Product Description
3M™ Interam™ Endothermic Mat E‑5A‑4 is a flexible, heat‑absorbing wrap system that releases chemically‑bound water under fire, cooling surfaces and extending fire protection. It’s designed for structural steel, cable trays, electrical circuits, and membrane penetrations.
Key Benefits
- 4‑Hour Fire Protection: Rated ASTM E119 for structural steel applications.
- Electrical Circuit Rated: Up to 3 hours per ASTM E1725.
- Hydrocarbon Fire Tested: Withstands pool fire conditions per ASTM E1529 (UL 1709).
- Flexible & Custom Fit: Easily cut and wrapped around complex shapes and corners.
- Reusable & Non‑Corrosive: Stainless steel or aluminum backing allows inspection and re-wrapping.
Best For
- Structural steel fire protection
- Cable trays & conduit guarding
- Electrical circuit wrap systems
- Membrane penetrations (electrical boxes)
- Critical systems (elevators, medical gas, safety circuits)
- New or retrofit fireproofing projects
Product Properties
| Property | Specification |
|---|---|
| Dimensions | 24.5 in × 20 ft roll |
| Backing Options | Stainless steel or aluminum |
| Fire Rating | 4 hr structural (ASTM E119) |
| Circuit Rating | 3 hr (ASTM E1725) |
| Hydrocarbon Fire | Certified per ASTM E1529 / UL 1709 |
| Smoke Rating | Low smoke evolution; non-flame supporting |
| Installation | Cut to shape; flexible wrap—no mixing required |
| Maintenance | Non-corrosive; inspectable and rewrappable |
