The three most typical damages in insulator breakdowns are:

- Insulator destruction. This is a non-important problem in case of support insulators, but if it is a transformer bushing insulator or a porcelain insulator of a switchgear, its destruction carries serious consequences.
- Process interruption. The interruption time derived from reparation increases if there are no available supplies.
- Damages to equipment near an insulator which explodes. The high-temperature remains of the damaged insulator are projected against close elements.

Insulator maintenance is fundamental to avoid the above-mentioned situations.

The solution applied by S.T.&M. consists in a periodic insulator cleaning procedure, followed by the application of a discreet-thickness cover made of silicones specific for this purpose.

Silicones used during siliconization process are completely environmentally friendly.