High Silica Tubular Knitted Rope | Silica Content >98%
Ultra-Flexible High-Temperature Silica Rope for Dynamic Sealing & Thermal Insulation
High Silica Tubular Knitted Rope (>98% SiO₂) is a premium high-temperature sealing and insulation solution engineered for applications requiring exceptional flexibility, superior compression recovery, and resistance to vibration and thermal cycling.
Manufactured from continuous high-purity silica fibers and formed into a hollow tubular knitted construction, this rope delivers excellent sealing efficiency with reduced material density, making it ideal for demanding industrial environments.
Designed for continuous operating temperatures up to 1000°C and short-term exposure up to 1200°C, high silica tubular knitted rope is widely used in furnace doors, boiler seals, expansion joints, fire doors, and high-temperature movable equipment.
Key Performance Advantages
- Silica Content: >98% (Ultra-High Purity SiO₂)
- Continuous Temperature Resistance: Up to 1000°C
- Short-Term Heat Exposure: Up to 1200°C
- Hollow Tubular Construction: Excellent compressibility
- Superior Flexibility & Elastic Recovery
- Low Thermal Conductivity & Heat Loss
- Non-Combustible, Non-Asbestos & Halogen-Free
The tubular knitted structure allows the rope to compress easily and expand back to shape, ensuring uniform sealing pressure even on uneven or moving surfaces.
Rope Construction & Engineering Benefits
High Silica Tubular Knitted Rope is produced using high-purity silica yarns converted through a controlled leaching process to achieve >98% silica content. The tubular knitted design provides unique engineering advantages:
- Hollow core improves compression recovery
- Reduced installation force compared to solid ropes
- Enhanced sealing performance at lower compression loads
- Excellent adaptability to flanges, doors, and expansion joints
Compared to solid knitted, braided, or twisted ropes, tubular knitted rope offers better sealing efficiency with lighter weight.
Typical Technical Specifications
| Property | Value |
|---|---|
| Product Type | Tubular Knitted Rope |
| Silica Content | >98% |
| Construction | Hollow / Tubular Knitted |
| Diameter Range | 8 mm – 60 mm (custom sizes available) |
| Continuous Temperature | Up to 1000°C |
| Short-Term Temperature | Up to 1200°C |
| Color | White / Off-White |
| Density | Low to Medium |
Industrial Applications
Furnace, Boiler & Kiln Sealing
- Furnace door and access seals
- Boiler inspection port sealing
- Expansion joints with movement
Fire Protection Systems
- Fire door and fire damper seals
- Fire-rated enclosures and partitions
- Passive fire protection assemblies
Foundry & High-Temperature Processing
- Movable equipment sealing
- Thermal sealing in vibration-prone areas
- High-temperature joint sealing
Power, Oil & Gas Industries
- Turbine and exhaust sealing
- High-temperature flanges with movement
- Thermal insulation for dynamic equipment
Optional Enhancements & Treatments
- Graphite impregnation – improved sealing & lubrication
- Vermiculite treatment – enhanced abrasion resistance
- Stainless steel or Inconel wire reinforcement – added mechanical strength
- Low-dust surface finishing – improved handling and clean installation
Standards, Compliance & Quality Assurance
- ASTM E84 – Flame Spread Index
- ASTM C892 – High-Temperature Gasketing
- ISO 9001: Quality Management System
- RoHS & REACH Compliant
- Non-Asbestos & Environmentally Safe
Each batch is supplied with TDS, COA, and full production traceability documentation.
Why Choose Our High Silica Tubular Knitted Rope?
- Guaranteed >98% silica purity
- Superior compressibility and elastic recovery
- Consistent diameter and hollow-core control
- Custom sizes, profiles & reinforcements available
- Trusted global export supply to USA, Europe, Middle East & Asia
FAQs
Tubular knitted rope offers better compression recovery and sealing efficiency at lower compression forces due to its hollow structure.
Yes, it is specifically designed for vibration-prone and movable high-temperature environments.
Absolutely. It is widely used for furnace doors, boiler access points, and expansion joints.
Yes, stainless steel or Inconel wire reinforcement options are available.
Product Tags
Dielectric high silica cloth, low moisture silica fabric, electrical insulation silica cloth, high temperature dielectric fabric, high voltage insulation silica cloth, fire resistant electrical insulation fabric