Twisted Sealing Cords
High-Temperature Solutions up to 1260°C
Our twisted sealing cords are designed for demanding high-temperature sealing applications in industrial and commercial environments.
Made by twisting multiple yarns together, these ropes offer exceptional strength, flexibility, and durability, making them ideal for furnaces, stoves, boilers, and refractory equipment.
With temperature resistance up to 1260°C (2300°F) and excellent chemical durability, our products are the perfect choice for industries requiring safe, asbestos-free sealing solutions.
- Material
- E-Glass fiber, HT-Glass fiber | Continuous filament silk fiber | Alcaline Earth Silicate fiber | Silicate staple fiber | Aluminium silicate fibre
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Temperature resistance
Max. Application temperature, depending on material, up to 1260°C.
Thermal conductivity
Low thermal conductivity, non-flammable materials.
Stable & Durable
Chemical resistance, mechanical stability and flexibility.
Key Features of Our Twisted Ropes
Heat resistant up to 1260°C (2300°F)
Asbestos-free and safe to handle
Excellent thermal insulation with low thermal conductivity
Non-combustible materials for maximum safety
Flexible and easy to install or cut to size
Available in various diameters and lengths
Optional coatings: Graphite, PTFE, Silicone, Vermiculite
Long-lasting performance with minimal maintenance
Expert tip:
Choose Alumino-silicate twisted ropes for extreme temperatures and continuous operation in industrial furnaces or foundries.Applications of Twisted Sealing Cords
Our twisted sealing cords are used across a wide range of industries and applications:
- Oven and stove manufacturing: sealing oven doors and fireplace doors
- Industrial furnaces & foundries: sealing and insulation in extreme heat environments
- Refractory systems: expansion joints and high-temperature gaps
- Chemical industry: resistant to aggressive gases and chemicals
- Power generation: boilers and turbines
- Ventilation systems: sealing smoke and air ductsThese ropes are ideal for both heavy-duty industrial use and residential applications such as fireplace doors.
Advantages at a Glance
- High-performance sealing for extreme temperatures
- Asbestos-free for safety and compliance
- Easy to handle, cut, and install
- Available in standard and custom dimensions
- Reduces energy loss and improves system efficiency
- Long-term durability, even under heavy mechanical stress
Why Choose Our Twisted Sealing Cords
High-quality, certified products
Expert advice for material selection
Fast delivery and reliable service
Customized solutions for industrial applications
Sustainable and asbestos-free materials
Our mission: Providing safe and efficient sealing solutions for the toughest conditions.
Storage and Handling Tips
Store in a cool, dry place, away from direct sunlight
Keep away from moisture to prevent material degradation
Inspect regularly before installation for visible damage
Use proper cutting tools for clean edges and precise fitting
Request a Quote Today
Looking for high-temperature twisted sealing cords for your project?
Get in touch with our team for expert advice and a customized offer.TECHNICAL DETAILS
Product | Article Kaldera 550 Kaldera 750 Kaldera 1000 Kaldera 1050 Kaldera 1100 Kaldera 1260 Material E-Glassfibre HT-Glassfibre Continuous filament silicate fibre Alkaline earth silicate fibre Silicate staple fibre Aluminium silicate fibre Color White Blue White, Ivory Green White White Max. Apliccation-temp. 550°C 700°C 1000°C 1050°C 1000°C 1260°C Melting point 1200°C 1200°C 1550°C 1260°C 1550°C 1790°C Fire behaviour Non-flammable Non-flammable Non-flammable Non-flammable Non-flammable Non-flammable Chemical resistance good good good good good good TESPE Tenute Speziali
Since TESPE was founded in 1993, they have specialized in the production of technical textiles and industrial seals for high temperatures. We use the latest materials and production techniques to guarantee the highest quality and high performance across the entire product range.
An absolutely reliable technical-commercial partner and not just a simple product supplier, always using experience and professionalism to guarantee the best consulting services, technical support, punctuality and competitiveness.
Frequently Asked Questions (FAQ) – Twisted Sealing Cords
Are twisted sealing cords asbestos-free?
Yes, our twisted sealing cords are 100% asbestos-free and fully safe for use in industrial, commercial, and residential environments. They comply with current health, safety, and environmental standards.
What temperature ranges are twisted sealing cords suitable for?
Depending on the material, our twisted cords are rated from 550 °C (E-glass) up to 1260 °C (alumino-silicate fiber). Please review the technical data to select the right cord for your application.
Where are twisted sealing cords typically used?
Our twisted sealing cords are widely used in stove and oven doors, industrial furnaces, plant engineering, the chemical industry, and fire protection. They are ideal for expansion joints, smoke and air dampers, and as seals for heating equipment.
Which materials are available for twisted sealing cords?
We offer twisted cords in several materials, including:
- E-glass fiber – up to 550 °C, flexible and cost-effective
- HT-glass fiber – up to 750 °C, robust and heat-resistant
- Silicate fiber – up to 1050 °C, highly chemical-resistant
- Alumino-silicate fiber – up to 1260 °C, maximum temperature resistance
Do you offer custom sizes or special coatings?
Yes, our twisted cords are available in custom dimensions and with various coatings, such as:
- Graphite – for smoother installation and increased durability
- PTFE – for excellent chemical resistance
- Silicone – for improved flexibility and moisture protection
- Vermiculite – for additional insulation performance
On request, we manufacture tailored solutions for specific applications.
How should twisted sealing cords be stored?
Store cords in a cool, dry place and protect them from direct sunlight and moisture. This preserves flexibility and keeps the material in top condition over time.
How often should the cords be inspected or replaced?
Service life depends on operating temperatures and mechanical stress. For regular use, we recommend inspecting at least once per year and replacing cords showing wear or damage to prevent failures and safety risks.
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Downloads
Data sheet Kaldera 550
Product properties, typical applications and availabilities.
Data sheet Kaldera 750
Product properties, typical applications and availabilities.
Data sheet Kaldera 1000
Product properties, typical applications and availabilities.
Data sheet Kaldera 1050
Product properties, typical applications and availabilities.
Data sheet Kaldera 1100
Product properties, typical applications and availabilities.
Data sheet Kaldera 1260
Product properties, typical applications and availabilities.
Hoffmann product catalog
Refractory | Seals | Foundry supplies | Conveyor chains | Chesterton
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K. Hoffmann GmbH
For over 40 years, we have been manufacturing high-temperature-resistant boards, pressed, and milled molded parts from Vermiculite.
Due to its special properties, vermiculite is particularly suitable as a lightweight insulation material and is characterized by its temperature resistance up to 1100 °C.
If you are also looking for a sustainable insulation material without health concerns, then contact us.
