Gap Filler Expanding Foam Sealant 2 Pack 12 Oz Each Can DIY Friendly Spray Polyurethane Insulation for Windows and Doors Waterproof Self Expanding Foam With Straw Seals Cracks and Gaps Weatherproofs Your Home

2-Pack 12oz Gap Filler Foam Sealant for Windows & Doors
✔️ Self-expanding polyurethane foam with straw for easy application

This is a single-component, moisture-curing polyurethane spray foam sealant designed to expand and fill gaps around windows, doors, penetrations, pipes, and cavities. It creates a waterproof seal and can be trimmed or painted after curing, enabling clean, professional-looking weatherproofing in DIY projects.

✅ One-component moisture-curing polyurethane foam with straw adapter
✅ Expands to seal large gaps around windows, doors, and penetrations
✅ Cures in 3-5 minutes; full cure in 24 hours; trimable and paintable
✅ Waterproof and paint-ready; adheres to most building materials (avoid polyethylene, teflon, and silicone)
✅ UL certified safety for reliable home insulation results

💡 What is gap filler expanding foam used for in home insulation? This handy sealant blocks drafts and seals cracks around openings.

- Handy for blocking drafts around windows, doors, outlets, and pipes - Seals irregular gaps by expanding to fit spaces - Quick cure times allow fast DIY weatherproofing projects - UL certified safety offers confidence for home use