A one-part, butyl-based, high-viscosity sealant.
What’s GAF EverGuard 8008 WaterBlock Mastic?
GAF’s WaterBlock Mastic is a one-part butyl-based high-viscosity sealant.
Why GAF EverGuard 8008 WaterBlock Mastic?
A one-part, butyl-based high-viscosity sealant, suitable for sealing between flashing membrane and substrate surfaces, behind exposed termination bars, and between roofing membrane and drain flanges.
FEATURES AND BENEFITS: