4 in. Fire Barrier Self-Locking Pillow

Part #3M05111516578  |  Manufacturer Part #05111516578


4 in
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Product Details

  • Firestop tested for up to 3 hours in accordance with ASTM E 814 (UL 1479)
  • Intumesces to form a hard char that tightly seals penetrations against flame spread, smoke and toxic gases
  • No wire mesh required
  • Graphite-free, does not conduct electricity
  • Interlocking strips quickly lock pillows together
  • Meets UL classified code requirement
  • Re-enterable and re-useable for new or retrofit installations
  • Easy to install and easy to remove



ADA Compliant: No

ASTM Specifications: ASTM E-814

FM Approved: No

Height: 4 in

Length: 9 in

Type: 3M05111516578

UL Listed: Yes

Width: 2 in