Board and Blanket Insulation

Johns Manville equipment board and blanket insulation products provide solutions you can count on. These products deliver excellent thermal and acoustical performance and satisfy a wide range of application and design requirements. Our fiber glass boards and flexible fiber glass blankets are designed for use on process equipment, ducts and vessels. Contractors rely on JM’s board and blanket insulation products for superior handling strength and ease of fabrication for improved productivity. JM’s proprietary manufacturing process ensures optimal consistency during production, which results in a product quality you can trust.

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Fiberglass equipment insulation for industrial applications (service temp: 850°F)

Johns Manville 1000 Series Spin-Glas® is an equipment insulation designed to meet the demanding requirements of industrial applications. The controlled manufacturing process and unique binder results in improved mechanical properties and higher application temperatures. Typical applications include furnaces, boilers, heated vessels, ducts, tanks and other heating equipment. 

Density (pcf): 3.0
Service Temp (Nominal): 850° F
Thermal Conductivity: 0.23
Recycle Content: 18%

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Available Documents

Fiberglass equipment and duct insulation (service temp: 450°F)

Johns Manville 800 Series Spin-Glas® equipment and external duct insulation provides a broad range of solutions to meet your unique application needs. The breadth and depth of our product availability includes plain, FSK or AP faced board, where the facing acts as a vapor retarder. You can be assured you are getting the same superior performance from the facing as the insulation because we manufacture both to the highest quality standards. 800 Series Spin-Glas board is easily fabricated for an excellent finished appearance on duct and equipment systems. 

Density (pcf): 1.5 - 6.0
Service Temp (Nominal): 450° F
Thermal Conductivity (k): 0.22-0.24
Recycle Content: 18%

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Available Documents

Fiberglass board designed to be customized for unique pipe and tank applications in routine commercial and industrial heating (service temp: 850°F)

Johns Manville fabrication boards are designed for use in the fabrication of custom pipe and tank products and for use in routine commercial and industrial heating and process equipment applications. Our fabrication boards are light, strong and resilient for easy fabrication and installation, and are available in two densities with two different temperature ratings. Typical applications include pipe and tank insulation.  

Density (pcf): 3.0
Service Temp (Nominal): 650° F & 850° F
Thermal Conductivity (k): 0.23
Recycle Content: 18%

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Available Documents

Lightweight fiberglass blanket for industrial applications (service temp: 1000°F)

Johns Manville High Temperature Blanket (HTB) 26 EQ Spin-Glas® is a lightweight insulation blanket designed to provide high insulating efficiency for industrial applications. HTB 26 EQ Spin-Glas is an excellent choice for applications requiring a low density blanket. In addition, its high tensile strength provides resistance to damage during installation. This flexible blanket performs well for heated, irregular surfaces or in the manufacturing of removable insulating pads and covers. 

Density (pcf): 1.0
Service Temp (Nominal): 1000° F
Thermal Conductivity (k): 0.26
Recycle Content: 24%

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Available Documents

Fiberglass, large-diameter pipe and tank wrap for industrial applications: (service temp: 850°F)

Johns Manville Micro-Flex® is a large diameter pipe and tank wrap that provides an alternative solution to pre-formed insulation. Our manufacturing process yields a fiber orientation that enhances both the compressive strength and thermal performance of the final product when compared to conventional pipe and tank insulation. Micro-Flex rolls can be cut to size on-the-job and are available with FSK or AP vapor retarder facing. It provides a single solution to a variety of field applications for the contractor and distributer. 

Density (pcf): 2.5
Service Temp (Nominal): 850° F
Thermal Conductivity (k): 0.23
Recycle Content: 18%

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Available Documents

Formaldehyde-free® fiberglass, blanket-type duct wrap with FSK facing. (Service temp: 250°F)

Microlite® FSK Formaldehyde-free™ duct wrap offers superior thermal performance and condensation control in a lightweight, blanket-type insulation with an FSK facing. It is recommended for HVAC system exteriors or surfaces where design parameters prohibit the use of liner or board. Installing contractors prefer Microlite's binder for many reasons, including improved handling, easier cutting and less dust. Our manufacturing process ensures consistency during production, which results in reliable product quality.

R Value: 4.2 (1.5")
Permeance Rating (Facing): 0.02
Recycle Content: 24%
Greenguard: Gold

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Available Documents

Formaldehyde-free® fiberglass, blanket-type duct wrap with PSK facing. (Service temp: 250°F)

Microlite® PSK Formaldehyde-free™ duct wrap offers superior thermal performance and condensation control in a lightweight, blanket-type insulation with an PSK facing. It is recommended for HVAC system exteriors or surfaces where design parameters prohibit the use of liner or board. Installing contractors prefer Microlite's binder for many reasons, including improved handling, easier cutting and less dust. Our manufacturing process ensures consistency during production, which results in reliable product quality.

Permeance: 0.02
R-value: 4.2
Recycle Content: 24%
Greenguard: Gold

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Available Documents

Fiberglass equipment insulation designed for precipitators, baghouses, scrubbers, ducts, & breechings in power-generation plants (service temp: 850°F)

Johns Manville Precipitator Spin-Glas® is a semi-rigid, lightweight industrial equipment insulation specifically designed for insulating precipitators, baghouses, scrubbers, ducts and breechings in power-generation plants. It can also be used for insulating boilers, heaters, ovens and other industrial equipment. Precipitator Spin-Glas is available in a variety of standard and custom sizes and is an excellent choice for applications that do not require higher densities.

Density (pcf): 2.4
Service Tempe (Nominal): 850° F
Thermal Conductivity (k): 0.24
Recycle Content: 18%

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Available Documents

Polyisocyanurate foam board designed to insulate rooftop ducts and HVAC equipment

The XSPECT® ISOfoam APF board is a closed-cell polyisocyanurate foam core bonded to a foil facer on both sides. It is a highly versatile insulation that can be used in a variety of mechanical and OEM applications, including rooftop ducts, appliances, HVAC equipment, refrigerated transportation, storage vessels, and railcars.

XSPECT ISOfoam APF board offers one of the highest R-values of any rigid insulation available, making it ideal for both hot and cold applications. The foil facer on the insulation operates as an excellent vapor-retarder, working in tandem with the closed cell foam to contribute to a tightly sealed system. Additionally, the lightweight foam makes it easy to fabricate and install.

R-Value: R-2.7 - R-26
Thickness: 1" - 4"
Sizes: 48"x96", 48"x108", 48"x120"
Facings: Silver/Opaque

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Available Documents