Quick tech specs
- Graphite-free composition
- No wire mesh required
- Expands to form a hard char
- Re-enterable and re-useable
Know your gear
3M Fire Barrier Pillow is self contained, highly intumescent firestop product for use in through-penetration firestops. The 3M Fire Barrier Pillows achieve up to 3 hour fire ratings when tested by Underwriters Laboratory, Inc. in accordance with ASTM E 814 (UL1479).
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