Stanley F905 Gaps & Cracks Spray Foam Low-Expansion Polyurethane Foam with Straw for Indoor & Outdoor Sealing Stanley F905 is a one-component expanding spray foam sealant that delivers high-performance gap filling in a convenient 12 Oz. can. Designed for use with the included straw applicator, it easily fills cracks, wall penetrations, and cavities around windows, doors, pipes, and more. This low-expansion polyurethane foam cures quickly, forming a waterproof and airtight seal. Suitable for multiple surfaces including wood, concrete, metal, and drywall, it adheres securely to reduce drafts and improve energy efficiency in both residential and commercial environments. Tack-free in 73 minutes and fully cuttable within 40 minutes, Stanley F905 provides a finish that is easily sandable and paintable for seamless results. Apply between 41F and 86F. Store upright to maintain performance. Straw-dispensed spray foam for quick DIY application Excellent thermal & acoustic insulation properties Closed-cell polyurethane formula Safe for indoor and outdoor use No ozone-depleting propellants VOC content <2 g/L | UL 723 Certified

Key Features:

• VERSATILE EXPANDING FOAM SPRAY: Stanley F905 is a polyurethane foam formulated to fill and seal gaps, cracks, and cavities up to 3 inches wide. Designed for DIYers and pros alike, it’s ideal for use around windows, doors, pipes, and wall penetrations.
• WATERPROOF & WEATHER-READY: This waterproof insulation sealant forms a durable barrier against air and moisture. Reliable for both indoor and outdoor use, it enhances thermal insulation and prevents energy loss.
• PRECISE APPLICATION WITH STRAW DISPENSER: Includes an easy-to-use straw applicator for targeted use in tight spaces. The low expansion spray foam ensures controlled fill without overexpansion or frame distortion.
• MULTI-SURFACE ADHESION: Bonds to concrete, wood, drywall, and more. Ideal as a gap filler foam, hole filler spray, or foam sealant for insulation and repair jobs.
• UL Certified Safety: This product is UL certified, meeting the highest standards of safety and quality. Designed for your peace of mind.