Big Gap Foam Sealant, Triple Expanding, 20-oz.

Discover the Big Gap Triple‑Expanding Foam Sealant, a 20‑ounce high‑expansion polyurethane foam engineered to fill oversized openings and lock out unwanted air. Its rapid rise creates a solid, insulating barrier that conforms to cracks, gaps and holes larger than ½ in., delivering lasting comfort for both interior and exterior projects. The foam expands three times its original volume, ensuring a tight, waterproof seal that resists weather and temperature fluctuations.

Key Benefits: This versatile sealant eliminates drafts, reduces energy loss, and provides a durable barrier against moisture. It cures to a rigid, paint‑ready surface that can be sanded or stained, allowing seamless integration with surrounding materials for a professional finish.

• Triple‑Expansion Formula: Generates three times the original volume, perfect for large gaps and deep voids, boosting insulation performance and draft protection.
• Universal Adhesion: Bonds securely to wood, metal, masonry, glass and most plastics, making it ideal for diverse repair and construction tasks.
• Fast Tack‑Free Time: Becomes handling‑free in just 20 minutes, enabling quick progression to sanding, painting or further assembly.
• Paintable & Sandable Finish: Cures to a rigid, sandable surface that accepts paint, stain or primer, allowing flawless color matching and aesthetic results.
• Waterproof & Weather‑Resistant: Forms a moisture‑tight seal that stands up to rain, snow and temperature extremes, protecting structures from water intrusion.

Why Choose This Foam Sealant? With its powerful expansion, broad material compatibility, and rapid cure time, this sealant delivers professional‑grade insulation and sealing in a single step. Whether you’re tackling home improvement, HVAC sealing, or outdoor repairs, the Big Gap foam provides a reliable, energy‑saving solution that lasts for years. Trust this all‑purpose, waterproof foam to keep your space comfortable, efficient, and protected.