Sikagard® AWB 660 I

Sikagard® AWB 660 I is a one-component, vapor-permeable air and water-resistive barrier (AWB) engineered for above-grade exterior wall applications. Designed for seamless waterproofing, it offers exceptional adhesion and durability, ensuring superior protection against air infiltration, moisture penetration, and environmental exposure.

This fluid-applied, elastomeric coating is compatible with a wide range of substrates, including poured concrete, CMU, exterior gypsum sheathing, cement board, OSB, plywood, and stucco. Low-VOC, non-flammable, and highly flexible, Sikagard® AWB 660 I provides outstanding crack-bridging properties and long-term performance, making it an ideal air barrier solution for energy-efficient building envelopes.

Key Benefits of Sikagard® AWB 660 I:

• Vapor-permeable and air-tight for superior moisture management
• Seamless, fluid-applied barrier—eliminates gaps and leaks
• Excellent adhesion to a variety of exterior wall substrates
• Resists wind-driven rain and air infiltration
• Tough, abrasion-resistant membrane for long-term durability
• Low-VOC, non-flammable, and environmentally compliant
• High flexibility and crack-bridging capability
• Ideal for commercial and residential wall assemblies

Common Applications:

• Building envelopes for commercial and residential structures
• Air and moisture protection for exterior wall assemblies
• Weatherproofing for poured concrete, CMU, sheathing, and wood
• Compatible with EIFS, stucco, and cladding systems
• Projects requiring a high-performance air barrier

💡 Available in 5-gallon (18.9 L) pails, with a 2-year shelf life when stored properly.