Pyrotherm HT

Pyrotherm Heat Treated (HT) - Atlantex Manufacturing Corp.Heat-Treated Sleeve – Product Overview

Pyrotherm HT sleeving provides an attractive heat-treated thermal protection and insulation solution for assemblies in many applications and industries. Manufactured with continuous filament E-Glass which has been tightly braided and heat treated to remove processing oils and residual organic binders, Pyrotherm HT provides reliable thermal protection and insulation with minimal smoking and off-gassing at temperature extremes.

Pyrotherm HT withstands continuous exposure to temperatures of 1000°F, is resistant to common industrial fluids and chemicals, and is a completely asbestos-free, non-hazardous insulation sleeve. Pyrotherm HT is used to protect hoses, wires, cables, and assemblies in industrial, automotive, and appliance applications.


Pyrotherm HT Data Sheet

Material Safety Data Sheet


Pyrotherm Heat Treated (HT) - Atlantex Manufacturing Corp.
Pyrotherm Heat Treated (HT) - Atlantex Manufacturing Corp.
Pyrotherm Heat Treated (HT) - Atlantex Manufacturing Corp.
Pyrotherm Heat Treated (HT) - Atlantex Manufacturing Corp.
Pyrotherm Heat Treated (HT) - Atlantex Manufacturing Corp.
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Working Temperature ° F ° C
Continuous: 1000 535
Material Composition
Added Value
Continuous filament E-Glass fiber REACh & RoHS compliant
Tightly braided insulating substrate Extensive stock for short lead times
Heat-treatment reduces off-gassing Economical system protection
Extremely expandable and flexible  Conformable & attractive finish
Flexible and lightweight protective sleeve heat-cleaned to reduce off-gassing of residual organics
Protects assemblies from thermal degradation in industrial, automotive, and appliance applications
Continuous-filament E-Glass braid provides extraordinary expansion and conformability
Good resistance to most common industrial chemicals and solvents
Pyrotherm HT is a stock product, allowing for fast turnaround time
Bulk lengths available for scrap minimization
Available in diameters 1/2″ Nominal ID (13mm) to 4″ ID (102mm)
Available in natural tan color
Pyrotherm HT – Part Numbers 
Sleeve ID* Size Standard Lengths** Part Number
1/2″ -8 Long, random lengths HT08201
5/8″ -10 Long, random lengths HT10201
3/4″ -12 Long, random lengths HT12201
7/8″ -14 Long, random lengths HT14201
1″ -16 Long, random lengths HT16201
1-1/4″ -20 Long, random lengths HT20201
1-3/8″ -22 Long, random lengths HT22201
1-1/2″ -24 Long, random lengths HT24201
2″ -32 Long, random lengths HT32201
2-1/4″ -36 Long, random lengths HT36201
2-1/2″ -40 Long, random lengths HT40201
3″ -48 Long, random lengths HT48201
4″ -64 Long, random lengths HT64201
*Nominal ID – Not Lay flat.
** Supplied in long, random lengths. Consult factory for specific length.

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If you would like to request a sample, please do by filling out the Request a Sample Form.
Additional Questions? Give us a call at (610) 518-6601, or email us at
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