HVIC Coatings & Service for High Voltage Insulators and Bushings
Steel Structures - Transformers - Transmission Towers


Reasons to Coat
For long-term, cost effective maintenance, only silicone coatings provide a virtually maintenance-free system to prevent excessive leakage current, tracking, and flashover. Silicone is not affected by ultraviolet light, temperature, or corrosion. Our Siltech 100HV high voltage insulator coating product presents a smooth finish with superior tracking resistance. Because the coating is highly water-repellent, contaminants cannot film out over the surface.
Siltech Silicone Coatings can eliminate or reduce:

Regular insulator cleaning.
Periodic re-application of greases.
Replacement of components damaged by flashover.


Our silicone coatings have proven effective in all types of conditions, from salt-fog to fly ash. They are also useful to restore burned, cracked, or chipped insulators. May be used on precipitators up to 500°F. Our Installation and Service group utilizes state-of-the-art coating technology with proven process controls to assure minimal material loss and fast service. We offer coating services and/or sale of material and applications worldwide. 

We provide a full line of silicone coatings and, if needed, complete turnkey application services. This includes insulators, transmission towers and coolant water inlets. As technology changes, our Installation and Service group is moving forward to develop new coatings to solve critical challenges. Siltech coating products have provided an innovative new way of protection, proven better than today's conventional coating. They are a single-component, self-priming coating that solves critical corrosion and maintenance requirements. They provide excellent weathering protection against salt, chemicals and damage from ultraviolet light.

 - Links to Siltech Coating Products Tech Data sheets:

Siltech 100 HV  - High Voltage insulator coating is designed to resist tracking and flashover on high voltage insulators.
Siltech 200 GP - General Purpose protective coating for weathering steel and concrete. It provides excellent protection for transmission towers.

- For further information:

IEEE White Paper "RTV Silicone Rubber Coatings for Outdoor Insulators"



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