Air-Bloc® 31MR

Liquid Emulsion Vapor Permeable Air Barrier Membrane

Air-Bloc<sup>®</sup> 31MR

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.

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

Complete the system

Literature

  • Installation and Technical Literature

    Air-Bloc® 31MR Data Sheet Click to download  

    Air-Bloc® 31MR SDS Sheet Click to download  

    Air-Bloc® 31MR Health Product Declaration Click to download  

  • Tech-Talks

    NFPA 285 Assemblies Click to download

    Fastener penetrations through air barrier membranes Click to download

    Henry® Air Barrier Assemblies Meet ASTM E2357 Click to download

    FAQ about vapor permeable air barriers Click to download

    Conversion Charts Click to download

    Coatings and Sealants Click to download

  • Specifications

    Air-Bloc® 31MR Guide Spec Click to download  

  • Architectural Details

    AB-H116 Expansion joint detail – Brick veneer/metal stud wall pdf cad

    AB-H117 Plan details – Brick veneer/steel stud/CMU wall pdf cad

    AB-H118 Deflection joint detail – Brick veneer/steel stud pdf cad

    AB-H119 Shelf angle detail – Brick veneer/steel stud wall pdf cad

    AB-H122 Rebate window detail – Stucco/steel stud pdf cad

    AB-H123A Sequence detail – Steel stud/rebate window installation pdf cad

    AB-H123B Sequence detail – Steel stud/rebate window installation pdf cad

    AB-H124A Sequence detail – Steel stud/flanged window installation pdf cad

    AB-H124B Sequence detail – Steel stud/flanged window installation pdf cad

    AB-H128 Joint treatment detail – Exterior gypsum sheathing pdf cad

    AB-H129 Corner details – Exterior sheathing pdf cad

    AB-H130 Penetration detail – Horizontal pipe pdf cad

    AB-H212 Wall/foundation detail – Brick veneer/wood frame construction pdf cad

  • LEED Declarations

    Air-Bloc® 31 LEED Declarations Click to download