Henry Air-Bloc 33MR is a UV and fire-resistant, one-component, elastomeric membrane that provides an air barrier on a range of construction surfaces. Liquid-applied with a trowel or spray, Air-Bloc 33MR cures to a tough, monolithic rubber-like membrane that resists air leakage along with UV radiation and weather.
Air-Bloc® 33MR is a fluid applied, elastomeric membrane designed to provide a permeable air and water barrier when applied to above-grade wall assemblies. It is single-component, water-based water penetration and long term weathering. Air-Bloc® 33MR combines proven performance with the addition of antimicrobial technology and proprietary fire resistance technology to create an integral mold resistant membrane that achieves compliance with stringent NFPA 285 requirements.
- Adheres to most construction surfaces, including block, concrete, stone, wood and metal
- Contains no organic solvents
- Can be applied to damp concrete