Glass fiber sleeves

1) Dielectric strength / more accurate values can be found from our data.

Glass fibre sleeves – coated and uncoated

Glass fibre sleeves

The glass fibre sleeves that we distribute and assemble are available in various cross-sections and dimensions (lengths) and with different coatings.
Depending on the application, glass fibre sleeves with PU-lacquer coating or silicone coating can be chosen. We also supply raw hoses as well as thermally treated raw hoses.
The resistant protective layers make the hoses particularly resistant and insensitive to external influences. These hoses are always used when high thermal loads are present.

Fields of application of the glass fibre hoses

Common applications are for the protection of internal wiring and power lines within heat generating consumers, heating units or machines. We supply the hoses mainly to manufacturers and repair companies of electric motors, generators and transformers.

Glass fibre sleevings are suitable for the production of profiles of any kind, as spar or other hollow constructions. With a suitable application method, it is guaranteed that the force-absorbing reinforcing fibre of the glass fibre sleeving is free of air bubbles, fits all over and seamlessly – thus without loss of strength – even around the edge of the shaping core and is sufficiently impregnated with the resin system used.

A 45° angle is optimal for high torsional or shear strength. The diameter of the braided sleeving can be changed by stretching or compressing, but the fibre angle should ideally be between 30° and 60°. A reinforcement in 0° direction can be achieved with so-called UD threads, which are also braided in.
Another material (fibres like aramid) can be used for this purpose.
The raw glass fibre sleeves are also used in the pultrusion of GFK profiles.

What are glass fibre tubes made of?

Glass fibre consists of silk-like glass threads in diameters between 0.01 and 0.3 mm. The threads are interwoven and are used for a wide range of technical applications, including paper reinforcements or decorative fabrics.
The threads, also known as filaments, are drawn at high temperatures above 1,000 degrees and made supple by certain additives. The individual spinning threads are processed into yarns, which are then used to produce glass silk sleeves in special knitting and weaving processes.
Due to their high temperature resistance and mechanical load capacity, non-conductive hoses are particularly suitable for electrical insulation.

Properties of glass fibre sleevings

The following 8 properties also distinguish glass fibre sleeves:

  • Fire resistance
  • Dimensional stability
  • low heat conduction
  • good chemical resistance
  • Age resistance
  • Compatibility with organic materials such as acrylic, polyurethane or silicone
  • environmentally and health neutral
  • good workability
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