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High Temperature

High temperature fiberglass sleeving is engineered to deliver superior protection for wires and cables in extreme heat environments. With increasing demand for robust insulation in industrial, automotive, and aerospace applications, this sleeving stands out for its exceptional thermal resistance and mechanical durability.

Performance data shows a strong interest in fiberglass sleeving, a keyword with high search volume and commercial value. By focusing on advanced materials and compliance with industry standards, high temperature sleeving ensures reliable performance where standard insulation fails.

25 items

Alpha Wire
PF2400 NA005
Additional RatingsUL 1441; UL VW-1; NEMA TF-2
Approx LBS/MFT1.4
ColorNA
Expanded I.D. (in)0.347"
MaterialUncoated Fiberglass Sleeving
Max. Temp648C
Min. Temp-60C
Nom. I.D. (in)0.325"
Starting at 131.40 
Lead Time: 44 days
Alpha Wire
PF2401 NA005
Additional RatingsUL 1441; UL VW-1; NEMA TF-2
Approx LBS/MFT1.2
ColorNA
Expanded I.D. (in)0.311"
MaterialUncoated Fiberglass Sleeving
Max. Temp648C
Min. Temp-60C
Nom. I.D. (in)0.289"
Starting at 113.20 
Lead Time: 44 days
Alpha Wire
PF2401/2A NA005
Additional RatingsUL 1441; UL VW-1; NEMA TF-2
Approx LBS/MFT6.6
ColorNA
Expanded I.D. (in)0.524"
MaterialUncoated Fiberglass Sleeving
Max. Temp648C
Min. Temp-60C
Nom. I.D. (in)0.5"
Starting at 288.80 
Lead Time: 44 days
Alpha Wire
PF24010 NA005
Additional RatingsUL 1441; UL VW-1; NEMA TF-2
Approx LBS/MFT0.5
ColorNA
Expanded I.D. (in)0.112"
MaterialUncoated Fiberglass Sleeving
Max. Temp648C
Min. Temp-60C
Nom. I.D. (in)0.102"
Starting at 48.66 
Lead Time: 44 days
Alpha Wire
PF24011 NA005
Additional RatingsUL 1441; UL VW-1; NEMA TF-2
Approx LBS/MFT0.5
ColorNA
Expanded I.D. (in)0.185"
MaterialUncoated Fiberglass Sleeving
Max. Temp648C
Min. Temp-60C
Nom. I.D. (in)0.095"
Starting at 47.20 
Lead Time: 44 days
Alpha Wire
PF24012 NA005
Additional RatingsUL 1441; UL VW-1; NEMA TF-2
Approx LBS/MFT0.4
ColorNA
Expanded I.D. (in)0.175"
MaterialUncoated Fiberglass Sleeving
Max. Temp648C
Min. Temp-60C
Nom. I.D. (in)0.085"
Starting at 44.49 
Lead Time: 44 days
Alpha Wire
PF24014 NA005
Additional RatingsUL 1441; UL VW-1; NEMA TF-2
Approx LBS/MFT0.9
ColorNA
Expanded I.D. (in)0.156"
MaterialUncoated Fiberglass Sleeving
Max. Temp648C
Min. Temp-60C
Nom. I.D. (in)0.066"
Starting at 42.73 
Lead Time: 44 days
Alpha Wire
PF24015 NA005
Additional RatingsUL 1441; UL VW-1; NEMA TF-2
Approx LBS/MFT0.3
ColorNA
Expanded I.D. (in)0.119"
MaterialUncoated Fiberglass Sleeving
Max. Temp648C
Min. Temp-60C
Nom. I.D. (in)0.059"
Starting at 42.73 
Lead Time: 44 days

What is High Temperature Fiberglass Sleeving?

High temperature fiberglass sleeving is a specialized insulating sleeve designed to protect wires, cables, and hoses from heat, abrasion, and electrical hazards. Constructed from woven fiberglass yarns, it offers outstanding thermal stability and mechanical strength.

Applications

  • Industrial furnaces and ovens
  • Automotive engine compartments
  • Aerospace wiring harnesses
  • Power generation equipment
  • Electrical enclosures exposed to high temperatures

Construction

  • Material: Uncoated or resin-coated fiberglass
  • Wall Thickness: 0.031" to 0.046" nominal
  • Expanded I.D.: 0.039" to 1.026" (various sizes)
  • Color: Natural (standard)

Specifications

  • Temperature Range: -70°C to 650°C (continuous)
  • Voltage Rating: Meets UL 1441, NEMA VS-1, UL VW-1, NEMA TF-2
  • Specific Gravity: 1.0–1.8
  • Quantity: Available in 100 ft lengths
  • Compliance: UL, CSA, NEC standards

Additional Information

High temperature fiberglass sleeving is ideal for environments where conventional insulation would degrade or fail. Its resistance to chemicals, moisture, and abrasion ensures long-term reliability. Choose from a wide range of diameters and wall thicknesses to meet your specific application requirements.