Electrogard SiCoat
ELECTROGARD® SiCOAT is a premium RTV silicone–based high voltage insulation coating developed to enhance the safety and reliability of electrical insulation systems. It forms a seamless, strongly bonded protective layer on glass, porcelain, and polymer insulators, delivering long-lasting ultra-hydrophobicity, excellent dielectric strength, and superior UV resistance. By effectively suppressing leakage currents and minimizing dust- and pollution-related flashover risks, ELECTROGARD® SiCOAT helps extend the service life of high-voltage assets while ensuring safer and more reliable plant operations.
Product Description
Benefits:
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High dielectric strength with excellent insulation resistance
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Strong bonding to multiple substrates including glass, porcelain, HTV silicone, and other polymer insulators
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Excellent arc resistance
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High resistance to damage caused by corona discharge
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Seamless, non-porous, and hygienic surface finish
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Can be applied over existing HVIC after proper surface preparation
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Resistant to acids, alkalis, industrial pollutants, and dust such as fly ash, carbon black, cement dust, and sand particles
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Single-component system that is easy to apply
Application Areas:
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Suitable for use in both AC and DC systems
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Ideal for substation equipment including transformers, switchgear, bushings, and similar high-voltage components
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Widely used in power infrastructure such as transmission lines across all voltage levels, air-core reactors, and high-voltage machines
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Suitable for railways and other demanding high-voltage electrical applications
Technical Properties:
- Dielectric Strength: >25 KV/mm
- Volume Resistivity, ASTM D257 >1.0X10^14 ohm.cm
- Tracking & Erosion Test, (IEC 60587): Class 1A 4.5kV
- Hydrophobicity Recovery Test: HC1-HC2
- Desired Thickness: 300-500 microns DFT
- Coverage: 1.0-1.4 m2/Kg for 300 microns
- Colour Available: Light Grey, White, Custom colours may be available on requirements.