Dielectric High Silica Twisted Rope
Low-Moisture Twisted High Silica Rope for Electrical & High-Temperature Insulation
Dielectric High Silica Twisted Rope is produced from high-purity silica fibers (SiO₂ ≥96–98%) using a multi-strand twisted construction that delivers excellent dielectric insulation, very low moisture absorption, and reliable thermal resistance.
The twisted structure provides high flexibility, softness, and easy conformability, making this rope ideal for irregular gaps, curved surfaces, and tight sealing areas where electrical insulation and heat resistance are equally critical.
Compared to braided ropes, twisted high silica rope offers greater compressibility and easier installation, while maintaining stable dielectric performance in humid and high-temperature environments.
Key Performance Advantages
- High Silica Content: ≥96–98%
- Excellent Dielectric Strength & Electrical Insulation
- Low Moisture Absorption (Dielectric-Grade Processing)
- High Flexibility & Superior Compressibility
- Low Dielectric Constant & Low Electrical Loss
- Continuous Operating Temperature: Up to 1000°C
- Non-Conductive, Non-Magnetic & RF-Transparent
- Good Thermal Shock & Oxidation Resistance
- Easy Handling & Installation
- Non-Asbestos & Environmentally Safe
Construction Details
- Fiber Type: High-Purity Silica Fiber
- Construction: Multi-End Twisted Rope
- Profile: Round (standard)
- Surface: Soft, flexible, slightly textured
- Reinforcement – Standard: Metal-free (Dielectric Grade)
- Optional Reinforcement: SS304 / SS316 wire (for non-dielectric use only)
Typical Technical Specifications
| Property | Value |
|---|---|
| Product Name | Dielectric High Silica Twisted Rope |
| Silica Content | ≥96–98% |
| Rope Diameter | 4 mm – 50 mm |
| Construction Type | Twisted |
| Continuous Service Temperature | Up to 1000°C |
| Short-Term Temperature | Up to 1200°C |
| Dielectric Strength | High |
| Moisture Absorption | Very Low |
| Electrical Conductivity | Non-Conductive |
| Color | Off-White / Light Brown |
Typical Applications
Electrical & Power Equipment
- Electrical insulation sealing
- High-voltage insulation packing
- Motor, generator, and transformer insulation
RF & Electronics
- RF-transparent insulation
- Electrical isolation in sensitive assemblies
High-Temperature Industrial
- Furnace and kiln door sealing
- Thermal expansion gap filling
- Heater and oven insulation
Aerospace & Defense
- Thermal-electrical insulation
- Fire-resistant sealing in high-temperature zones
Packaging & Supply Options
- Supplied in coils or cut lengths
- Custom diameters and twist density
- Export-grade moisture-protected packaging
- Bulk and project-specific supply available
Quality, Standards & Compliance
- ASTM D150 – Dielectric Properties
- ASTM D257 – Electrical Resistance
- ASTM Thermal Performance Standards
- ISO 9001 Certified Manufacturing
- RoHS & REACH Compliant
Each shipment includes TDS, COA, dielectric test reports, and full batch traceability.
Why Choose Our Dielectric High Silica Twisted Rope?
- High-purity silica fibers with dielectric-grade treatment
- Low moisture absorption for stable electrical performance
- Highly flexible rope for complex sealing areas
- Consistent quality with export documentation
- Trusted global supplier for power, RF & high-temperature industries
FAQs
Twisted rope is preferred when higher flexibility and compressibility are required.
Yes, it provides excellent dielectric strength and non-conductive performance.
No, it retains the same high-temperature performance as other silica rope constructions.
Yes, it is completely non-asbestos and environmentally safe.
Product Tag:
Dielectric high silica twisted rope, electrical insulation silica rope, low moisture silica twisted rope, high temperature dielectric rope, RF transparent insulation rope