High Voltage Silicone for Electrical Insulation Applications
Our High Voltage Silicone Rubber delivers outstanding electrical insulation, thermal stability, and dielectric strength for critical applications in power transmission, electronics, and high-voltage equipment. It ensures long-term safety and performance in demanding environments.
Key Highlights
- High-voltage silicone with excellent dielectric strength
- Reliable from –60°C to +250°C under thermal and electrical stress
- Resistant to corona discharge, UV, ozone, and weathering
- Custom flame-retardant and insulation grades available
ISO/TS 1694
ISO 9002
ISO 3808
ISO 9001
ISIRI 4267-2
ISO 17025
10993-5
10993-10
10993-4
Pharma
ASTM F756
| Property | WIC*** | Test Methods | Notes |
|---|---|---|---|
| Appearance/Colors | Black, gray, red; custom colors available | Supports color coding in industrial settings | |
| Temperature Range | -60°C to +200°C | Wide range for extreme temperature conditions | |
| Specific Gravity (CM3) | |||
| Compression set (22h/ 175°c) (%) | DIN 53 517 | ||
| Hardness (Shore A) | 50 – 80 | DIN 53 505 | Rigid yet resilient for protective insulation |
| Tensile Strength (MPa) | 7 – 11 MPa | DIN 53 504 | Strong enough for demanding electrical environments |
| Tear Strength (N/mm) | ASTM-D 624 die B | ||
| Elongation at Break (%) | 250 – 500% | DIN 53 504 | Maintains flexibility under mechanical and thermal stress |
| Rebound resilience (%) | DIN 53 512 | ||
| Volume resistivity (Q-cm) | DIN 53 482 | ||
| Dielectric Strength (kV/mm) | > 25 kV/mm | DIN 53 481 | Excellent insulation for high-voltage applications |
| Dielectric Constant (E2 50 HZ) | DIN 53 483 | ||
| Dissipation factor (tan 6/1000 HZ) | DIN 53 483 | ||
| Crosslinking agent | |||
| Curing conditions |
The information contained herein is believed to be accurate. Users should verify the suitability of the product for their application. Wire Iran is not responsible for improper use.
Features & Benefits
- Prevents arcing and current leakage with strong dielectric integrity
- Stable under extreme temperature and electrical load
- Exceptional UV and outdoor durability
- Complies with safety and flame-retardant standards
- Customizable for insulation, flame, or mechanical performance
- Flame-retardant, low-smoke grades available on request
Typical Applications
- Electrical Insulation: HV cables, terminal boots, dielectric sleeves
- Power Electronics: Gaskets, transformer covers, arc barriers
- EV Systems: Battery seals, HV connectors, cable sheaths
- Aerospace & Telecom: Insulating shields, surge boots, harness covers
Compliance & Quality
- Meets FDA and ISO 10993 standards –ensuring safety and reliability.
- ISO 9001 certified manufacturing
- Batch-tested for strength and durability
- Fully traceable batch documentation
Processing & Handling
- Suitable for HTV extrusion, molding, and calendaring
- Compatible with platinum and peroxide curing systems
- Cure at 120–200°C per catalyst type; post-cure recommended
- Keep tools clean to avoid metallic contamination or arcing
Packaging & Storage
- Supplied in 20 kg PE-lined cartons or boxes
- Store sealed below 30°C in a cool, dry, ventilated area
- Avoid sunlight and humidity to preserve dielectric quality
- Shelf life: 12 months from manufacture date
Related Products
High Tear Strength Silicone
Durable and resistant to tearing, engineered to withstand the most demanding applications.
Low Hardness Silicone
Flexible and soft engineered for applications requiring gentle compression, cushioning, or a soft touch.
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