Dowsil 781 Black Silicone Sealant, 310ml
High-performance Dowsil 781 black silicone sealant for glazing, weather sealing & general use. WRAS approved, 310ml.
The Dowsil 781 Black Silicone Sealant is a high-performance, one-part silicone sealant offering exceptional adhesion to a variety of non-porous surfaces, including glass, aluminium, painted surfaces, and composite boards. Its advanced formulation ensures excellent resistance to ageing, shrinkage, cracking, and discolouring, making it a durable choice for both interior and exterior applications.
This sealant is particularly suitable for glazing applications and weather sealing of sheet cladding, as well as general internal sealing tasks. With a tack-free time of one hour and a working time of 5-10 minutes, it provides ample flexibility during application. The skin-over time is just 14 minutes, allowing for efficient project progression.
Key Features
- WRAS approved for contact with potable water once cured
- Conforms to ISO 11600-F&G-20LM standards
- Excellent adhesion to non-porous surfaces
- Resistant to ageing, shrinkage, cracking, and discolouring
- Versatile for glazing, weather sealing, and general sealing applications
Ideal for professionals and DIY enthusiasts alike, the Dowsil 781 Silicone Sealant ensures reliable performance and long-lasting results.
Need larger quantities? Need additional quantities? Get in touch and we'll arrange it for you.
- Glazing applications
- Weather sealing of sheet cladding
- General internal sealing applications
- Projects requiring WRAS approval
- Material: Silicone
- Volume: 310ml
- Working Time: 5-10 minutes
- Tack-Free Time: 1 hour
- Skin-Over Time: 14 minutes
- Standards: Conforms to ISO 11600-F&G-20LM
- WRAS Approved: For use with potable water once cured
- Weight: 374g
Documents
Always follow local regulations and product guidance.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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