High Temperature Cable Sleeving Products

Silicone Fiberglass Ultra-Sleeve High Temperature Sleeving with & without Hook & Loop Closure

Thermo-Trex® Silicone Fiberglass Ultra-Sleeve High Temperature Sleeving is a protective sleeve that is ideal for those areas where your cable runs through a particularly harsh environment of flash heat or flame, chemical or mechanical abuse. This Ultra-Sleeve offers heat resistance up to 500°F and excellent protection against moisture and chemicals.

Silicone Fiberglass Ultra Sleeve

Ratings / Characteristics

  • RoHS Compliant
  • Extreme Temperatures up to 2000°F (1093°C)
  • Continuous Temperature Range -65°F to 500°F
  • Excellent Moisture & Chemical Resistance


  • FINELY STRANDED SPUN GLASS FIBERS — Finer strands mean more flexibility. Higher density of glass fibers per square inch increases protection of cable.

  • EXTRA THICK SILICONE BARRIER — Provides a first line defense against heat, abrasion and moisture.

  • SILICONE JACKET — Offers excellent resistance to molten metal splash, radiant heat, chemicals and vibration.

  • AVAILABLE IN VARYING ODs — Allows you to buy the right size for the job. Protects most cable sizes.


  • Abrasions
  • Extreme Temperature
  • Flexing


Product Spec Sheet  DOWNLOAD

Part Numbers

  • 49100
  • 49105
  • 49101
  • 49102
  • 49103
  • 49104
  • 49107
  • 49109
  • 49133
  • 49137
  • 49140
  • 49142
  • 49144
  • 49148
Our phone number on the cable looks really cool, too.
Steve Uhlir
Operations Manager, Classic Diagnostic Imaging – Macedonia, Ohio


Reach out today, and an experienced technical expert will contact you to assess your needs and provide an initial quote.
Request A Quote