Dielectric High Silica Fabric
Low Moisture, High-Purity Dielectric Fabric for Electrical & High-Temperature Insulation
Dielectric High Silica Fabric is a specialized woven textile manufactured from high-purity silica fibers (SiO₂ ≥ 96–98%), engineered to deliver excellent dielectric strength, low moisture absorption, and high-temperature resistance.
It is designed for applications where electrical insulation, thermal stability, and material reliability are critical, offering superior performance compared to standard fiberglass fabrics.
This fabric is widely used in electrical insulation systems, RF components, aerospace structures, power equipment, and high-temperature industrial environments.
Key Performance Advantages
- High Silica Content: ≥96–98% SiO₂
- Excellent Dielectric Strength & Electrical Insulation
- Low Moisture Absorption
- Low Dielectric Constant & Low Dielectric Loss
- Continuous Service Temperature: Up to 1000°C
- Low Thermal Expansion (CTE)
- Non-Conductive & Non-Magnetic
- Good Chemical & Oxidation Resistance
- Non-Asbestos & Environmentally Safe
Dielectric high silica fabric maintains stable electrical and insulation performance even under thermal cycling and humid operating conditions.
Fabric Construction & Options
- Plain Weave, Twill Weave, Satin Weave
- Lightweight to heavy fabric constructions
- Heat-cleaned and dielectric-grade processing
- Optional surface treatments for improved resin compatibility
The fabric can be supplied as-woven or further processed for electrical insulation and composite applications.
Typical Technical Specifications
| Property | Value |
|---|---|
| Product Type | Dielectric High Silica Fabric |
| Fiber Composition | High Silica Fiber |
| SiO₂ Content | ≥96–98% |
| Weave Style | Plain / Twill / Satin |
| Thickness | Customizable |
| Areal Weight | 200 – 1200 gsm |
| Continuous Service Temp. | Up to 1000°C |
| Dielectric Strength | High |
| Dielectric Constant | Low |
| Moisture Absorption | Very Low |
| Color | Off-White / Light Brown |
Industrial Applications
Electrical & Power Equipment
- Electrical insulation barriers
- Transformer and motor insulation
- High-voltage insulation components
RF & Electronics
- RF-transparent insulation layers
- Electrical isolation in electronic assemblies
Aerospace & Defense
- Thermal and electrical insulation fabrics
- High-temperature composite backing layers
High-Temperature Industrial
- Furnace and kiln insulation
- Fire protection and thermal barriers
- Expansion joints and insulation blankets
Processing & Customization
- Available in roll form or cut-to-size sheets
- Custom widths, thicknesses, and weaves
- Resin impregnation and coating options available
- Export-grade packaging with documentation
Standards, Compliance & Quality Assurance
- ASTM D150 – Dielectric Properties
- ASTM D257 – Electrical Resistance
- ASTM Thermal Test Standards
- ISO 9001 – Quality Management System
- RoHS & REACH Compliant
Each batch is supplied with TDS, COA, dielectric test data, and full traceability.
Why Choose Our Dielectric High Silica Fabric?
- High-purity silica fibers with consistent dielectric performance
- Low moisture absorption for electrical reliability
- Proven performance in demanding environments
- Custom solutions for electrical and thermal insulation
- Trusted global supplier serving USA, Europe, Middle East & Asia
FAQs
It is processed for lower moisture absorption and higher electrical insulation performance.
Yes, it offers excellent dielectric strength for electrical applications.
Yes, it can be treated for compatibility with epoxy, silicone, and phenolic resins.
Yes, it is completely non-asbestos and environmentally safe.
Product Tag:
Dielectric high silica fabric, electrical insulation silica fabric, low moisture silica cloth, high silica dielectric fabric, RF insulation silica cloth