GREAT STUFF SMART DISPENSER Fireblock – Impedes spread of fire and smoke through service penetrations. Use for up to 30 days with the Smart Dispenser. Tested according to ASTM E84, ASTM E814 (modified), UL 1715. Seals service penetrations between floors and electrical runs through wall studs. Bright orange colored foam for visual inspection. Forms a long-lasting, airtight and water-resistant barrier. Tack free in 5-15 minutes, trims in one hour. All direction dispensing – UL Classified, ESR-1961, CCMC 13074-L. Size 12 ozs.