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Air-Bloc® 21

Air and Vapor Barrier and Insulation Adhesive

Product Description
Installation and
Technical Literature
Specs and Details

 

Air Barrier Brochure

Commercial Air Barrier Systems Brochure

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Air-Bloc® 21 is a trowel consistency, solvent-type, synthetic rubber-based insulation adhesive formulated for easy application on a range of construction surfaces.

Air-Bloc® 21 is designed to provide an effective air and vapor barrier when used as a full bed adhesive in conjunction with rigid foam or semi-rigid paper-faced insulation.  Also available as a fire-resistive air and vapor barrier, Air-Bloc® 21FR is used as a full bed adhesive in conjunction with rigid foam or semi-rigid paper-faced insulation.

Another form of Air-Bloc® 21, Air-Bloc®21S is a spray consistent, solvent-type, synthetic rubber-based insulation adhesive formulated for easy application on a range of wall surfaces.

Features

  • Trowel-applied at temperatures as low as 10ºF (Air-Bloc® 21 and 21FR); Spray-applied at low temperatures on masonry, concrete, drywall and wood (Air-Bloc® 21S)
  • Spreads smoothly on many surfaces, including masonry, concrete, gypsum board and wood
  • Seals around projections such as brick ties
  • Adheres to most types of rigid insulation
  • Cures to a flexible film that resists air leakage

Packaging

  • Air-Bloc® 21 and 21FR – Available in 5-gallon pails
  • Air-Bloc® 21S – Available in 5-gallon pails or 55-gallon drums

 

Air Barrier Brochure

Commercial Air Barrier Systems Brochure

Download PDF   

 

Data Sheets

Air-Bloc® 21 Data Sheets Download PDF      
Air-Bloc® 21FR Data Sheets Download PDF      
Air-Bloc® 21SG Data Sheets Download PDF      
 

SDS Sheets

Air-Bloc® 21 SDS Sheet Download PDF      
Air-Bloc® 21FR SDS Sheet Download PDF      
Air-Bloc® 21SG SDS Sheet Download PDF      
 

Tech Talks

Dens Glass and Membranes – Bakor Membranes, Dens Glass Gold and Dens-Deck Download PDF      
Conversion Charts Download PDF      
Coatings and Sealants Download PDF      
         

Health Product Declaration

Air-Bloc® 21 Health Product Declaration Download PDF      
Air-Bloc® 21FR Health Product Declaration Download PDF      
Air-Bloc® 21S Health Product Declaration Download PDF      
         

 

Air Barrier Brochure

Commercial Air Barrier Systems Brochure

Download PDF   

 

Specifications

Air-Bloc® 21 Spec Sheet Download Word File      
Fluid Applied Membrane Air Barriers (Includes Vapour Permeable Air-Bloc® 06, 21 and 32MR Download DOC      
 

Architectural Details

AB-11B96 - Window Details - Air-Bloc® 06, 21, 21FR, 21S, or 32 - Window 'A' - Brick Veneer/CMU Download PDF   Download DWG  
AB-12B96 - Window Details - Air-Bloc® 06, 21, 21FR, 21S, or 32 - Window 'B' - Brick Veneer/CMU Download PDF   Download DWG  
AB-15B96 - Plan Details - Control and Expansion Joints - Air-Bloc® 06, 21, 21FR, 21S, or 32 - Brick Veneer/CMU Download PDF   Download DWG  
AB-16B96 - Plan Details - Air-Bloc® 06, 21, 21FR, 21S, or 32 - Brick Veneer/Steel Stud/CMU Download PDF   Download DWG  
AB-1B96 - Parapet Details - Air-Bloc® 06, 21, 21FR, 21S or 32 - Brick Veneer/Steel Stud Download PDF   Download DWG  
AB-2B96 - Parapet Details - Air-Bloc® 06, 21, 21FR, 21S, or 32 - Brick Veneer/CMU Download PDF   Download DWG  
AB-5B96 - Shelf Angle Details - Air-Bloc® 06, 21, 21FR, 21S, or 32 - Brick Veneer/Steel Stud Download PDF   Download DWG  
AB-6B96 - Shelf Angle Details - Air-Bloc® 06, 21, 21FR, 21S, or 32 - Brick Veneer/CMU Download PDF   Download DWG  
AB-9B96 - Foundation Wall Details - Air-Bloc® 06, 21, 21FR, 21S, or 32 - Brick Veneer/CMU Download PDF   Download DWG