Product Description
3M™ Interam™ Endothermic Mat E‑54C is a flexible, heat-absorbing wrap supplied in 24.5″ × 20′ rolls. Its endothermic material releases chemically bound water under intense heat, cooling surfaces and delaying fire progression around structural steel, electrical circuits, conduit, cable trays, and wall membranes.
Key Benefits
- High-Level Fire Resistance: Provides 4 hr structural steel protection (ASTM E119) and 3 hr electrical circuit continuity (ASTM E1725).
- Hydrocarbon & Jet Fire Tested: Withstands hydrocarbon pool fires (ASTM E1529/UL 1709) and jet fires (ISO/EN standards).
- Flexible & Easy to Install: Roll form allows cutting, wrapping, inspection access, and re-wrapping without tools, mixing, or adhesives.
- Non-Corrosive & Maintenance-Free: Made with inorganic fibers and available with stainless steel scrim; no ongoing maintenance required.
Best For
- Fireproofing structural steel in walls and ceilings
- Protecting cable trays, electrical circuits, and conduits
- Wrapping around membrane & wall penetrations
- Hydrocarbon or jet fire risk zones
- New builds and retrofit fire protection
- Inspections—unwrap and re-wrap ability
Product Properties
| Property | Specification |
|---|---|
| Roll Size | 24.5″ (622 mm) × 20′ (6.09 m) |
| Fire Ratings | 4 hr (ASTM E119); 3 hr for electrical (ASTM E1725) |
| Fire Type | Cellulosic, hydrocarbon, jet fires |
| Backing Options | Available with stainless steel scrim |
| Installation | Cut-and-wrap, rewrappable without tools or adhesives |
| Material | Inorganic endothermic fiber mat |
| Maintenance | Non-corrosive; no maintenance when installed |




