable? I assume not. Thanks
Asked by: Undaunted

does this have a matt black finish

Asked by: axxpo

Splashback

Hi, just wanted to check if this low modulus sealant would be ideal for attaching a splashback in the kitchen. Thanks in advance.
Asked by: Valera

Will it seal around coach screws in metal box profile roof sheet?

My garage roof retains a little bit of water due to lack of gradient. Water gets in through a hole where the metal sheet is screwed to timbers underneath. Will this product create a water tight seal around the screw?
Asked by: Wetncold
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Specification
Brand Dow
CE Standard (Tested to EN...) ISO 11600-25LM, ISO specification 9047 Class 50%.
Colour Black
Label Info 2: Hazard Statements EUH 210 Safety data sheet available on request.EUH 208 Contains. May produce an allergic reaction.
Label Info 2: Hazard Statements EUH 210 Safety data sheet available on request.EUH 208 Contains. May produce an allergic reaction.
Label Info 3: Precautionary Statements P271 Use only outdoors or in a well-ventilated area.
Label Info 5: Hazardous Chemical Content Contains: Methyltrimethoxysilane. This product contains dodecamethylcyclohexasiloxane (D6)
Manufacturer Guarantee 1 Year Guarantee
Model Name 791
Pack Size 1
Parent Colour Black
Pieces in Pack/Case 1
Product Type Weatherproofing Silicone Sealant
Sealant/Adhesive Container Type Cartridge
Suitable Application For Fixing, Sealing & Binding
Volume 310 ml

Downloads

Safety Data Sheet (COSHH)