Product Description
3M™ Interam™ Endothermic Mat E‑54C (B40067437) is a space-efficient, flexible fire protection wrap supplied in 24.5″ × 20′ rolls. When exposed to intense heat, it absorbs heat via moisture release, effectively slowing fire progression around structural steel, conduits, cable trays, and membrane penetrations.
Key Benefits
- Multi-Hazard Fire Protection: Up to 4 hr structural steel, 3 hr electrical circuit performance per ASTM E119/E1725.
- Resistant to Extreme Fires: Rated for hydrocarbon pool fire and jet fire exposures in accordance with UL 1709 and ISO 22899.
- Flexible & Reinstallable: Wraps around irregular shapes, re-wrappable, and with no maintenance necessary.
- Low-Maintenance & Non-Corrosive: Inorganic composition backed by stainless or aluminum foil—repairable and inspection-friendly.
- Compact & Lightweight: Roll format simplifies storage and onsite handling—no mixing or fixatives required.
Best For
- Structural steel fireproofing
- Cable trays and conduit protection
- Electrical circuits and junction boxes
- Membrane and wall penetration sealing
- Industrial & commercial fire applications
- Hydrocarbon and jet fire scenarios
Product Properties
| Property | Specification |
|---|---|
| Dimensions | 24.5″ (622 mm) wide × 20 ft (6.09 m) per roll |
| Fire Ratings | 4 hr structural (ASTM E119), 3 hr electrical (ASTM E1725) |
| Fire Scenarios | Hydrocarbon (UL 1709), Jet (ISO 22899), Cellulosic (ASTM E119) |
| Backing | Stainless steel or aluminum—inorganic & non-corrosive |
| Packaging | 1 roll per case (B40067437) |
| Properties | Flexible, cuttable, re-wrappable, inspection-friendly |



