3M Fire Barrier Duct Wrap, 615+, 24 in x 1.5 in thick x 25 ft

3M™ Fire Barrier Duct Wrap 615+ is a high-performance, flexible fire protection wrap

• Enhanced version with improved performance.

• Offers greater flexibility and easier installation compared to the original 615.

• Better handling and conforms more easily around corners and irregular shapes.

• Same UL Listings as 615 (UL 1978, UL 2221), so can be used in the same grease duct and air duct applications.

• Better water and mold resistance, improving durability in humid or high-moisture environments.

Applications:

- Grease ducts (kitchen exhaust ducts / Type I)
- Ventilation air ducts
- Retrofit and new construction
- Restaurants, hospitals, commercial kitchens, high-rise buildings

Installation Notes:

Secure using stainless steel bands and seal with 3M™ Aluminum Foil Tape 427 or 433. Follow UL-listed assembly guidelines and local code requirements. Always use according to system listings for grease or air ducts.