3M™ FB249 Self-Contained Small Fire Barrier Pillow, 9 in L x 4 in W x 2 in H, 3 hr Fire Rating
3M™ Fire Barrier Pillow, Self-Contained, Small, 9 in Length, 4 in Width, 2 in Height, Fire Rating: 3 hr, Red
- Self-contained, intumescent fire barrier pillow use in a wide variety of through-penetration firestops including cable trays, conduit and blank openings
- Intumesces to form???? a hard char that tightly seals penetrations against flame spread, smoke and toxic gases
- Graphite-free, does not conduct electricity
- Re-enterable and re-useable for new or retrofit installations, easy to install
- Pillows are typically used to firestop gypsum wall, block wall and concrete floor assemblies
- No wire mesh required
- 18% volume expansion
- 6 PCF nominal density