PROSOCO VB Fluid-Applied Air & Water-Resistive Barrier and Water Vapor Barrier

R-GUARD VB (VAPOR BARRIER) FLUID-APPLIED AIR, WATER, AND VAPOR BARRIER FOR MASONRY AND WALL ASSEMBLIES R-Guard VB is a high-performance, fluid-applied air and water-resistive barrier and vapor barrier designed to prevent air and moisture infiltration in cavity wall and masonry veneer construction, as well as stucco, EIFS, and most other exterior wall assemblies. KEY FEATURES Dual-purpose performance – Serves as both a vapor barrier and air/water-resistive barrier No leakage under pressure – Maintains seal between sheathing and membrane under wind and air loads Construction-ready durability – UV- and weather-resistant for up to 6 months of exposure Easy application – Spray-grade, fast-drying formula reduces labor time and installation complexity Broad compatibility – Adheres to CMU, concrete, sheathing, and most standard wall surfaces TECHNICAL DATA Form: Viscous liquid, mild odor, light green color pH: 7.5–10.0 VOC Content: 45 g/L Coverage: Gypsum Board/Plywood: 4