Knitted Fiberglass Sleeve: High Temperature, Heat, Flame & Fire Resistant
and Thermal Insulating
For Wire, Cable, Hose, Tube, Pipe Protection
1200°F / 648°C Continuous Exposure:
Higher Intermittent


This high temperature, heat & flame resistant knitted fiberglass sleeve is fabricated from high quality type E fiberglass that will not burn and will withstand continuous exposure to temperatures of 1200°F / 648°C. This high temperature sleeve provides protection for industrial wires, cables, hoses (hydraulics), tubing and pipes, along with providing thermal insulation and personnel protection. 

This material resists most acids and alkalis and is unaffected by most bleaches and solvents.  It is highly flexible and conformable.

The base fiber is manufactured to the specifications of ASTM D-578, ASTM committee D13, and subcommittee D13.18.

Knitted sleeve is less dense than the same size braided sleeve, but can provide similar spacing protection for hoses and cables as braided at a lower cost.

This product is 100% Asbestos free. Non-Asbestos.

Available By-The-Foot and in 100 foot lengths.  Minimum order value may apply to By-The-Foot quantities.
High Temperature Heat Resistant
Fiberglass Knitted Sleeve
Benefits of our High-Temperature Fiberglass Heat Protection Products

Fiberglass offers excellent heat resistance, retaining more than half of its room temperature tensile strength at 675°F / 357°C, and more than 25% at 875°F / 468°C.  It begins to soften at 1500°F / 815°C and melts near 2050°F / 1121°C. Non-combustible; high resistance to chemicals and unaffected by UV light.
Catalog Page & Pricing
Part Number
S-FG-KNIT
Technical Specifications
Fiber Type: E Glass
Specific Gravity: 2.54-2.69
Breaking Tenacity: 1.71 gf/TEX. Std. 1.71 gf/TEX Wet
Effect of Heat: Will not burn; Retains 75% tensile at 343C; Softens at 732-877C; Melts at 1121-1182C
Tensile Strength: 450,000-500,000 psi.
Effect of Acids and Alkalis; Resistance to acids is fair.  Good resistance to most alkalis. 
Breaking Elongation:  4.81% Std.  4.81% Wet
Elastic Recovery: 100%
Effect of Bleaches and Solvents: Unaffected
Average Stiffness: 2824.3 cn/TEX
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High Temperature Heat Resistant Fiberglass Knit Sleeve Wire Cable Hose Protection
High Temperature Heat Resistant Thermal Insulating Fiberglass Knit Sleeve Wire Cable Hose Protection Catalog Page