Tetraglas®, Tetraglas 3000®, and Ceramic Ropes

Our high-temperature fiberglass, silica, and ceramic ropes offer unique physical characteristics and levels of sealing performance for boiler, oven, and stove seals. They can also be utilized for high-temperature industrial packing and expansion joints. Even at elevated temperatures, our fiberglass, silica, and ceramic ropes are resistant to most acids and alkalis.

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Quick Reference


  • Tetraglas®: E-Glass Fiberglass
  • Tetraglas 3000®: Silica
  • Ceramic: Ceramic Fiber


  • Knitted
  • Twisted
  • Square Braided

Recommended Operating Temperature

  • Tetraglas®: 1000°F (540°C)
  • Tetraglas 3000®: 1800°F (980°C)
  • Ceramic: 2300°F (1260°C)

Size Range

  • 1/8″ (3.2 mm) to 4″ (101.6 mm) diameter


  • OEM
  • Boiler
  • Transportation
  • Wood, Pellet & Coal Stove & Fireplace
  • Commercial, Industrial Oven & Furnace


  • Oven Door & Window Thermal Seals
  • Stove Door & Window Thermal Seals
  • High-Temperature Industrial Packing
  • OEM Equipment Thermal Door Seals
  • OEM Equipment Enclosure Seals

Custom Options

  • Color
  • Stainless Steel Wire Jacket
  • Vermiculite Coating
  • PTFE Coating
  • Silicone Coating
  • Graphite Coating

More Information

Tetraglas® Fiberglass Rope

Tetraglas® rope is constructed of high-quality E-glass fiberglass yarns and remains highly flexible and conformable at continuous operating temperatures up to 1000°F (540°C). Our fiberglass rope is available in knitted soft and dense, twisted, and square braided rope forms. Most Tetraglas® ropes can be coated with vermiculite, PTFE, or graphite, and a stainless steel wire mesh jacket can be added to increase abrasion resistance.

Tetraglas 3000® Silica Rope

Tetraglas 3000® rope is constructed of amorphous silica yarns. Our silica rope is available in knitted, twisted, and square braided rope forms. Tetraglas 3000® rope will not burn and is suitable for use in continuous temperatures to 1800°F (980°C).

Ceramic Rope

Ceramic fiber rope supports the highest continuous operating temperature at 2300°F (1260°C). Our ceramic fiber rope possesses excellent chemical stability as well as strong corrosion and thermal shock resistance. It’s available in knitted, twisted, and square braided rope forms.

Read Our Thermal Protection Product Guide

Need some help navigating your project needs and our technical textile solutions? Browse Davlyn Group’s guide for thermal protection solutions.