157913 Big Gap Foam Sealant, Triple Expanding, 20 Oz.

Great Stuff Big Gap Foam Sealant is a triple-expanding foam designed to fill and seal gaps, cracks, and holes larger than half an inch. This versatile sealant creates a water-tight, airtight seal that stops drafts, reduces energy loss, and prevents pest infiltration. Use it to seal large openings where standard caulk falls short.

The product adheres to most common building materials—wood, metal, masonry, glass, and most plastics—making it suitable for both interior and exterior applications. Once cured, the rigid foam can be trimmed, sanded, painted, or stained to match your surface, giving you complete finishing flexibility. A single 20 oz. can provides coverage equivalent to approximately 30 tubes of standard caulk, delivering outstanding value for residential and professional projects alike.

Features and Benefits

• Triple Expanding Formula: Expands to fill large gaps and voids for comprehensive coverage and maximum sealing performance.
• Water-Tight & Airtight Seal: Creates a permanent weather-resistant barrier that stops drafts, reduces energy waste, and keeps out insects and moisture.
• Paintable, Sandable & Stainable: After curing, trim and finish the foam to blend seamlessly with your surfaces.
• All-Direction Dispensing: Apply from any angle for convenient reach into difficult spaces.
• Fast Tack Time: Tack-free in 20 minutes and fully cured in 8 hours, keeping your project moving forward.
• Multi-Surface Compatibility: Adheres to wood, metal, masonry, glass, and most plastics.

Specifications

• Brand: Great Stuff
• Model: 157913
• Size: 20 oz. can
• Color: Yellow
• Cure Type: Rigid foam, waterproof
• Tack-Free Time: 20 minutes
• Full Cure Time: 8 hours
• Interior/Exterior: Yes
• Paintable: Yes
• Sandable: Yes
• Stainable: Yes
• All-Direction Dispensing: Yes