PENOSIL Weatherproof Butyl Mastic is a premium-grade sealant designed for a wide range of indoor and outdoor applications. Its high-performance formulation ensures superior adhesion and flexibility, providing a durable seal that withstands various weather conditions.

Key Features:

• Weatherproof Seal: Offers excellent protection against moisture and weather elements, making it suitable for both exterior and interior applications.
• Versatile Application: Ideal for sealing gaps and joints in roofs, windows, doors, and other building elements, ensuring a reliable barrier against air and water ingress.
• Durable and Flexible: Remains flexible over time, accommodating building movements and temperature fluctuations without cracking or breaking down.
• Easy to Apply: Available in a user-friendly cartridge format for convenient application.
• Color: Typically available in black, providing a discreet finish for most applications.

This butyl mastic is perfect for construction and maintenance tasks, delivering long-lasting performance and protection against the elements.