• 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
• Re-enterable for inspections

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 
• There is no need for water, mixing or measurement to achieve specific thicknesses
• Re-enterable and easy to inspect — simply unwrap the mat, inspect the component and re-wrap.

• 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
• When applied to the back and sides of metallic utility boxes, 3M's endothermic mat helps achieve an equal F-rating and T-Rating in membrane penetrations of rated wall assemblies
• Also protects against large hydrocarbon pool fires in accordance with ASTM E 1529 (UL 1709)

• The mat is available with stainless steel or aluminium backing and is non-corrosive, easy to clean and requires no maintenance when properly installed