Henry Air-Bloc 31MR
Liquid Emulsion Vapor Permeable Air Barrier Membrane
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.
- 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
- Integral mold resistant formulation as per ASTM D5990