3M B258 Fire Barrier Block 2.36 x 5.12 x 7.87 Inch Fire Protection

Product DescriptionThe 3M B258 Fire Barrier Block is a pre-formed foam block designed to seal larger openings against smoke, toxic gas, and flame. This product is effective for applications requiring fire safety and sound reduction. Its straightforward design allows for easy installation in various industrial and residential settings. Pre-formed foam structure for quick installation. Maintains a tight seal to prevent fire and gas transmission. Re-enterable and reusable, reducing waste. Product HighlightsThis fire barrier block helps protect against hazards in multiple environments. It is particularly useful in blank openings, metal pipes, and cable trays.Product InformationStandard Information Brand: 3M MPN: B258 Technical Specifications Dimensions: 8 inches long, 5 inches wide, 2 inches high Material: Foam Fire Rating: Up to 2 hours Specifications Met: ANSI Specified, ASTM E814/E84/E90/E413 Color: Maroon Suitable for Use With: Conduit Standards/Approvals: UL CS115|UL 1479/273