Description
Great Stuff™ fire block insulating foam sealant is a ready-to-use, minimal-expansion insulating foam sealant that fills and insulates gaps up to 3/4 in to restrict airflow. This distinctly orange solution seals electrical wiring run through wall studs as well as service penetrations in walls and between floors to provide a simple, cost-effective way to maintain the continuity of an approved fire block material throughout the house.
- Expands to fills, seals and insulates gaps up to 3/4 in
- Adheres to wood, metal, masonry, glass and most plastics
- Impedes spread of fire and smoke through service penetrations
- Seals service penetrations between floors
- Seals electrical runs through wall studs
- Forms a long-lasting, airtight and water-resistant barrier
- Tack-free in 5 to 15 min trimmable in 1 hr
ColorOrangeCompositionsDiphenylmethane Diisocyanate, Isomers and Homologues, 4,4′ -Methylenediphenyl Diisocyanate, Polymethylenepolyphenylisocyanate, Propoxylated Glycerin Polymer, Polymethylenepolyphenyl Polyisocyanate, Polypropylene Glycol Copolymer, Isobutane, Tris(1-Chloro-2-Propyl) Phosphate, Paraffin Waxes and Hydrocarbon Waxes, Chlorinated, Methyl Ether, PropaneSpecific Gravity1.069Flash Point-155Vapor Pressure1151Curing Time8
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