Dowsil 791 Silicone Sealant White 310ml
14-day returns on all eligible orders
Contact us within 14 days of receiving your order to request a return.
Shipping information
Orders are picked, packed and dispatched from our Northampton warehouse.
- Free delivery to mainland UK addresses on orders of £40 or more.
- Orders under £40, and orders to Northern Ireland, have a delivery charge, shown at checkout before you pay.
- You will get an email with your tracking number once your order has shipped.
Full details are in our Shipping Policy.
Returns & warranty
Changed your mind? You can return an online order within 14 days of receiving it. Please contact us first for return instructions, then you have 14 days to send the goods back.
- Items must be unused, complete and in their original condition, with all accessories, instructions and original packaging.
- You arrange and pay for the return postage on change-of-mind returns. We refund the price of the item plus our standard delivery charge.
- Damaged in transit? Let us know within 48 hours of delivery - photos help.
- Faulty or wrong item? Contact us before sending anything back. Faulty goods are covered by your statutory rights.
Your statutory rights are not affected. Full details are in our Refund Policy, or email onlinesales@nn4online.co.uk.
Dowsil™ 791 is a one-part neutral silicone for weather sealing.
It is used for both commercial and domestic applications, and provides excellent adhesion to most exterior substrates. It has excellent weathering characteristics, including resistance to ozone, UV radiation and temperature extremes.
It has a 20 minutes skin over time and it is tack-free in 45 minutes.
Conforms to ISO 11600-25LM and also meets ISO specification 9047 class 50.
Dowsil™ 791 Silicone Sealant, White