Mica Paper

Mica sheet and tube is produced by bonding thin mica paper layers together using a silicone adhesive under compression. It is a very strong and rigid material yet can be punched and machined to a specified design.

With a heat resisting capacity of up to 800 deg C, it can be used as the skeleton material of electrical heating elements and dielectric spacers at elevated temperatures. Due to its resistance to moister absorption Mica is ideally suited to a wide range of high temperature and electrical applications.


Property Unit of measure Value
Tensile StrengthMpa150
Elongation at Break%
Modulus of ElasticityMPa
Impact Strengthkj/m²
Compressive StrengthMPa400
Shear StrengthMPa
Shore HardnessD Scale
Co-efficient of Frictionμ
Water Absorption @ 23 Deg C%0.5
Service Temperature IntermittentᵒC800
Service Temperature ContinuousᵒC550
Melting pointᵒC
Thermal ConductivityW/m.ᵒC0.3
Dielectric StrengthkV/mm25
Volume ResistivityΩ.cm10¹²
Surface Resistivity
Arc ResistanceSec420