
Henry CompanyAir-Bloc® 21Air and Vapor Barrier
- Human Health, Circular Economy
- 07 26 00 Vapor Retarders
- Air Impermeable (≤0.02 cfm/ft² @ 1.57 psf)
- Chemical Resistant, Vapor Permeable
- Fluid Spray Applied or Troweled
- CMU / Masonry, Concrete, Gypsum Sheathing, Mineral Wool Insulation, Plywood
- Vapor Retarder (Class I)
- Synthetic Rubber
- Limestone, Petroleum
- HPD
Applications
Adhesives
Vapor Air & Water Barriers

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