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How Si-COAT RTV Silicone HVIC Functions (5 of 8)

At this point, when moisture from the environment collects on the surface of the contaminated insulator, the contamination particles are isolated from the water droplets. This fact, combined with the very high dielectric strength of LMWS means an electrically conductive solution cannot form along the surface of the insulator.

Figure 4: Water droplets are isolated and electrically insulated from contaminants by virtue of Si-COAT’s LMWS

If rainfall is heavy, the contaminants will be washed away. In some instances, the monolayer of LMWS will also be washed away. In this situation, the LMWS from within the body of the Si-COAT layer again diffuses to the surface to regenerate the monolayer.

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