Insulator

Insulator may refer to:


 * Insulator (electricity), a substance that resists electricity
 * Pin insulator, a device that isolates a wire from a physical support such as a pin on a utility pole
 * Strain insulator, a device that is designed to work in mechanical tension to withstand the pull of a suspended electrical wire or cable
 * Mott insulator, a type of electrical insulator
 * Topological insulator, a material that behaves as an insulator in its interior while permitting the movement of charges on its boundary
 * Insulator (genetics), an element in the genetic code
 * Thermal insulation, a material used to resist the flow of heat
 * Building insulation, the material used in building construction to prevent heat loss