Great Stuff Fire Block Foam Sealant, 12 oz. is a high-quality polyurethane foam designed to impede the spread of fire, smoke, and toxic gases. This sealant is i for sealing service penetrations between floors and electrical runs through stud walls, while also effectively stopping drafts and helping to save energy. Featuring minimal expansion, it is suitable for use in Type 5 residential buildings, though it is not intended for industrial or commercial applications. The foam is orange in color for easy code identification and complies with ASTM E84, ASTM E814, and UL 1715 standards. Each 12 oz. can covers up to 495 linear feet at a 1/4" bead, with a cure time of 8 hours and a shelf life of 18 months. It performs well in service temperatures up to 120 degrees Fahrenheit, making it a reliable choice for fire blocking needs. Model Number: 306179