The Air-Bloc 31MR is a liquid applied, elastomeric membrane designed to provide a permeable air & water barrier when applied to above-grade wall assemblies. Liquid-applied with a trowel or spray, Henry's Air-Bloc 31MR is a one-component, rubberized membrane that provides an air barrier when applied to a range of construction surfaces. Air-Bloc 31MR cures to a tough, monolithic rubber-like membrane.
It is resists air leakage and water penetration. Air-Bloc® 31MR combines the proven performance of Air-Bloc® 31MR with the addition of Henry antimicrobial technology to create an integral mold resistant membrane.
- Retains flexibility over a wide temperature range and bridges cracks
- Adheres to most construction surfaces, including block, concrete, stone, wood and metal
- Can be applied to damp concrete
- Contains no organic solvents