Product Description
3M™ Interam™ Endothermic Mat E‑54A is a flexible fire protection wrap that shields structural steel, electrical circuits, equipment enclosures, and membrane penetrations. When exposed to fire, its endothermic fibers release chemically bound water to absorb heat, offering extended fire resistance.
Key Benefits
- Multi-Rating Protection: Up to 4 hr fire rating for steel (ASTM E119) and 3 hr for circuits (ASTM E1725).
- Hydrocarbon & Jet Fire Tested: Rated for hydrocarbon pool fires and jet fires, plus standard cellulosic exposure.
- Flexible & Rewrappable: Easy to cut wrap for complex geometries; allows inspection and reapplication.
- Non-Corrosive: Stable inorganic fibers with stainless steel or aluminum backing.
- No Maintenance: Once installed, it requires no ongoing upkeep.
Best For
- Structural steel members
- Electrical conduits and raceways
- Equipment shrouds
- Membrane penetration protection
- Field and retrofit fire protection applications
- High-risk fire zones (hydrocarbon/jet exposure)
Product Properties
| Property | Specification |
|---|---|
| Form | Flexible endothermic mat wrap |
| Fire Ratings | 4 hr structural (ASTM E119), 3 hr electrical (ASTM E1725) |
| Fire Type Resistance | Hydrocarbon, jet, cellulosic fires (ASTM E1529/UL 1709, ISO 22899, ASTM E119) |
| Backing | Stainless steel or aluminum (non-corrosive) |
| Installation | Roll form—cuttable, wrap-applied, rewrappable |
| Maintenance | None required once properly installed |
| Packaging | Roll form (various widths & lengths) |



