3M™ Fire Barrier Electrical Box Inserts
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Details
Highlights
- Protection of membrane penetrations for listed metallic boxes
- Tested in accordance with ASTM E814 (UL 1479) (Certified as a Wall Opening Protective Material, UL Category CLIV)
- STC rating of 62 when tested in a STC 62 rated wall assembly
- Flexible
- Convenient slits for access to wiring
- Great for new construction and retro fit applications
- Full adhesive backing for easy installation
3M™ Fire Barrier Electrical Box Inserts are a flexible, one-piece fire-rated intumescent insert used to protect electrical boxes by adhering to the inside the box. When exposed to fire, the insert expands to fill up the box preventing the spread of fire and limiting temperature rise.
3M™ Fire Barrier Electrical Box Insert (EBI) is designed to help prevent the spread of fire in 1 and 2 hour rated gypsum wall assemblies when penetrated with metallic electrical boxes in the event of a fire. When exposed to a heat source, the material expands to seal the airspace inside the box and forms a char to deter the spread of fire.
Typical Properties
Similar products
Current product  3M™ Fire Barrier Electrical Box Inserts | ||
|---|---|---|
| Overall Width (Metric) | 82.55 mm, 95.25 mm | |
| Overall Width (Imperial) | 3.25 in, 3.75 in | |
| Overall Thickness (Imperial) | 0 in | |
| Overall Thickness (Metric) | 4.762 mm | |
| Product Type | Electrical Box Insert | |
| Overall Length (Imperial) | 3.25 in, 3.75 in |
3M™ Fire Barrier Moldable Putty Pads MPP+