EverGuard® Water‑Block Mastic Specs
EverGuard® Water‑Block Mastic Docs
EverGuard® Water‑Block Mastic Videos
Why EverGuard® Water‑Block 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.

See how this product can help you meet your environmental goals. View sustainability information here.
Where to buy
Find a commercial distributor near you.