3M Interam Endothermic Mat E-5A-4, 24.5 in x 20 ft, 1 Roll/Case

• Endothermic design releases cooling chemical-bound water when exposed to extreme heat
• Flexible – easy to cut and configure for installation on complex shapes and around corners
• Non-corrosive and requires no maintenance when properly installed
• Provides protection against intense fires including hydrocarbon pool fires
• Versatile – rated for structural steel, electrical circuits, wall opening membranes

3M Interam Endothermic Mat E-5A-4 is an easy-to-install heat-absorbing wrap system that provides excellent fire resistance for structural steel components, critical electrical components and wall opening membranes. When exposed to intense heat, the mat releases chemically-bound water to cool its outer surfaces. Installers can easily cut the material to fit even complex installations.

A Cool System for Fire Protection
Tested for a full range of critical applications, our 3M™ Interam™ Endothermic Mat E-5A-4 blocks heat by chemically absorbing it – when exposed to extreme heat, it releases chemically bound water that cools the outer surface of the mat. This helps reduce the rate of temperature rise and slows heat transfer even during intense fires. This mat provides up to 4-hour fire protection for structural steel applications in accordance with ASTM E 119, up to 3 hour fire protection for electrical circuit applications in accordance with ASTM E 1725 and, when applied to the back and sides of metallic utility boxes, our endothermic mat helps achieve an equal F-rating and T-Rating in membrane penetrations of rated wall assemblies. It also protects against large hydrocarbon pool fires in accordance with ASTM E 1529 (UL 1709).

Recommended Applications

• Structural steel
• Electrical circuity/raceways
• Cables, cable trays and conduits
• Equipment shrouds
• Membrane penetrations (e.g. spaces containing electrical panels, elevator call boxes, safe deposit boxes, medical gas boxes)
• Critical systems for safe shutdown or occupant evacuation
• New or retrofit construction
• Applied over existing fire protection

Saves Before, During and After Installation
3M™ Interam™ Endothermic Mat E-5A arrives in a convenient roll that makes for simple storage and ease of use on the job site. Flexible and easy to cut and configure, this material makes installation faster and easier even on complex shapes and around corners – ideal for new and retrofit applications in the field. There is no need for water, mixing or measurement to achieve specific thicknesses. The mat is available with stainless steel or aluminum backing and is non-corrosive, easy to clean and requires no maintenance when properly installed. It is also re-enterable and easy to inspect – simply unwrap the mat, inspect the component and re-wrap.

The Science of Better Fire Protection from 3M
Since 1925 when one of our lab assistants invented masking tape, 3M has been applying science to life –developing adhesive products and technologies that help entire industries and individual businesses worldwide. The work that began with a single 3M engineer now spans decades and generations. And all of it goes into each of our adhesives, sealants, protective coatings, devices and fire resistance products including 3M™ Interam™ Endothermic Mat E-5A to improve performance, and to help businesses like yours operate faster, better and more efficiently.

Trusted 3M Interam Model

The 3M Interam Endothermic Mat E-5A-4 offers reliable fire protection with a proven brand and model. This product is designed to absorb heat and release cooling water when exposed to extreme temperatures, helping to protect critical components.

Its endothermic design supports fire resistance for structural steel and electrical systems, making it a dependable choice for safety in demanding environments. The E-5A-4 model ensures consistent performance where it matters most.

Flexible Installation Format

This mat comes in a convenient roll format, measuring 24.5 inches by 20 feet, which makes it easy to handle and install. The roll format allows installers to cut and shape the mat to fit complex shapes and corners without hassle.

Because it’s flexible and easy to configure, the 1 Roll/Case packaging simplifies storage and job site use. This format supports both new construction and retrofit applications efficiently.

Effective Fire Protection System

The E-5A-4 mat provides up to 4 hours of fire protection for structural steel and up to 3 hours for electrical circuits. It works by releasing chemically bound water to cool surfaces during intense fires, slowing heat transfer and temperature rise.

It also protects against hydrocarbon pool fires and is rated for use on wall opening membranes. This system is versatile and meets ASTM standards for critical fire resistance applications.

Durable Non-Corrosive Material

Made with non-corrosive materials, this mat requires no maintenance when properly installed. Its durable construction ensures long-lasting protection without degrading over time or needing frequent upkeep.

The mat is available with stainless steel or aluminum backing, enhancing its resistance to corrosion. This durability makes it suitable for various environments and applications.

Dimensions And Pack Count

The product dimensions are 24.5 inches wide by 20 feet long, providing ample coverage for fire protection needs. It is supplied as 1 Roll per Case, making it easy to order and manage inventory.

This sizing and pack count support efficient installation and storage, especially on job sites requiring flexible and ready-to-use fire protection materials.