Dowsil™ 781 is a one-part silicone sealant, which has excellent adhesion to a wide range of non-porous surfaces, including: glass, aluminium, painted surfaces and composite boards.

It is fast curing and offers excellent resistance to ageing, shrinkage, cracking and discolouring. Suitable for glazing applications, weather sealing of sheet cladding, curtain walls, draught proofing and general internal sealing applications. It is tack-free in one hour with a working time of 5-10 minutes.

It is listed by the UK Water Regulations Advisory Scheme (WRAS) for use in contact with potable water once cured. Conforms to ISO 11600-F&G-20LM.

781 has excellent weatherability, with an application temperature range +5 to +40°C and joint movement capability +/– 20%.

Dowsil™ 781 Silicone Sealant, Clear

Delivery

We aim to dispatch all orders placed by 1pm the same day.

We offer 2 delivery services:

Standard 3-5 working day - £5.95

Next Working Day - £7.99

Please note that some items on our site do come direct from the supplier and may not be available on Next Day Delivery.

Collection

We offer a click and click service from our Dundee Depot.

We aim to have orders ready to collect within 24 hours. Please note that this may not be possible if the item is not held in stock and needs to come on from the supplier.