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

    Henry® Living Building Challenge Red List Click to download

  • Specifications

    Air-Bloc® 31MR Guide Spec Click to download  

  • Architectural Details

    AB31MR-1A Wall Foundation Slab Below Grade pdf cad

    AB31MR-1B Wall Foundation Slab on Grade pdf cad

    AB31MR-1C Wall Foundation No Brick Ledge pdf cad

    AB31MR-2A Pipe Penetration 1/2" Wide Gap Maximum pdf cad

    AB31MR-2B Pipe Penetration 3/4" Wide Gap Maximum pdf cad

    AB31MR-3A-1 Inside and Outside Corners pdf cad

    AB31MR-3A-2 Inside and Outside Corners pdf cad

    AB31MR-3B Inside and Outside Corners pdf cad

    AB31MR-3C Typical Soffit pdf cad

    AB31MR-4A Substrate Transition pdf cad

    AB31MR-4B Substrate Transition pdf cad

    AB31MR-4C Substrate Transition pdf cad

    AB31MR-5A Thru-Wall Flashing pdf cad

    AB31MR-6A-A Flanged Window Section Method A pdf cad

    AB31MR-6A-C Flanged Window Sequence Installation Method A pdf cad

    AB31MR-6A1-A Flanged Window Section Method A1 pdf cad

    AB31MR-6A1-C Flanged Window Sequence Installation Method A1 pdf cad

    AB31MR-6B-A Non-Flanged Window Section Method B pdf cad

    AB31MR-6B-C Non-Flanged Window Sequence Installation Method B pdf cad

    AB31MR-6B1-A Non Flanged Window Section Method B1 pdf cad

    AB31MR-6B1-C Non-Flanged Window Sequence Installation Method B1 pdf cad

    AB31MR-6C Door Frame Section pdf cad

    AB31MR-7A1 Revsere Lap pdf cad

    AB31MR-8A Construction Joints 1/2" Gap Maximum pdf cad

    AB31MR-8B1 Construction Joints 1" Gap Maximum pdf cad

    AB31MR-8C1 Construction Joints 2" Gap Maximum pdf cad

    AB31MR-8DA Deflection Joint pdf cad

    AB31MR-8E Cracks 1/2" Gap Maximum pdf cad

    AB31MR-9A Roofing Wrapping Parapet pdf cad

    AB31MR-9B Air Barrier Transition at Parapet pdf cad

    AB31MR-TID3A Air-Bloc 31MR transition with Pumadeq System pdf cad

  • LEED Declarations

    Air-Bloc® 31 LEED Declarations Click to download