Spark plug insulators

Our insulators are an excellent choice for use as feedthroughs and spacers, as well as insulators in harsh environments.

Made in various shapes and sizes, they can be produced in a variety of materials, depending on the degree of insulation required.

One of the most widely used materials for this type of application is alumina. The main characteristics of this material are thermal resistivity, electrical insulation, hardness, chemical stability and wear resistance.

If a lower degree of insulation is required, insulators can also be made from materials called silicates.

These materials, while relatively cheaper, have relatively good strength and hardness. They have good thermal shock resistance, low thermal expansion values, good mechanical strength and also low dielectric losses (especially steatite).

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