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Proper Protection for Electrical Insulators

MOLYKOTE® 3099 HVIC Compound

MOLYKOTE® 3099 HVIC Compound is a high-performance lubricant specifically designed for high-voltage electrical insulators. This innovative product developed by DuPont offers a range of benefits for those who need to maintain and protect electrical insulators.

Protecting High-Voltage Insulators 

Electrical insulators are essential components in electrical systems, as they insulate conductors and prevent electrical flow from escaping. Insulators can be made of glass, ceramic, rubber, or any other nonconductive material. The purpose of electrical insulators is to physically separate electrical components and keep electrical energy flowing where it needs to go.

It's essential to apply a compound lubricant like MOLYKOTE® 3099 HVIC Compound to ensure that high-voltage insulators perform their best. High-voltage insulators face various environmental challenges, such as exposure to wind, rain, sunlight, and extreme temperatures, which can cause them to degrade over time. Applying a compound lubricant helps protect insulators from these challenges and prolong their useable lifespan.

How to Properly Lubricate an Electrical Insulator 

  1. Clean and dry the surface of the electrical insulator thoroughly
  2. Apply MOLYKOTE® 3099 HVIC Compound to the surface of the electrical insulator. This can be done using a brush, roller, or spray.
  3. Ensure complete surface coverage, allowing the compound to reach every nook and cranny. 
  4. Inspect the surface of the electrical insulator to ensure that MOLYKOTE® 3099 HVIC Compound has been applied properly and there are no missed areas.
  5. Repeat the application process, if necessary, until the desired level of lubrication and protection is achieved.

It is also important to regularly inspect the surface of any electric insulator surfaces to ensure there is no wear, damage, or gaps in lubricant coverage that can prohibit the protective performance of the compound. Similarly, it is important to be aware of the guidelines for storage and shelf life of the product to ensure optimal performance. 

Why Use a MOLYKOTE® Compound?

MOLYKOTE® 3099 HVIC Compound

This compound is an easy-to-use, high-quality solution for robust protection of electrical insulators and other electronic components.  This product is not stringy and provides superior surface adhesion for complete insulator coverage.  

Base Oil Silicone based
NLGI Grade 2-3
Dielectric Constant @ 100 Hz -- (3.88)
@ 1000 Hz -- (3.86)
Dissipation Factor @ 100 Hz -- (0.0148)
@ 1000 Hz -- (0.0066)
Volume Resistivity 1.46 x 1013 ohm-cm

FAQ Section

Q: Can MOLYKOTE® 3099 be used on other electrical components besides insulators?

A: Yes, MOLYKOTE® 3099 HVIC Compound can be used successfully on a wide variety of electrical components including metal on rubber interfaces, O-ring seals, glass and wire.


Q: How does MOLYKOTE® 3099 compare to other lubricants?

A: MOLYKOTE® 3099 HVIC Compound is a silicone-based lubricant that provides superior dielectric strength, excellent oxidation resistance, and high film strength compared to other lubricants.

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