Sikagard AWB 665 Vapor Permeable Air/Water-Resistive Barrier 5 Gallon

This product was formerly branded under Master Builders and is a direct replacement to MBS-50499353.

Sikagard AWB 665 Vapor Permeable Air/Water-Resistive Barrier 5 Gallon

Sikagard® AWB 665 is a one-component, fluid-applied vapor permeable air/water-resistive barrier. This waterproof, resilient coating 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 and metal panels.

Recommended Uses:

For use over the following exterior wall substrates: Poured concrete/unit masonry, poured concrete/unit masonry treated with Sikagard® AWB 600 FL or Sika Thorocoat®-749 Block Filler, ASTM C1177 type sheathings, including DensGlass™ eXP™ sheathing, GlasRoc® sheathing, Securock™ glass-mat sheathing, Weather Defense™ Platinum sheathing, GreenGlass® sheathing, PermaBase™ cement-board by National Gypsum and other cement-boards (ASTM C1325 Type A Exterior), untreated Exposure I or exterior plywood sheathing (grade C-D or better), untreated Exposure I OSB, gypsum sheathing (ASTM C79/ASTM C1396), Fire resistive sheathing such as MagTec®, LP® FlameBlock®. Do not use Sikagard® AWB 665 for below-grade applications or on surfaces subject to water immersion.

Features & Benefits:

• ICC ESR-3209 Evaluation Report
• <1% of allowable air leakage per ASTM E2357 Air Leakage of Building Assemblies Test
• Meets ASTM D1970 nail sealability requirements with and without Sheathing Fabric
• Water-based, one-component, low-VOC formulation
• Nonflammable as applied. Class A Fire Rated (ASTM E84)
• Mineral oil and plasticizer free
• 180 Day UV Exposure
• 99% Drainage Efficiency per ASTM E 2273
• Meets NFPA 285 requirements when part of a tested assembly