Dielectric High Silica Sleeve
Low-Moisture High Silica Sleeve for Electrical & Extreme-Temperature Insulation
Dielectric High Silica Sleeve is manufactured from high-purity silica fibers with silica content ≥96–98%, engineered specifically to provide excellent dielectric strength, very low moisture absorption, and superior thermal resistance.
Designed for electrical insulation, cable protection, and RF-transparent thermal shielding, this sleeve offers stable electrical performance even in humid and high-temperature environments. It is an ideal solution where non-conductivity, heat resistance, and dimensional stability are critical.
Key Performance Advantages
- High Silica Content: ≥96–98%
- Excellent Dielectric Strength & Electrical Insulation
- Dielectric-Grade Low Moisture Absorption
- Continuous Operating Temperature: Up to 1000°C
- Low Dielectric Constant & Low Electrical Loss
- Non-Conductive, Non-Magnetic & RF-Transparent
- Flexible, Lightweight & Easy to Install
- Resistant to Thermal Shock, Oxidation & Aging
- Non-Asbestos & Environmentally Safe
Construction Options
- Braided High Silica Sleeve
- Knitted High Silica Sleeve
- Tubular Braided High Silica Sleeve
- All constructions available in metal-free dielectric grades
- Optional SS304 / SS316 reinforcement for non-dielectric applications
Typical Technical Specifications
| Property | Value |
|---|---|
| Product Name | Dielectric High Silica Sleeve |
| Silica Content | ≥96–98% |
| Construction | Braided / Knitted / Tubular Braided |
| Inner Diameter | 5 mm – 100 mm (custom sizes available) |
| 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 Systems
- Electrical cable insulation
- High-voltage wire protection
- Transformer and switchgear insulation
RF & Electronics
- RF-transparent cable protection
- Electrical isolation in sensitive electronics
High-Temperature Industrial
- Thermal protection for hoses and wires
- Furnace and heater cable insulation
- Fire-resistant sleeving
Aerospace & Defense
- Thermal-electrical insulation sleeves
- Fire-protection for wiring harnesses
Packaging & Supply Options
- Supplied in continuous lengths or cut sizes
- Custom diameters, wall thickness, and construction
- Moisture-protected, export-grade packaging
- OEM, 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 data, and full batch traceability.
Why Choose Our Dielectric High Silica Sleeve?
- High-purity silica fibers with dielectric-grade processing
- Low moisture absorption for reliable electrical insulation
- Flexible and durable for demanding environments
- Custom-engineered solutions with global export support
- Trusted supplier to power, electronics, aerospace & industrial markets
FAQs
Low moisture processing and high silica purity ensure stable electrical insulation.
Yes, it provides excellent dielectric strength and non-conductive performance.
Standard versions are metal-free; reinforced options are available on request for non-dielectric use.
Yes, it is completely non-asbestos and environmentally compliant.
Product Tag:
Dielectric high silica sleeve, electrical insulation silica sleeve, low moisture silica sleeve, high temperature dielectric sleeve, RF transparent insulation sleeve