Dowsil 791 Weatherproofing Sealant

Dowsil™ 791 Silicone Weatherproofing Sealant is a one-part, neutral-curing, low-modulus silicone sealant engineered to deliver exceptional weatherproofing performance. Its neutral cure system ensures low odour and ease of use, making it ideal for various construction and glazing applications. This sealant offers excellent resistance to ozone, UV radiation, and extreme temperatures, ensuring long-lasting protection against the elements. Its impressive joint movement capability of ±50% makes it a reliable choice for expansion, connection, perimeter, and other movement joints.

Key Features:

• Ideal for expansion, connection, perimeter, and other movement joints
• Neutral cure formula for low odour and easy application
• Excellent resistance to ozone, UV radiation, and temperature extremes
• Joint movement capability of ±50%
• Conforms to ISO 11600-F&G-25LM
• Meets various technical specifications and standards (SNJF, DIN, EN)

Uses:

• General glazing and weather sealing in curtain walls and building façades
• Expansion joints
• Connection joints
• Perimeter joints
• Other movement joints

Benefits:

• Provides a long-lasting, weathertight seal
• Accommodates joint movement without cracking or losing adhesion
• Resists degradation from environmental factors
• Easy to apply and tool
• Low odour for improved working conditions

Additional Information:

Clean Up:

To clean excess sealant from tools and non-porous surfaces while in an uncured state, use Dowsil™ R40 Universal Cleaner.

Usable Life and Storage:

Dowsil™ 791 Silicone Weatherproofing Sealant should be stored in cool and dry conditions. When stored at or below 30°C in the original unopened containers, it has a usable life of 12 months from the date of production.

Additional Product Downloads:

• Download TDS
• Download SDS