Great Stuff Pro™ Gaps & Cracks

Great Stuff Pro™ Gaps & Cracks Polyurethane Foam Sealant is a gun-applied, insulating foam sealant that expands up to 3 inches to take the shape of gaps, creating a long-lasting, water-resistant and fireblock seal around plumbing and electrical, in basements, attics, and more.

• Expands to fill, seal, and insulate gaps up to 3 inch (76mm)
• Reusable for 30 days when left attached to GREAT STUFF PRO™ Dispensing Gun
• Forms a long-lasting, airtight, weather-resistant seal (GS-123)
• Helps keep insects, moisture/condensation and allergens out
• Adheres to wood, metal, masonry, glass and most plastics
• Fireblock formulated
• Interior/exterior use¹
• Tack-free in 3-10 minutes²; trimmable in one hour
• Paintable, stainable and sandable
• Orange-colored foam for easy inspection identification
• UL Classified

 ¹ Skin of cured foam can discolor if exposed to natural light. Paint or coat foam for the best results. 

² 70 ± 5°F and 50 ± 5 % RH, 1-inch bead diameter, 6-inch length. The cure rate is dependent on temperature, humidity, and size of the foam bead.