MasterSeal AWB 661I - Air and Water-Resistive Barrier Membrane - meeting Class A requirements of ASTM E84 Surface Burning test

MasterSeal AWB 661I

Air and Water-Resistive Barrier Membrane - meeting Class A requirements of ASTM E84 Surface Burning test

MasterSeal AWB 661I is a one-component liquid applied air/water-resistive barrier that can also function as a vapor retarder. It is based on Silica Fortified RubberTM chemistry. This waterproof, resilient membrane may be spray-, roller-, or brush- applied directly to approved above grade wall substrates. It provides excellent secondary moisture protection behind most wall claddings including brick, siding, metal panels, and EIFS.