MasterSeal AWB 660 I air-/water-resistive barrier and Class 1 vapor retarder

(Formerly Enershield I)

MasterSeal AWB 660 I description

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 RubberTM 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.

Recommended uses of MasterSeal AWB 660 I:

As an air/water-resistive barrier over the following exterior wall substrates:

PermaBase® brand cement board or other ASTM C1325 Type A Exterior approved cement boards.

ASTM C1177 type sheathings, including DensGlass® exterior sheathing, eXP® sheathing, GlasRoc® sheathing, Securock® glass-mat sheathing, Weather Defense® Platinum sheathing, GreenGlass® sheathing.

Gypsum sheathing (ASTM C79/C1396); new and untreated Exposure 1 or exterior plywood sheathing (Grade C-D or better); untreated exposure 1 OSB; poured concrete/unit masonry; poured concrete/unit masonry treated with MasterSeal AWB 600 FL block filler.

MasterSeal AWB 660 I provides excellent secondary moisture protection behind most wall claddings including brick, siding, metal panels, EIFS and stucco. A slipsheet is required for stucco claddings.

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

US / Canada support literature

Data Guide

Data Guide (French)

Data Guide (Spanish)

Brochure - MasterSeal AWB Fire Codes

Brochure - Silica Fortified MasterSeal AWB

LEED Letter

LEED v4 Letter

Details - Application on Masonry Construction

Application Guidelines for Use on Masonry Construction

Details - Application on Framed Construction

Application Guidelines for Use on Framed Construction

Application Guidelines for Spray Application

Application Guidelines for Fastener Self-Sealing

Details - Liquid Flashing Membrane

Specifications

NFPA 285 Reports for MasterSeal AWBs - Summaries of various wall assemblies that meet the requirements of NFPA 285

MasterSeal AWB / extruded polystyrene / expanded polystyrene / Neopor GPS Plus rigid insulation board / non-combustible cladding

MasterSeal AWB / Hunter Xci Class A polyisocyanurate / non-combustible cladding

MasterSeal AWB / BASF Wall Systems EIFS

MasterSeal AWB / Atlas EnergyShield Pro or EnergyShield Pro 2 / metal composite material

MasterSeal AWB / Atlas EnergyShield Pro or EnergyShield Pro 2 / various veneers

MasterSeal AWB / various insulations / ASTM C929 Stucco (3/4")

MasterSeal AWB / non-combustible veneers

MasterSeal AWB / Hunter Xci Ply / various claddings

MasterSeal AWB / Hunter Polyisocyanurate / MCM/ACM

MasterSeal AWB / mineral wool insulation / non-combustible veneers or MCMs

MasterSeal AWB / various insulations / stuccobase (min 1/2" thick)

MasterSeal AWB / metal composite material (MCM)

Direct contact

Master Builders Solutions Technical Support

Construction Systems

1-800-243-6739

Safety Data Sheet (SDS)

Find all available safety data sheets for this product.

Product Certifications

Generate a free certificate of conformance for a specific BASF construction product.

Related Literature

Equipment recommendations for application of MasterSeal AWB air and water-resistive barriers

pdf (131.49 Kb)

LEED v4 Letter for MasterSeal AWB 660 I

pdf (149.11 Kb)

MasterSeal AWB 660 I Guide Specifications

doc (184.50 Kb)

MasterSeal AWB 660 I LEED Letter

pdf (185.42 Kb)

MasterSeal AWB 660 I vapor and air barrier

pdf (164.62 Kb)

MasterSeal AWB Self Sealing Fastener Application

pdf (3.39 Mb)

MasterSeal AWB Spray Application Guidelines

pdf (104.38 Kb)

MasterSeal AWB on Framed Construction Details

pdf (3.64 Mb)

MasterSeal AWB on Framed Construction Guidelines

pdf (1.02 Mb)

MasterSeal AWB on Masonry Construction

pdf (2.88 Mb)

MasterSeal AWB on Masonry Construction Guidelines

pdf (1.15 Mb)

MasterSeal_AWB_Spray_Guidelines

pdf (131.49 Kb)