Prosoco R-Guard Air Dam Sealant 10 oz.

Prosoco’s R-Guard Air Dam Sealant delivers a high-performance air and weather barrier for windows, doors and wall openings. Formulated for both interior and exterior use, this 10 oz. cartridge seals out moisture, air infiltration and energy loss—reducing heating and cooling costs. It guns and tools easily in all climates, bonds tenaciously to common building materials and cures to a flexible, weather-tight seal without priming.

Whether you’re retrofitting a single window or installing new doors on a commercial façade, R-Guard Air Dam provides long-lasting protection. Its advanced chemistry is solvent-free and isocyanate-free, resists staining and yellowing, and meets leading sustainability standards.

Key Features

• 10 oz. cartridge fits standard caulking guns for quick application
• Bonds and cures on damp or wet substrates without primer
• Creates a durable, flexible air‐ and weather‐tight seal
• Adheres to vinyl, wood, metal (including painted surfaces), glass and masonry
• No shrinkage, no staining, non-yellowing finish
• Solvent-free, isocyanate-free formula
• Certified for LEED, Living Building Challenge and SCS Indoor Advantage Gold

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.