2" x 6" x 9" 3M™ Fire Barrier Pillows FB249, Medium Self Contained, Intumescent, 16531-3

3M™ Fire Barrier Pillows are self-contained, intumescent products designed for use in through-penetration firestops, providing up to 3 hours of protection. This fire barrier pillow expands to form a hard char that tightly seals against flame spread, smoke and toxic gases. Pillows are also engineered to be re-enterable and re-useable for new or retrofit installations.

Highlights

• Firestop tested for up to 3 hours of protection in accordance with ASTM E 814 (UL 1479)
• Expands to form a hard char that tightly seals against flame spread, smoke and toxic gases
• Re-enterable and re-useable for new or retrofit installations
• Graphite-free composition does not conduct electricity
• No wire mesh required and easy to install, inspect, remove, and reuse as needed
• Excellent aging properties for long-lasting durability and performance