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Midsun HVIC being applied on an insulator with a spray

MIDSUN HVIC

RTV COATING 
FOR HIGH VOLTAGE INSULATORS 

A range of RTV silicone coatings for superior flashover protection in highly contaminated areas

HOW TO AVOID FLASHOVERS ON HIGH VOLTAGE INSULATORS?
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A high voltage insulator with a contaminated surface will lead to pollution-induced flashovers. There are preventive methods such as live line washing, design modification or the application of silicone grease, but none of them has shown long-term protection as the RTV high voltage insulator Coating, also known as HVIC.

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Power interruptions due to flashovers on high voltage insulators mean economical damages, electrical accidents, production loss, damage of the expensive electrical equipment or even accidents involving humans.

 

Using RTV coating will guarantee at least 15 years of insulator protection.

HOW DOES MIDSUN HVIC ELIMINATES FLASHOVERS?
 

Midsun’s High Voltage Insulator Coating will encapsulate all contaminants, including salt, coal, industrial pollutants and sand, avoiding costly power interruptions due to excessive leakage current.

 

MIDSUN HVIC is being used by major electrical utilities in the world and is constantly being tested by high voltage laboratories following the required international standards. 


The product has shown outstanding results when it comes to resisting corona, tracking and erosion, adherence, among others. Its main feature is hydrophobicity recovery and it remains intact even after 15 years in service in the field.

THE MAIN FEATURES OF MIDSUN HVIC
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  • Long-term water repellency (hydrophobicity)

  • High resistance to arcing and corona

  • Resistance to atmospheric and chemical degradation

  • Ultraviolet light resistance

  • Suppression of leakage current, discharges and pollution flashover

  • Non toxic and environmental friendly material

  • High resistance to air, airborne pollutants, rain, humidity, etc.

COATINGS SELECTION GUIDE
  • Midsun HVIC w/Quartz Silica

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  • Midsun HVIC w/ATH

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  • Midsun HVIC w/Quartz Silica – Naptha

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  • Midsun HVIC Solventless VOC

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FAQs

What is RTV HVIC?

RTV High Voltage Insulator Coating Is a one-part room temperature vulcanising (RTV) silicone coating providing long term, maintenance free, flashover protection of high voltage insulators in polluted environments, with high resistance to corona, ultraviolet light, water erosion, atmospheric and chemical degradation.

How does RTV HVIC exactly work?

RTV insulator coating is a one part hydrophobic, UV resistant coating. Its hydrophobic surface prevents water filming and encapsulates the pollution, avoiding the ability of the contaminant to combine with water to form an ionic solution, therefore preventing leakage current, tracking and flashovers caused by contamination.

Can RTV HVIC be applied to any voltage network?

Yes, Midsun RTV High Voltage Insulator Coating was formulated to resist any kind of voltage. It can be used on 110kV, 220kV, 400kV, 500kV and even 700kV networks.

What are the minimum and maximum temperatures RTV HVIC resists?

Midsun RTV High Voltage Insulator Coating resists temperatures between -40°C and 250°C.

What is the shelf life of RTV HVIC?

RTV High Voltage Insulator Coating has a shelf life of 24 months after the date of manufacture.

How can RTV HVIC be stored?

The product is flammable and may be ignited by heat, sparks or flames, therefore it needs to be stored out of the sun, under dry conditions and away from heat sources.

Does RTV HVIC from Midsun come with a warranty?

Yes, the High Voltage Insulator Coating from Midsun comes with a 10 years warranty.

Where is RTV HVIC produced?

The High Voltage Insulator Coating from Midsun is made in the USA.

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