INSULATOR
The most important component of the spark plug
1) Electrically separates the electrodes
2) Regulates heat transfer from the combustion chamber
3) Fixes the centre electrode and terminal pin
4) Resists chemical substances in the combustion chamber
BRISK TIP
BRISK makes insulators from high quality ceramic materials with a high content of Al2O3 and high insulation strength.
Sectional view of the spark-plug