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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Rated 5 out of 5 by from Effective and reasonably price I bought this to seal a planter and it worked perfectly, what more can I say?
Date published: 2021-06-12
Rated 5 out of 5 by from Perfect Needed it black, b n q didn't do it. Checked here. They did so Bosch bought it. Worked a treat. Perfect for the job needed to be done.
Date published: 2021-05-11
Rated 5 out of 5 by from Black silicone solvent based black silicone, not too runny like some tubes, perfect for sealing in bathrooms
Date published: 2021-05-04
Rated 5 out of 5 by from Good Ideal for outdoor use, match my colours needed, recommend
Date published: 2021-04-20
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Double glaze unit

Is this the correct sealant for fitting a double glaze unit into a frame and won’t damage the sealant between the double glaze panes.
Asked by: MrWalle
This would depend on what product the edge seal has been made from. If the edge sealant of the glazing unit is a Dowsil edge sealant by Dow then yes the Dowsil 791 is approved for use for this application and will not cause damage.
Answered by: Dow Product Support
Date published: 2021-05-17

Can this adhere to metal to brick if not can you recommend anything

Asked by: Sams45
Good morning, Dowsil 791 will stick to both brick and metal and will seal a joint between the two. If they are asking if they could 'glue' on surface to another with Dowsil 791 however then no - Dowsil 791 is a sealant rather than an adhesive. For an adhesive, they would need Geocel The WORKS Pro. I hope this helps.
Answered by: Dow Product Support
Date published: 2021-06-08

Usage for chimney cowl to cap gap?

Can this be used this to seal around a chimney cowl to the chimney cap? I understand it has a 150 degC rating which should be more than sufficient for the two storey gas flue.
Asked by: Jayb5

Can this be used on fish ponds?

Asked by: 44APB44
Hello, No, this is not marine safe and may harm aquatic life. Additionally, it's not suited for permanent submersion in water. I would recommend opting for a specific pond safe product. Thanks for using Q&A. [DG]
Answered by: DGIFF
Date published: 2020-09-30

Paintable?

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