Kraken Bond Gaps & Cracks Expanding Foam Sealant - 2x12oz High-Expansion for Windows & Doors

Kraken Bond Gaps & Cracks Expanding Foam Sealant is a single-component, moisture-curing polyurethane foam that expands to fill stubborn gaps and cracks. In a convenient 2-pack of 12-ounce cans, the two cans give you flexibility to tackle multiple windows, doors, or large openings with confidence. The included straw adapter enables precise, low-mess application, so you can reach tight gaps without overspray.

Quality you can trust is built into Kraken Bond: UL certification marks rigorous safety and performance standards, giving you a dependable option for sealing around conditioned spaces. The foam bonds and expands in place, providing a durable barrier that resists air leakage when cured. It is designed to perform across varying environments, making it suitable for both interior and exterior projects.

Optimal use for best results

• Best performance when the can is around 68°F prior to use; warm-up or acclimate in cooler weather
• Effective between 41°F and 86°F; if conditions are colder, bring the cans to room temperature and allow them to adjust before use

Versatile applications

• Fill gaps around window frames and door jambs to improve energy efficiency
• Seal large openings, cavities, electrical outlets, water pipes, and wall penetrations
• Ideal for both new installations and retrofit work where a high-yield filler is needed

Safe, practical usage and cleanup

• Wear protective gloves, glasses, and appropriate clothing during application
• Clean uncured material with Kraken Bond Cleaner for cleanup and maintenance (sold separately)

Designed as a practical, high-yield solution for gap filling, Kraken Bond Gaps & Cracks Foam Sealant brings a straightforward approach to insulating and sealing with a two-pack setup. While results depend on proper technique and conditions, the product is positioned to help you address common draft points with a reliable, controlled spray.