Dowsil 781 Black Silicone Sealant, 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.