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Introduction to Insulating Silicone Grease Industry
2025-07-01
Silicone grease provides high dielectric strength, preventing electrical leakage and short circuits in high-voltage equipment.
Dielectric grease is the priority selection for the electrical industry.
Let's learn more about Silicone insulating grease.
Electrical and Dielectric Properties
| Property | Value | Test Method | Conditions |
|---|---|---|---|
| Dielectric Strength | |||
| AC Breakdown Voltage | >35 | ASTM D149 | kV/mm |
| DC Breakdown Voltage | >40 | IEC 60243-1 | kV/mm |
| Impulse Breakdown Voltage | >45 | IEC 60243-3 | kV/mm |
| Resistivity | |||
| Volume Resistivity @ 25°C | >1×10¹⁵ | ASTM D257 | Ω·cm |
| Volume Resistivity @ 150°C | >1×10¹³ | ASTM D257 | Ω·cm |
| Surface Resistivity @ 25°C | >1×10¹⁴ | ASTM D257 | Ω |
| Dielectric Properties | |||
| Dielectric Constant @ 1 kHz | 2.7 ± 0.1 | ASTM D150 | - |
| Dielectric Constant @ 1 MHz | 2.6 ± 0.1 | ASTM D150 | - |
| Dissipation Factor @ 1 kHz | <0.001 | ASTM D150 | - |
| Dissipation Factor @ 1 MHz | <0.002 | ASTM D150 | - |
| Tracking and Erosion | |||
| Comparative Tracking Index (CTI) | >600 | IEC 60112 | V |
| Proof Tracking Index (PTI) | >600 | IEC 60112 | V |
| Erosion Resistance | Class 1A | IEC 60587 | - |
Performance Characteristics
1.Excellent Dielectric Performance
FRTLUBE insulation silicone grease maintains excellent dielectric properties across wide temperature and frequency ranges. Volume resistivity remains above 10¹² Ω·cm even at elevated temperatures, ensuring reliable insulation performance.
2.Good Thermal Stability
Exceptional thermal stability from -65°C to +200°C with minimal property degradation.
3.Excellent Material Compatibility
Excellent compatibility with most plastics, elastomers, and metals.
4.Outstanding Sealing and Waterproof Properties
Widely used in lubrication and protection of valves, O-rings, waterproofing, and insulating sealing locations.
Applications
Electrical and Electronic Applications
●High Voltage Insulators: Outdoor transmission line insulators, substation equipment
●Cable Joints and Terminations: Underground power cables, telecommunications
●Transformer Bushings: Power transformers, distribution transformers
●Switch Gear: Circuit breakers, disconnect switches, load break switches
●Electrical Connectors: High voltage connectors, bus bar joints
●Spark Plug Boots: Automotive and marine ignition systems
Dielectric Silicone Grease -Insulation Performance Test Data
Conclusion
The above insulating grease product data mainly summarizes and displays typical industry introductions. If your industry or equipment has special requirements, please contact our lubrication technology team and we can provide customized lubrication solutions.