Deposits Of Combustion

SPARK PLUGS MUST WITHSTAND DEPOSITS OF COMBUSTION

Spark plugs must be designed so that they resist conductive deposits of combustion.

These deposits are burnt when the temperature of the insulator nose is higher that 450°C (self-cleaning stage).

The warming speed of the insulator nose to the self-cleaning temperature is determined by the appropriate heat range,

appropriate structure of the insulator nose and by proper material of the center electrode.