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.

Features

• 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

Packaging

• Available in 5-gallon pails or 55-gallon drums