Ceramic Fiber Rope

Twisted ceramic fiber rope for high-temperature sealing, gasketing, and expansion joint packing up to 1260℃.

Diameter: 6-50mm
Density: 500 ±15 kg/m³
Temperature: Up to 1260℃
Reinforcement: Fiberglass / Stainless steel wire

Overview

✦ Low thermal conductivity
✦ Good flexibility
✦ Thermal shock resistance
✦ Good chemical stability

Made from high-quality ceramic fiber yarn twisted into strong, flexible rope with various reinforcement options including fiberglass or stainless steel wire.

What Is Ceramic Fiber Rope?

Ceramic fiber rope is a twisted or braided cord of ceramic-fibre yarn (with optional fibreglass or stainless-steel-wire reinforcement) used for sealing, gasketing and expansion-joint packing up to refractory temperatures.

Key Technical Specifications

Property	Value
Maximum service temperature	classification 1260°C; service up to 1100°C
Density	≈500 kg/m³ (as rope)
Thermal conductivity	0.10–0.18 W/(m·K) (as packed cord)
Standard thickness	diameter 6–50 mm
Standard dimensions	coils 5–25 m typical
Fire classification	Non-combustible (ceramic fibre, asbestos-free)
Composition	high-purity alumino-silicate (Al₂O₃ + SiO₂) blown fibre, no organic binder
Standards	ASTM C892, ASTM C1086, ISO 10635, EN 10964

Properties & Advantages

Flexible, reusable high-temperature seal
Resists thermal cycling and flame impingement
Wire-reinforced grades add strength
Low heat storage, asbestos-free
Stable in oxidising atmospheres

Typical Applications

Door and access-gasket packing
Expansion-joint and duct seals
Boiler and furnace sealing
Pump and valve stem packing

Installation & Handling

Pack into the joint and compress lightly; for moving or vibrating joints use the wire-reinforced grade and secure the ends to prevent unravelling.

Standards & Compliance

Manufactured to ASTM C892, ASTM C1086, ISO 10635, EN 10964 and controlled under a documented quality system. Supplied by a manufacturer holding ISO 9001, CE and SGS certifications, exporting high-temperature insulation to 60+ countries since 1982.

Why Specify This Product

Combines stable high-temperature performance with straightforward on-site fabrication. The material is asbestos-free, chemically stable in neutral and oxidising atmospheres, and supplied with full technical data sheets to support specification and inspection. Supplied by a manufacturer holding ISO 9001, CE and SGS certifications, exporting high-temperature insulation to 60+ countries since 1982.

Manufacturer & Supplier

Rosetexwool is a ceramic fiber rope manufacturer and supplier serving more than 60 countries since 1982. Every ceramic fiber rope is produced under a documented quality system certified to ISO 9001, CE and SGS, with batch-level traceability from raw material to finished product.

What our manufacturing capability covers:

In-house melting, fibre-forming and finishing lines for consistent grade and density
Dimensional, density and thermal checks against ASTM C892, ASTM C1086, EN 10964
Asbestos-free, low-impurity formulations verified by incoming and outgoing inspection
Standard and custom sizes, OEM/ODM grades, and cut-to-size supply for project quantities

For quotations, lead times or technical data sheets, contact our team with your specification and target service temperature. Explore the ceramic fiber insulation hub for the full range, or read the ceramic fiber insulation buying guide for selection support.

Related Ceramic Fiber Products & Alternatives

ceramic fiber bulk — Loose bulk fibre supplied for filling cavities and expansion joints, and as the raw material for vacuum-formed shapes and ceramic fibre textiles.

ceramic fiber special shaped — Vacuum-formed shapes produced to your drawing, so burner blocks, ladle covers and complex furnace geometries arrive ready to fit.

high density calcium silicate board — Ultra-high density board above 500 kg/m³ for applications where the insulation also has to carry mechanical load.

For the full ceramic fiber range, temperature grades and density options, see our ceramic fiber insulation guide.

For adjacent material options across temperature and application ranges, explore our rock wool insulation hub.

For the wider selection logic behind this product, see the ceramic fiber rope sealing and gasketing applications.

Part of the Ceramic Fiber product family.

Key features

✓ Low thermal conductivity
✓ Good flexibility
✓ Thermal shock resistance
✓ Good chemical stability
✓ Easy to install and replace

Typical applications

High-temperature door seals
Expansion joint packing
Flange gasketing
Pipe and cable wrapping

Technical specs

Diameter: 6-50mm
Density: 500 ±15 kg/m³
Temperature: Up to 1260℃
Reinforcement: Fiberglass / Stainless steel wire
Asbestos: 100% Non-Asbestos

Last updated: October 5, 2026

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Frequently asked

What temperature can ceramic fiber insulation withstand? +

Ceramic fiber insulation withstands temperatures from 1100°C to 1430°C, depending on the grade. Standard (ST) and High-Purity (HP) grades are rated for 1260°C, while High-Alumina (HA) handles 1360°C and Zirconia (HZ) reaches 1430°C. Always match the grade to your specific operating temperature.

What are the differences between COM, ST, HP, HA, and HZ grades? +

The grades differ mainly in alumina (Al₂O₃) content and temperature rating. COM (1100°C) is the economy grade. ST (1260°C) is the standard industrial grade. HP (1260°C) offers higher purity with lower shot content. HA (1360°C) has higher alumina for superior thermal stability. HZ (1430°C) contains zirconia for the highest temperature resistance.

Is ceramic fiber insulation safe? +

Yes. Our ceramic fiber products are 100% asbestos-free and manufactured to international safety standards. They are classified as non-carcinogenic under EU Directive 97/69/EC. We recommend standard PPE (gloves, dust mask) during handling, as with any fibrous insulation material.

How is ceramic fiber blanket installed? +

Ceramic fiber blanket can be cut to size with a utility knife and secured using high-temperature anchors, pins, or stud welding. For furnace linings, a layered installation is recommended. For pipe insulation, wrap and secure with stainless steel bands. Full installation guidance and technical support are provided with every order.

What are the typical applications for ceramic fiber products? +

Ceramic fiber is widely used in industrial furnaces, kilns, boilers, petrochemical heaters, power generation equipment, incinerators, and building fire protection systems. It is ideal for backup insulation, expansion joints, door seals, and high-temperature gaskets.

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