Fire stopping

Flexible Wrap Fire Protection

 Flexible solutions for the protection of grease ducts, ventilation air ducts, return air plenums, emergency circuits, structural steel and more. These flexible wrap products make installation easy, even around corners. Ideal for use in a wide variety of commercial and industrial applications.

FLEXIBALE WRAP                                                     


3M™ Fire Barrier Duct Wrap 615+




Lightweight. Flexible. Protective. The only fire-rated duct wrap product you’ll need to help protect grease and air ducts.


Certified for grease ducts to ASTM E 2336 (including ASTM E 119 engulfment) in 2-layer systems. Certified for ventilation ducts to ISO 6944 in 1-layer systems and for other key life-safety duct applications.

Also used to achieve T-ratings for metallic penetrations

Tested and listed with UL and Intertek (OPL), meets the intent of IBC,

IMC, UMC, NFPA and other key life safety codes

Listed by California State Fire Marshal (Listing No. 2440-0941:5555)

ICC-ES Evaluation Report ESR-1255

Lightweight (6 lbs. per cu. ft.) and thin (1-1/2 in. — in accordance with

ASTM C 892 tolerances) for easier application

Heat-resistant (up to 2,192°F)

Flexible for wrapping around corners and obstacles

Non-asbestos wrap*

Available in 1-1/2 in. x 24 in. x 25 ft. roll, or 1-1/2 in. x 48 in. x 25 ft. roll




3M™ Fire Barrier Plenum Wrap 5A+



Lightweight wrap provides a flexible, non-combustible enclosure for cables and pipes in return air plenums.


Strong, lightweight and flexible material for easy installation

Tested to ASTM 84, NFPA 262 (UL 910) and UL 1887

Foil encapsulated scrim

Non-asbestos wrap

Available in 1 in. x 24 in. x 50 ft. roll, or 1 in. x 48 in. x 25 ft. roll





3M™ Aluminum Foil Tape 425

Designed to perform in high temperatures.

Used to seal cut edges of 3M™ Interam™ Endothermic Mat in order

to complete total encapsulation

Thermally-conductive, dead-soft aluminum backing combined with a transparent acrylic adhesive backing

4.6 mil (0.12mm) aluminum foil

4 in. x 60 yd. roll





3M™ FSK Facing Tape 3320




Conformable, easy-to-apply and temperature-resistant.


Used to seal cut edges of 3M™ Fire Barrier Duct Wrap,

3M™ Fire Barrier Plenum Wrap and similar products in order to complete total encapsulation

High-performance reinforced insulation tape (Foil/Scrim/Kraft)

UL listed and mold-resistant

Special acrylic adhesive works in both very cold and hot temperatures

3.89 in. x 50 yd. roll






3M™ Interam™ Endothermic Mat E-5A-4

Endothermic — releases chemically bound water to cool the assembly when exposed to high temperatures to protect structural steel, cable trays and circuits in conduits.

Up to 4-hour protection for structural steel (ASTM E 119), up to 3-hour

electrical circuit protection (ASTM E 1725) and up to 2-hour protection for

wall opening membranes (UL 1479)*

Outstanding performance in high-intensity fires, provides protection against

large hydrocarbon pool fires in accordance with ASTM E 1529 (UL 1709)

Made of a combination of organic/inorganic materials

Outdoor durable**

Available with a stainless-steel or aluminum backing

Easily cuts to size and flexible — install in new applications or directly over

existing fire protection

2/5 in. thick x 24-1/2 in. wide x 20 ft. long roll