HVIC Cleaning coating for high voltage insulators

Description

The excellent performance of Midsun^®‘s HVIC RTV (Room Temperature Vulcanizing) silicone rubber coating is due to its hydrophobicity and unique adhesion agents, with protective properties against flashover and electrical discharges. The hydrophobicity of the coating prevents the build-up of contaminants on the surface. It offers a long-term solution to breakdown problems. We offer turnkey solutions, which include the application of the coating to insulators installed by an OSHA-certified Midsun^® staff member.

Midsun’s HVIC silicone resists UV radiation, temperature variations, corrosive environments and aluminium hydroxide pitting caused by arcing in dry strips. This coating is mainly used on polluted sites such as steelworks, cement works and quarries, as well as coastal and petrochemical sites.

The HVIC can be used to eliminate or reduce the frequency of the following operations:

• Regular cleaning of insulators
• Periodic lubrication
• Replacement of components damaged by electrical discharges
• Repair of the silicone coating or core in the case of composite insulators

Description of Midsun^® ‘s HVIC coating:

• Flash point: 18°C
• Dielectric strength: 35.9 kV/mm
• Dissipation factor at 100 Hz: 0.021
• Breaking and erosion resistance at 2.5 kV/min: 1000 hours
• Dielectric constant at 100 Hz: 3.85
• Relative density: 1.28
• Viscosity 3.5-5.5 Pa*s
• Coat thickness: 0.4 mm minimum

We offer a range of packaging options to suit your needs: aerosol cans, 3.7-litre jars and 19-litre buckets. Note that each 3.7 L can covers 8m² to 11m² with a two-coat application depending on the thickness of the film.

Midsun^®‘s HVIC coating is guaranteed against electric arcs as soon as leakage currents are detected, when it has been applied by Midsun^® Group personnel or under their direct supervision.

Contact us with details of your site and project requirements.

Additional information