Dowsil
Dowsil 791 Silicone Sealant Grey 310ml 4024909/C05
Model 4024909/C05
Best price
Lowest we’ve seenWhere to buy
| Retailer | Price | Availability | Visit |
|---|---|---|---|
| Cheapestchecked 23 hours ago | £10.57 | In stock | Visit Blueperry agriculture (UK) (opens in a new tab) |
 retailer's price from 16 Jul 2026 | £12.81 | In stock | Visit Blueperry Tool & Builders Merchants (UK) (opens in a new tab) |
 checked within the hour | £13.95£14.69 | In stock | Visit Tooled Up (opens in a new tab) |
Prices exclude delivery. We may earn a commission if you buy through these links, which never affects the ranking above — it is always cheapest first.
Price history
Full price historyThis is the lowest price we have recorded. If you were waiting for a drop, this is it.
About this product
Dowsil 791 is a one-part neutral cure silicone sealant designed for weather sealing on both commercial and domestic buildings. In grey, it suits concrete, grey UPVC, aluminium and other modern building materials, giving a neat, integrated finish on exterior work.
It offers strong adhesion to most exterior substrates and good resistance to ozone, UV radiation and extremes of temperature, making it suited to long-term outdoor use. The sealant skins over in around 20 minutes and is tack-free within 45 minutes, allowing reasonably quick working. It conforms to ISO 11600-25LM and meets ISO 9047 class 50. Supplied as a 310ml cartridge, compatible with standard sealant guns.
Features and Benefits
- :
- Grey colour suits most modern building materials
- 310ml cartridge compatible with standard sealant guns
- Quick 20-minute skin over time for efficient working
- Conforms to ISO 11600-25LM and ISO 9047 class 50
- Superior weathering characteristics for exterior applications Specifications: Colour: Grey Size (ml): 310
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