Dow 781 Acetoxy Silicone Sealant White 310ml (45959)

£ 5.49INC VAT

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Dow 781 Acetoxy Silicone Sealant White 310ml (45959)

Ready-to-use, Single-component, acetoxy silicone with fast cure and good weathering characteristics. Suitable for use on aluminium, glass, formica, and most other non-porous substrates. Safe to use in contact with drinking water.

  • Water-Resistant
  • Mould-Resistant
  • Cannot be Painted

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View all: Dow General Purpose Sealants

£5.49INC VAT (£17.71/Ltr)

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Dow 781 Acetoxy Silicone Sealant White 310ml is rated 4.7 out of 5 by 16.
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Rated 5 out of 5 by from Works perfectly as described Great silicone, used in a bathroom project, this was easy to apply with a good finish.
Date published: 2020-05-20
Rated 5 out of 5 by from Great product Great mastic. Only used once but it flowed nicely and tooled it up easily for a great finish. Would highly recommend it.
Date published: 2020-05-12
Rated 5 out of 5 by from Can't go wrong with Dow I wouldn't use any other caulk or sealant. Dow stuff is so smooth and consistent. No air bubbles, fantastic adhesion, stays white long term. A+++
Date published: 2020-05-11
Rated 5 out of 5 by from GTidman These Dow silicones are the very best that you can buy they contain the acetoxy ingredient that a lot of the new ones don’t have any more. They will never let you down.
Date published: 2020-03-16
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How long does it take to dry and can I paint this?

Asked by: AbsK

Can I use this for fish tanks or is it toxic for fish?

Urgent
Asked by: Mmrt

Metal roofing sheets

Hello, can I use this to seal gaps in corrugated metal roofing sheets on south facing roof? We have water ingress and conscious that the roof sheets could get extremely hot in summer and very cold in winter...
Asked by: Bovrilelles
I would recommend Dowsil 791, a neutral-cure silicone with good weathering resistance. It will cure to form a flexible and durable water-tight seal. This product would also be able to accomodate the temperature variations you have described.
Answered by: Dow Product Support
Date published: 2019-09-09

Can I use this for covering screws nails on socket board?

Asked by: Shwe
For best adhesion to screws and PVC we would recommend using the Dow 791 or Dow 799 silicone.
Answered by: Dow Product Support
Date published: 2019-03-23

is DOW 781 food safe?

Asked by: Martin781
Whilst we do not expect any problems with cured Dow 781 being in food preparation areas, I am afraid It has not undergone any testing for direct food contact.
Answered by: Dow Product Support
Date published: 2019-02-03
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Specification
Brand Dow
CE Standard (Tested to EN...) ISO 11600-G-20HM.
Colour White
Label Info 2: Hazard Statements EUH 210 Safety data sheet available on request.
Label Info 2: Hazard Statements EUH 210 Safety data sheet available on request.
Label Info 5: Hazardous Chemical Content N/A
Manufacturer Guarantee 1 Year Guarantee
Model Name 781
Pack Size 1
Parent Colour White
Pieces in Pack/Case 1
Product Type Acetoxy Silicone Sealant
Resistant Type Mould-Resistant
Sealant/Adhesive Container Type Cartridge
Volume 310 ml
Water Resistant Water-Resistant

Downloads

Safety Data Sheet (COSHH)