Expands to fills, seals, and insulates gaps up to 3/4 inch;Adheres to wood, metal, masonry, glass and most plastics;Impedes spread of fire and smoke through service penetrations2;Tested according to ASTM E84, ASTM E814 (modified), UL 1715;Seals service penetrations between floors;Seals electrical runs through wall studs;Forms a long-lasting, airtight and water-resistant barrier;Tack-free in 5-15 minutes3, trimmable in one hour;Orange-colored foam for easy identification and inspection;Cures rigid in 8 hours;All-direction dispensing;UL classified