Fire Protection Insulation


600 Riverwalk Pkwy.
Suite 120
Tonawanda, NY 14150
Fax: 716-768-6400
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Unifrax is a leading producer of high-temperature insulation products providing innovative heat management solutions and energy savings for a broad range of industries.

Our FyreWrap® fire protection materials include a family of high temperature insulation blankets specifically designed to provide a flexible, fire protection wrap for a variety of passive fire protection applications. This lightweight, flexible material minimizes labor and installation time and saves valuable building space. FyreWrap Duct Insulation offers superior fire protection and design flexibility including:

  • Alternate to fire-rated gypsum board shaft enclosures, saves valuable building space.
  • 1 - and 2-hour fire rated systems for ventilation, exhaust and grease duct systems.
  • Systems available that comply with all editions of applicable Mechanical Codes.
  • Solutions for complex configurations and limited space conditions in new and retrofit construction.
  • Able to withstand continuous high operating temperatures without degrading.
  • Can be installed at zero clearance to combustibles at any location on the wrap.
  • Design Listings and local approvals available to verify compliance.


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Air Distribution System (ADS) Duct Insulation image

Air Distribution System (ADS) Duct Insulation - FyreWrap® Elite® 1.5 One-Layer System, per ISO 6944

Unifrax's FyreWrap® Elite® 1.5 Duct Insulation is a single-layer flexible duct wrap enclosure for 1- and 2-hour fire-ratedair distribution systems (ADS ducts). Typical duct types include smoke control, hazardous exhaust, laboratory chemical fume, stairwell and vestibule pressurization, ventilation, supply/return ducts, commercial dryer exhaust, as well as refuse and linen chutes. This slim, compact design is an alternate to code prescribed fire-rated shafts and results in significant weight, space and labor savings when compared to traditional shafts.

FyreWrap Elite 1.5 Duct Insulation Air Distribution System (ADS) offers the following features:

  • 1- and 2-hour fire-rated enclosure
  • Alternate to fire-rated shaft
  • Zero clearance to combustibles at all locations on blanket wrap
  • Saves weight, space, labor
  • Thin, lightweight single-layer system
  • High-temperature, biosoluble insulation
  • Durable foil-scrim covering
  • GREENGUARD listed for Microbial Resistance

Product Information Sheet

Rated 5 based on 1 product reviews
Plenum Insulation image

Plenum Insulation - Fyrewrap® 0.5

Unifrax's FyreWrap® 0.5 Plenum Insulation is a high-temperature insulation blanket specifically designed to provide a single layer, flexible enclosure around combustible items located within fire-rated return air plenums. New construction, building renovations or modifications to the electrical and mechanical systems may result in the installation of plastic pipe or plastic-coated cables that cannot meet the minimum combustibility requirements defined in the Mechanical Code. FyreWrap 0.5 Plenum Insulation provides fire protection for these installed items by preventing flame propagation and smoke development in the plenum area.

FyreWrap 0.5 Plenum Insulation offers the following product features:

  • Lightweight, flexible product form
  • Scrim encapsulated
  • Easy to cut, fabricate, wrap around pipes or cables
  • Thin, single layer design
  • High-temperature, biosoluble fiber

Product Information Sheet

Rated 5 based on 1 product reviews
Dryer Exhaust Duct Insulation image

Dryer Exhaust Duct Insulation - FyreWrap® DPS Insulation -C-1535, 5/14

Unifrax's FyreWrap® DPS Insulation is a high-temperature insulation blanket specifically designed, UL tested and certified to provide a single layer, one-hour rated flexible enclosure around dryer and residential kitchen exhaust ductwork. The product also provides code compliant fire protection for combustible items, such as plastic pipes by preventing flame propagation and smoke development in the plenum area.

Product Information Sheet

Rated 5 based on 1 product reviews
Duckmate® Access Door image

Duckmate® Access Door

Duckmate® Access Door

Unifrax I LLC is pleased to announce that F2-HT and Ultimate™ prefabricated access doors from Ductmate® Industries have been qualified for use with FyreWrap® Duct Insulation fire rated grease duct enclosure systems.

FyreWrap-Ductmate System Features:

  • Intertek Design Listings
  • Added to ICCES ESR-2224 Report
  • Approved in F2-HT and Ultimate doors
  • Largest door size tested: 24™x18™
  • Dramatically reduced installation time - no special tools or welding
  • Available in a variety of sizes
  • High temperature 2300™F gasket
  • Meets NFPA 96 requirements

Rated 5 based on 1 product reviews
FyreWrap® Cable Tray Insulation image

FyreWrap® Cable Tray Insulation

Many industrial processes require quick, controlled shut down of critical equipment in emergency situations to eliminate or minimize the threat of fire and explosion causing potential loss of life, equipment, and business operations. Cable Insulation provides an external insulation wrap around cables, trays and conduits to provide a fire rated enclosure, permitting continued operation for a specified period of time.

Unifrax's FyreWrap® Cable Insulation is a thin, flexible, insulation wrap designed to provide a fire-protective enclosure around cable trays and conduit. The FyreWrap system ensures electrical circuit integrity during exposure to an external hydrocarbon fire, permitting continued operation or controlled shutdown of critical equipment during emergency conditions. This system is FM Global Approved and meets ASTM E-1725 A Fire Tests of Fire-Resistive Barrier Systems for Electrical System Components, A the newest industry standard, requiring the highest level of performance for trays with zero to full cable loading. The system also meets ASTM E-1529 and provides circuit integrity ratings. FyreWrap complies with many industry specifications on fireproofing for petroleum and petrochemical processing plants.

Product Information Sheet

Rated 5 based on 1 product reviews
FyreWrap® Elite® Blanket image

FyreWrap® Elite® Blanket

FyreWrap® Elite® Blanket from Unifrax is a totally inorganic, flexible, high-temperature insulation blanket optimized for high performance passive fire protection applications. FyreWrap Elite utilizes a calcium, magnesium, silicate chemistry to provide thermal insulation at continuous operating temperatures up to 2012'™F (1100'™C). This fiber chemistry has been combined with Unifrax'™s proprietary fiber spinning technology to create a specialty high-temperature blanket with optimized fire protection properties.

FyreWrap Elite Blanket is used in a wide range of fire protection applications including appliances, prefabricated ductwork, chimneys, etc.

Product Information Sheet

Rated 5 based on 1 product reviews
FyreWrap® Marine Blanket image

FyreWrap® Marine Blanket

FyreWrap® Marine Blanket provides fire protection insulation for a variety of rated assemblies on marine structures and vessels. Thin, lightweight systems combined with a flexible product form result in lower installation costs and significant weight savings. This offers builders and owners reduced structure weight, which may yield increased vessel speed, fuel savings and available payloads.

FyreWrap Marine Blanket is utilized to insulate bulkheads and decks on passenger and vehicle fast ferries, cruise ships, commercial and military vessels, and offshore oil platforms. Tested systems are in compliance with U.S. Coast Guard regulations, now defined under IMO Res.A.754(18). 

Product Information Sheet


Rated 5 based on 1 product reviews
FyreWrap® Tank Car Blanket image

FyreWrap® Tank Car Blanket

FyreWrap® Tank Car Blanket from Unifrax is a flexible, lightweight, high strength, spun ceramic fiber blanket specifically designed to comply with Department of Transportation (DOT) Federal Railroad Administration (FRA) and Transport Canada requirements for thermal protection for railroad tank cars transporting crude oil, ethanol and other flammable liquids and hazardous materials. FyreWrap Tank Car Blanket is on the FRA Thermal Protection Approval List with numerous systems that have been tested to pool fire and torch fire conditions outlined in 49 CFR Part 179. It can be utilized on existing Type DOT-111 and CPC-1232 and new specification DOT-117 tank cars to comply with Final Rulemaking for Enhanced Tank Car Standards and operational Controls for High-Hazard Flammable Trains (HHFT). It can also be used for Type DOT-105, 109, 112, and 114 tank cars for compliance with DOT Hazardous Material Regulations (HMR). Unifrax has more than 30 years experience as a thermal protection supplier to the railcar industry.

Product Information Sheet

Rated 5 based on 1 product reviews
Grease Duct Insulation image

Grease Duct Insulation - FyreWrap® Elite® 1.5 Two-Layer System, per ASTM E2336

Unifrax's FyreWrap® Elite® 1.5 Duct Insulation is a two-layer flexible enclosure for two-hour rated commercial kitchen grease ducts. FyreWrap Elite 1.5 Duct Insulation is tested per ASTM E2336 and is acceptable as an alternate to a traditional fire-rated shaft. Installed as a two-layer system, FyreWrap Elite 1.5 complies with the International Mechanical Code (IMC) and Uniform Mechanical Code (UMC). FyreWrap Elite 1.5 Duct Insulation offers the following product features:

  • 2-hour fire-resistance rating
  • Alternate to shaft enclosure
  • Complies with IMC and UMC
  • Tested per ASTM E2336
  • Two-layer system; inner layer utilizes butt joint
  • High-temperature, biosoluble insulation
  • Zero clearance to combustibles, at any location
  • GREENGUARD listed for Microbial Resistance

Product Information Sheet

Rated 5 based on 1 product reviews

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Blankets image


Unifrax blanket and mat products consist of a group of thermally efficient high temperature insulating materials that combine the advantages of both low heat storage and complete resistance to thermal shock. Offering a broad range of thermal capabilities and physical characteristics, this product family provides proven and effective solutions to a variety of heat processing applications.

Unifrax offers a wide range of blanket products in a variety of chemistries, densities and thicknesses.
Rated 5 based on 1 product reviews
Boards image


Unifrax rigid board products are manufactured to provide excellent performance in any application which requires high modulus of rupture (MOR) and a rigid form. The product is designed to resist erosion, vibration, mechanical stress, and can be easily customized on jobs to fit any installation.
Rated 5 based on 1 product reviews
Vacuum Formed Shapes image

Vacuum Formed Shapes

Globally Unifrax is one of the leading manufacturers of insulating shapes formed from high temperature fibers. These vacuum formed components are designed to meet specific application requirements in a wide range of industries. By varying the formulation and manufacturing process, shape properties can be optimized to provide thermal insulation, transfer molten metals, provide an airtight seal or filter high temperature gases.

The product form for vacuum formed parts cover a wide range, from the production of high volume consumable shapes used in the metal casting industry, to precision machined combustion chambers for boilers, furnaces and stoves.
Rated 5 based on 1 product reviews
Papers & Felts image

Papers & Felts

Unifrax paper and felt products consist of a group of wet-laid nonwoven materials. The materials are manufactured using Unifrax alumino-silicate fibers wet-laid with a latex binder system to form a randomly oriented matrix. These products are flexible, light weight, and possess excellent thermal characteristics.
Rated 5 based on 1 product reviews
Microporous Insulation image

Microporous Insulation

The Excelfrax® product line is a family of products, based on advanced microporous insulation technology, which all exhibit superior insulating characteristics. Excelfrax microporous insulation is composed of inorganic oxides, primarily fumed silica. Silicates and opacifiers are added to improve the material performance. Microporous materials are very efficient insulation products. These products actually have thermal conductivity values lower than still air. This performance is based on the ability of microporous insulation to block the three modes of heat transfer (i.e., conduction, convection, and radiation).

Excelfrax® 1800 Board

Rated 5 based on 1 product reviews
FiberFrax Fabricated Product image

FiberFrax Fabricated Product

Multi-layer ceramic fiber composite insulation are effective products for thermal management, in particular where a maximum temperature reduction must be accomplished with the least amount of weight and in a minimum amount of space.

FiberFrax HSA Composite Systems
LTC HSA Systems

Rated 5 based on 1 product reviews
Coatings/Mixes  image


The specialties family of products provides a range of product forms which offer a choice of materials to address a wide range of application problems, such as resistance to hot gas erosion, flame impingement, the ability to be formed into special shapes and configurations, installation into blind hot spots and hard-to-insulate areas. These products also possess the advantages inherent with other Fiberfrax® ceramic fiber insulating materials: high temperature resistance, excellent insulating properties, thermal shock resistance, chemical stability, and ease of installation.

FC-25 Tamping Mix

FiberFrax QF-180 Blue & QF FiberMax Caulk

FiberFrax LDS

LDS AL-Mouldable


Rigidizer W

FiberFrax Topcoat 2600 Insulation Mix

FiberFrax Topcoat 3000

Topcoat M

Vari-Form Castable Materials

Rated 5 based on 1 product reviews

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Case Studies image

Case Studies

Case Studies / Editorials / Technical Bulletins.
Rated 5 based on 1 product reviews
FyreWrap®  Team Scores at Charlotte Arena image

FyreWrap® Team Scores at Charlotte Arena

BobCat Arena, NC
Superior duct insulation system and outstanding teamwork make everyone a winner.
Rated 5 based on 1 product reviews
Flexible duct wrap system fire-protects FedEx Forum image

Flexible duct wrap system fire-protects FedEx Forum

FedEx Grizzlies Arena, TN
Flexible duct wrap system fire-protects FedEx Forum.
Rated 5 based on 1 product reviews

{{}} {{this.hide}} Education

Continuing Education

Unifrax is pleased to offer a number of training courses relating to FyreWrap® Insulation.  They are designed specifically to educate Architects, Engineers, Building Owners, and Installers.  

Click here to take one of our many online courses

Rated 5 based on 1 product reviews

Last Update: 2021-02-18