High Temperature Twisted Ropes

Overview: High Temperature Twisted Ropes

Final Advanced Materials supplies various ranges of high-temperature-resistant twisted ropes. The maximum peak temperature resistance is 1,260 °C. Various compositions are available, for the optimum fulfilment of individual requirements: Zetex®, silicate, biosoluble fibre and glass fibre. These products are primarily employed as insulating seals, and are particularly renowned in the glass-making industry, or for use in industrial furnaces.

Applications of Twisted Ropes

  • Insulating seals
  • Thermal insulation
  • Insulation of pipes and exhausts
  • Sealing gaskets for industrial furnaces and boilers

Comparative Table




Zetex® Silicate Biosoluble



3 to 50

6 to 25

3 to 12

12 to 60




Max. Operating Temperature







Peak Temperature






1glass reinforcement 2Inconel® reinforcement

Our Range of Twisted Ropes

E-Glass Fibre, up to 700 °C

E-glass fibre ropes are produced from textured and twisted strands of diameter ranging from 6 to 9 µm. These products are soft, and extremely flexible. These are employed in applications involving continuous exposure to temperatures up to 550 °C. Versions sheathed in stainless steel or glass fibre are available, in order to permit the compaction of the rope and increase its abrasion-resistance. E-glass fibre ropes are available in diameters ranging from 3 to 50 mm.


  • Sealing gaskets for industrial furnaces and boilers
  • Thermal protection
  • Electrical insulation of cables and pipes

Zetex® Fibre, up to 700 °C

Our Zetex® twisted ropes are made of twisted fiberglass and commonly used in high temperature sealing and packing applications involving hot air, steam, water, fluids, or gases. They are resistant to most acids and alkalis, and won't shrink, stretch, or unravel. Twisted ropes are a conformable and economical product used for sealing boilers and oven and furnace doors, including those with uneven surfaces. They are available in diameter of 6 mm, 12 mm, 12 mm, 20 mm et 25 mm as well as in ZetexPlus® version.


  • Heat insultation
  • Insulation of pipes and tailpipes
  • Sealing boilers and oven & furnace doors

Square- or rectangular-section E-glass fibre ropes are also available on request. Resistant to a peak temperature of 550 °C, these products have excellent flexibility and mechanical resistance. They are available in various dimensions, ranging from 4x4 mm to 60x60 mm, and from 6x4 mm to 60x25 mm in the case of rectangular sections.

Biosoluble Fibre, up to 1,260 °C

Ropes may be reinforced with refractory steel or glass fibre. They remain soft and flexible, even at very high temperatures. These products contain 20 % organic binder, in order to facilitate the carding process. The binder is lost as the temperature rises, without affecting the remainder of the product.


  • Insulation of industrial furnaces
  • Insulation of boilers
  • Insulating seals

Silicate Fibre, up to 1,200 °C

Silicate fibre products are inorganic and contain no toxic or irritant substances. The good thermal and mechanical properties of these products make them excellent replacements for asbestos-based products. With a diameter of 9 μm, these fibres pose no hazard to health. 

S94 products contain over 94 % de SiO2, and function as excellent thermal insulators at temperatures up to 1,100 °C.


  • Sealing flanges
  • Insulating products

Physical variables included in this documentation are provided by way of indication only and do not, under any circumstances, constitute a contractual undertaking. Please contact our technical service if you require any additional information.

High Temperature Twisted Ropes (181.17k)

Date Sheet: High Temperature Twisted Ropes

High Temperature Biosoluble Twisted Ropes 1260°C

The biosoluble ropes have excellent high-temperature resistance up to 1200 °C.
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High Temperature E-Glass Twisted Ropes 700°C

Final Advanced Materials offers E-glass twisted ropes with a temperature resistance of up to 700°C. They are made from textured and twisted strands with diameters from 6 to 9 µm. These products are flexible and soft and are mainly used as seals.
Full description

High Temperature Silicate Twisted Ropes 1200°C

Silicate cords are mainly used to replace asbestos-based products with good thermal and mechanical properties.
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High Temperature Zetex® Twisted Ropes 700°C

Final Advanced Materials offers Zetex® twisted ropes that can withstand temperatures up to 700°C. Used for sealing boilers and oven and furnace doors, including those with uneven surfaces. They are available in diameter of 6 mm, 12 mm, 20 mm and 25 mm.
Full description