R-Guard Spray Wrap MVP

PROSOCO R-Guard Spray Wrap MVP is a fluid-applied air and water-resistive barrier that cures into a vapor-permeable, water-resistant membrane behind cladding.

What it does

It sprays on as a batter-like liquid and cures into a rubberless, durable, vapor-permeable barrier that lets trapped wall-cavity moisture escape while blocking water intrusion and reducing air leakage. Designed for vertical, above-grade applications.

When and where to use it

• Cavity wall and masonry veneer construction
• Stucco assemblies and EIFS
• Above-grade wall systems on exterior gypsum, plywood, OSB, CMU, and cast concrete
• Over substrates prepared with Joint & Seam Filler or FastFlash

Key benefits

• Vapor permeable — drying capacity for trapped wall moisture
• Reduces air leakage and energy loss
• Adheres to most common building substrates
• ≤18 g/L VOC, ICC-ES approved, NFPA 285 compliant
• Build America, Buy America Act certified, LEED verified, LBC Red List Free
• Can be exposed to weather for up to 12 months

Format

5-gallon containers; 2-year shelf life. Coverage 50–100 sq ft/gal on gypsum/OSB/plywood, 30–60 sq ft/gal on CMU.