615 Plus Duct Wrap 3M™ Fire Barrier

Minimizes Damage to Your Facility in the Event of a Fire

Low Price Guarantee


What's special about this air and grease duct wrap?

  • Protects grease and air ducts from temperatures of up to 2,192°F (1,200°C) for up to 2 hours
  • Lightweight, flexible construction lets you easily install around sharp corners and obstacles
  • Low 1.5 inch thick profile and zero clearance requirement allows you to install in some of the most congested areas for maximum versatility
  • Ideal for providing reliable fire protection for ducts in restaurant kitchen exhausts, exit corridors and elevator smoke ventsUL rated, ULC rated
  • Click for More Features

A fire will always cause a certain amount of damage, but this can be minimized by using the best protection. Fire Barrier 615+ Duct Wrap by 3M™ guards your ducts from fires for up to 2 hours, preventing flames from destroying ducts. This duct wrap also prevents smoke from travelling to other areas in your facility where it can hurt personnel and destroy equipment.


Please Note: These products ship in 5-7 days

3M-DW61524P Fire Barrier 615+ Regular 1.5 "H x 24" W x 25' L
(3.81 x 60.95cm x 7.62 m)
49.7 lbs (22.54 kg)
3M-DW61548P Fire Barrier 615+ Extra Wide 1.5" H x 48" W x 25' L
(3.81 x 121.9 cm x 7.62 m)
90 lbs (40.82 kg)

  • Available in 24 and 48 inch wide rolls for varying application sizes
  • Saves time and money over expensive difficult to install fire-rated duct enclosures
  • All industry standards are printed on the material for easy identification during inspections
  • Meets all pertinent codes and industry standards to accommodate any application



Maximum Temperature 2192°F (1200°C) 
Blanket Color White
Scrim Color Aluminum with Black Text
Blanket Weight 0.9 lbs/ft.2 (4.38 kg/m2)
Surface Burning Characteristics
  • Type: Foil Encapsulated Blanket
  • Flame Spread: 0
  • Smoke Development: 0
Shelf Life Indefinite when stored unopened in a dry warehouse environment
  • Air Ducts: Apply 1 Layer
  • Grease Ducts: 2 Layers
Industry Standards
  • ICC-ES AC101
  • ASTM E 2336
  • ASTM E 119
  • ASTM E 814
  • ASTM E 84
  • ASTM E 136
  • ASTM C 518
  • ISO 6944-85


Physical Properties

Thermal Conductivity Btu - in. / hr - ft2 -°F W /m2 - K
500°F (260°C) 0.6 0.09
1000°F (537°C) 1.15 0.17
1500°F (815°C) 1.93 0.28
1800°F (982°C) 2.51 0.36
2000°F (1093°C) 2.94 0.43


Single layer R-Value 6.38°F - ft - hr Btu

Linear Shrinkage (24 Hr@ 2012°F (1000°C)): 1.2%


Design Listings

Grease Duct Listings – ASTM E 2336 / ICC-ES AC101

Fire Resistive Rating Enclosure System Third-Party Testing Services Design Listing Description
1- and 2-hour 2 layers of 3M Fire Barrier Duct Wrap 615+ ICC-ES ESR-1255
Intertek 3MU/FRD 120-18
Intertek 3MU/FRD 120-19


Ventilation Duct Listings – ISO 6944

Fire Resistive Rating Enclosure System Third-Party Testing Services Design Listing Description
1- and 2-hour 1 layer of 3M Fire Barrier Duct Wrap 615+ Interek 3MU/DI 60-01
Underwriters Laboratories HNLJ V-27
Interek 3MU/DI 120-01
Rectangular/Round (1 Hour)
Rectangular (2 Hour)
Rectangular/Round (2 Hour)








Q:can 3M fire wrap be painted (after inspections)?

Asked by mark m. on


  • - Thank you for your question. While it can be done, this is not recommended as the fire wrap will lose some of its protective properties.

    Fernando M. on

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