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

    Meeting 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