3M Fire Barrier Block B258, Maroon Color, Pre-Formed Foam, Easy Installation, Sound Buffering, 2.36 in x 5.12 in x 8 in

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3M Fire Barrier Block B258, Maroon Features

• TESTED AND LISTED: Up to 2-hours in accordance with ASTM E814 (UL 1479) and CAN/ULC S115

• TIGHT FIRESTOP SEAL: Pre-formed foam block maintains tight firestop seal to prevent fire, smoke and toxic gas transmission

• SUITABLE FOR MEDIUM TO LARGE APPLICATIONS: Fits medium to large openings in wall and floor through-penetrations

• NO CURE TIME: Can help complete projects more quickly

• PRIMER PAINT READY: Block is paintable with primer

• EASY INSTALLATION: Installation requires no special tools

• DESIGNED FOR VERSATILITY: Can be repaired and reused as needed, saving time and labor

• For industrial/occupational use only. Not for consumer sale or use.

About 3M Fire Barrier Block B258, Maroon

3M Fire Barrier Block B258 is a pre-formed foam block designed for easy installation to effectively seal larger openings against smoke, toxic gas and flame. It is simple to use and helps reduce sound transmission.