Tpo Universal Sealant 8008

Product Overview

GAF's WaterBlock Mastic is a one-part butyl-based high-viscosity sealant that seals between flashing membrane and a substrate surface or drain flanges.

Key Features

• Suitable for: sealing between flashing membrane and substrate surface behind exposed termination bars.
• Suitable for: sealing between roofing membrane and drain flanges.

Usage & Applications

This product is ideal for use in roofing applications where a strong, durable seal is required.

Additional Information

Available in 10.5 Oz tubes.