Here's why:

* Molecular Structure: Bakelite is a thermosetting plastic formed by a complex cross-linked polymer structure. This structure restricts the movement of electrons, making it difficult for electricity to flow through it.

* Electrical Resistance: Bakelite has a very high electrical resistance, which means it strongly resists the flow of electric current.

* Applications: Bakelite's insulating properties are one of the main reasons it was widely used in electrical components and appliances, such as:

* Electrical switch housings

* Radio casings

* Electrical connectors

* Circuit boards (in early forms)

Important Note: While Bakelite is generally a good insulator, its electrical properties can be influenced by factors such as:

* Moisture: Bakelite can absorb moisture, which can decrease its resistance and make it more conductive.

* Temperature: At very high temperatures, Bakelite's insulating properties may degrade.

* Additives: The specific composition of Bakelite can influence its electrical conductivity.