BASF MasterSeal AWB 660 I

MasterSeal AWB 660 I is a one component fluid-applied air/ water-resistive barrier that can also function as a Class I vapor retarder.

• Based on Silica Fortified Rubber™ chemistry, this water-resistant, resilient membrane may be spray-, roller-, or brush-applied directly to approved above grade wall substrates.
• It provides excellent secondary moisture protection behind most wall claddings including brick, siding, metal panels, EIFS and stucco.
• Features of MasterSeal AWB 660 I air/water-resistive barrier and Class 1 vapor retarder
  • Approved for projects requiring Air Barrier Association of America (ABAA) performance specifications and quality assurance
  • Meets ASTM E2357, ICC-ES AC212 and ICC-ES AC148 requirements; fully qualified as an air/water-resistive barrier and flexible flashing material
  • ICC-ESR 3310 evaluation report confirms compliance with IBC, IRC and IECC requirements
  • Safe: water-based, low VOC and non-flammable

• Benefits of MasterSeal AWB 660 I
  • As a liquid-applied, continuous membrane it eliminates seams, lap joints and staples; transmits wind load directly to the substrate
  • Silica Fortified Rubber technology offers strength, durability and self-sealing properties and require you to apply less material to achieve effective functioning
  • Can be applied at temperature at low as -4 °C (25 °F) when MasterSeal AWB 960 AC is added
  • MasterSeal AWB 660 I qualifies as both an air/water-resistive barrier and flexible flashing material because it meets ASTM E2357, ICC-ES AC212 and ICC-ES AC148 requirements
  • Applicator friendly, quick applying and fast drying; it can be spray-, roller-, trowel- or brush-applied at low wet-film thickness
  • Its textured surface allows sealants, adhesives and spray polyurethane foam to firmly bond to MasterSeal AWB 660 I