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Fiberglass Ultra-Sleeve-High-Temperature-Sleeving 3QV_Web
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Fiberglass Ultra-Sleeve-High-Temperature-Sleeving Macro_Web

Thermo-Trex® Fiberglass Ultra-Sleeve-High Temperature Sleeving

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. The Fiberglass Ultra-Sleeve offers great heat resistance up to 538°C. Available in inner diameters from ¼” to 2-1/2” to fit cable ranges from 1/8” to 4”.


Finely Stranded Spun Glass Fibers

Fibers Finer strands mean more flexibility. Higher density of fibers per square inch increases the protection of the cable.

Extra Thick Braid

Braided E-glass fiber yarn, heat treated and coated with acrylic saturant for superior high temperature resistance.

High Temperature Properties

Suitable for continuous use at 538°C and intermittent use up to 650°C. Offers superior protection for cables, assemblies, hoses, and pipes.

Available in Multiple Diameters

Can expand and contract by approximately 25% of its nominal size to allow for selection of the right size sleeve for the application.

Ratings / Characteristics

  • RoHS Compliant

  • Continuous Temperature: 538°C (1000°F)

  • Intermittent Temperatures: Up to 650°C (1200°F)

  • Abrasion Resistance: Moderate

  • Flame Resistance: Excellent

  • Weld Spatter Resistance: Very Good

  • Molten Splash Resistance: Very Good

  • Flexibility: Outstanding

  • Water and Oil Resistance: Moderate



High Temperature



Part Numbers

Size Range
49200 0.25 3/8 to 5/8
49201 0.75 5/8 to 7/8
49202 1 7/8 to 1-1/4
49203 1.5 1-3/8 to 2-1/4
49204 1.75 2-3/8 to 4

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