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Dow Corning 781 Acetoxy Silicone Sealant Clear 310ml (32576)

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 potable water.

  • Water-Resistant

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£5.25INC VAT (£16.94/Ltr)

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Dow Corning 781 Acetoxy Silicone Sealant Clear 310ml is rated 4.6 out of 5 by 11.
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Rated 5 out of 5 by from Perfect for my needs I chose this sealant for its inert properties as its used to seal a 6ft vivarium housing a boa constrictor. Much cheaper than some other online aquarium sealant most people use and does the job well from a well known manufacturer.
Date published: 2016-12-06
Rated 5 out of 5 by from Does the job This is my preferred sealant maybe a bitty more expensive than others but it does the job
Date published: 2016-09-08
Rated 5 out of 5 by from You won't find better I spent a lot of time researching all the forums before I purchased a sealant for my bathroom, as the previous one lastest about a year before yellowing. I replaced it all with the white variant 2 years ago and it still looks like new. I now use the White 785 and Clear 781 versions for every application and wouldn't use anything else.... It's superb! I can only rate it 4 stars for reliability as I've only been using it for 2 years but I have no doubt that it'll continue to perform perfectly and look as good as new :)
Date published: 2015-07-07
Rated 5 out of 5 by from Sili sealer Slap it in your gun, aim it true and squeeze it hard for some serious H20 repelling magic.
Date published: 2015-03-28
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Can I use this product to seal in high temp water for inside an lpg water boiler?

Asked by: Anonymous
Dow Corning 781 can be used in a gasket application in water systems. Dow Corning 781 has long term temperature resistance of 150°C and is approved for use in potable water gasket applications up to 85°C, however, it is worth noting that higher temperature cycling will create higher amounts of thermal movement and so joint design should be considered carefully. Substrates need to be dry when the silicone is applied and curing. To discuss you application in greater detail please feel free to contact us at technical@geocel.co.uk
Answered by: DowCorning ProductSupport
Date published: 2017-08-05

anti mould

does this product have anti mould/fungal properties? thanks
Asked by: andykg1121
Unfortunately Dow Corning 781 does not contain a fungicide. If you would like a product with similar properties to Dow Corning 781, then Dow Corning 785 may be used. DC 785 comes in some different colours and cannot be used in potable water applications, however, it does contain a fungicide.
Answered by: DowCorning ProductSupport
Date published: 2017-07-23

Food safe

Is this product safe to use if in constant contact with food??
Asked by: Mocngog
Is this product safe to use if in constant contact with food?? This product is WRAS approved for potable water contact, but unfortunately it does not have any approvals for direct food contact. From our range of products only the Dow Corning 786 is approved for direct continuous food contact.
Answered by: DowCorning ProductSupport
Date published: 2017-07-23

is this ok for oven door glue?

I googled oven door glue, and this came up. is it heatproof?
Asked by: DaiC
Dow Corning 781 is not intended to go up to the temperatures which ovens can go up to. I would suggest Geocel Trade Mate Plumber Flue instead. Geocel Plumber Flue is an acetoxy silicone which can withstand long term temperatures of up to 250°C.
Answered by: DowCorning ProductSupport
Date published: 2017-07-23

Can you tell me if this product is safe to use in aquariums for fish

Asked by: Smokingvinnie
I have been looking for a sealant for my new pond with windows installed in it, I checked the data sheet for this product and it states 12.1 Ecotoxicity effects No adverse effects on aquatic organisms are predicted. So I am going to use it on mine.
Answered by: BuildITnow
Date published: 2017-06-16
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Specification
Brand Dow Corning
Colour Clear
Manufacturer Guarantee 1 Year Guarantee
Model Name 781
Pack Size 1
Pieces in Pack/Case 1
Product Type Acetoxy Silicone Sealant
Sealant Adhesive Volume 310 ml
Volume 310 ml
Water Resistant Water-Resistant

ISO 11600-G-20HM.

Downloads

Safety Data Sheet (COSHH)