Mica Paper

What is Mica Paper?

Mica paper is comprised of 90 % mica impregnated with a specific high-temperature-resistant binder, and reinforced by glass fibre applied to one side. When this paper is exposed to high temperatures, its resin content breaks down, without impairing the high-temperature electrical insulating properties of mica. Its dielectric strength remains constant up to 380 °C, then decreases progressively. Moreover, mica paper is chemically neutral, non-toxic and entirely halogen-free. It shows excellent resistance to water, acids (excluding sulphuric acid), bases, mineral oils and solvents. The mineral phlogopite shows exceptional flame-resistance properties, and can easily accommodate peak temperatures of up to 1,000 °C.

Mica Paper Description:

Mica paper are based on either muscovite or phlogopite mica paper bonded with a high quality heat resisting silicone resin. Several layers of resin impregnate mica paper are pressed under heat and high pressure to form rigid. The resulting fully has good mechanical electrical and thermal properties. It can be punched cut into various shapes & size. These sheets can withstand temperatures ranging up to 1000°C.

Mica paper is made from crushed mica flakes (white mica, gold mica, synthetic mica) after chemical pulping or hydro-mechanical pulping, made into rolls on a circular mesh paper machine at a slow speed, and then cut into rolls or flat sheets. It maintains many of the excellent properties of natural mica and has uniform thickness and a small range of fluctuations in dielectric strength. It can replace natural mica in many applications and opens up a broad prospect for the comprehensive utilization of mica resources.

Mica Paper Advantages:

Excellent high temperature resistance;
Excellent insulation properties;
Stable chemical properties;
Excellent mechanical properties;
Excellent permeability and air permeability.

Why choose Mica Paper?

Mica paper consist of muscovite or phlogopite mica paper, impregnated with a specially selected epoxy resin. This product is a hard, dense mica sheet for use in segments, separators and spacers. It exhibits good electrical properties, mechanical strength, excellent moisture resistance, and can be sawed, sheared and punched into intricate shapes using good commercial practice. Because of its superior uniformity, automatic feeding and stacking are possible for cost savings in high speed assembly operations.


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