Mica Paper

RAW MICA MATERIAL

Mica Paper Manufacturer & Supplier in China

High-purity mica paper produced by hydraulic separation from Muscovite, Phlogopite, calcined and synthetic mica. The upstream raw material for micanite plates, micanite tapes, mica sheets and mica gaskets. Supplied in rolls from 8 g/m² to 250 g/m². Factory-direct pricing, MOQ 10 rolls, free samples available.

Quick Data
Grammage 8 – 250 g/m²
Roll Width up to 1000 mm
Mica Types 4 types
Purity ≥ 92%

Four Mica Types

Choose the raw material that best fits your downstream product and temperature class

Muscovite

Best dielectric strength & lowest loss. Standard for electrical insulation.

Up to 500°C

Phlogopite

Highest temperature stability. Preferred for fire-resistant cables.

Up to 1000°C

Calcined

Heat-treated to remove crystal water. Higher thermal stability.

Up to 700°C

Synthetic

Highest purity — no natural mineral impurities. For critical electronics.

Up to 1100°C

Production Process

From raw mica crystal to finished paper roll in three stages

01

Hydraulic Separation

Raw mica crystal is mechanically and hydraulically broken down into fine pulp in water — removing impurities.

02

Paper Forming

Mica pulp is formed into a continuous sheet on a paper machine — the same principle as traditional papermaking.

03

Pressed & Rolled

The wet paper is pressed, dried and wound into rolls — ready for conversion into micanite products.

What is Mica Paper?

Mica paper is a sheet material manufactured entirely from fine mica flakes — without any fiber reinforcement or binder. Raw mica is first broken down into a water-based pulp by hydraulic separation, then formed into continuous paper on a papermaking machine and dried into rolls. The result is a flexible, self-supporting sheet that is 92% or more pure mica, with dielectric strength and thermal stability close to the raw mineral itself.

As an experienced mica paper manufacturer in China, Kaxite Sealing produces Muscovite, Phlogopite, calcined and synthetic mica paper in rolls from 8 g/m² to 250 g/m², widths up to 1000 mm. It is the upstream raw material for Mica Sheets, Mica Tapes and Mica Gaskets.

Grammage Range

8 g/m² (Thinnest) Capacitor-grade
80 g/m² Tape-grade
160 g/m² Sheet-grade
250 g/m² (Thickest) Board-grade

Downstream Products from Mica Paper

Mica paper is the base material for our full mica product family

Standard Specifications

Roll Dimensions

Grammage 8 – 250 g/m²
Roll Width up to 1000 mm
Roll Diameter up to 800 mm
Core Diameter 76 mm / 152 mm

Material Properties

Mica Purity ≥ 92%
Dielectric Strength 15 – 25 kV/mm
Water Absorption < 0.1%
Certificates RoHS / REACH

Custom grammage and roll dimensions available on request. Review our Our Quality page for tolerance specifications, or send us your inquiry for a fast quotation.

Downstream Applications

Where mica paper becomes finished products across industries

01

Micanite Plates

Rigid insulation boards for switchgear

02

Micanite Tapes

Fire-resistant cable wrapping tape

03

Transformer Insulation

Winding & coil dielectric layers

04

Electric Motors

Slot liner & phase insulation

05

Capacitors

Ultra-thin dielectric layer

06

Fire Barriers

Thermal fire protection layers

07

Industrial Furnaces

Thermal insulation linings

08

Aerospace

High-temp composite layers

Frequently Asked Questions

What is mica paper and how is it different from mica sheet?

Mica paper is made from fine mica flakes with no binder — it is flexible, thin (8-250 g/m²), and primarily used as a raw material to make downstream products. Mica sheet (also called micanite) is made by bonding mica paper to a fiberglass or resin backing, and is rigid or semi-rigid. See Mica Sheets for the finished product.

Which mica type should I choose for my downstream product?

Muscovite for general electrical insulation up to 500°C. Phlogopite for fire-resistant cable tapes and high-temp applications up to 1000°C. Calcined for enhanced thermal stability. Synthetic for critical electronics where maximum purity is required. Contact us for a recommendation.

What grammage do I need?

For capacitor dielectric use 8-30 g/m². For fire-resistant cable tapes use 60-120 g/m². For micanite plates use 100-180 g/m². For thicker board-grade products use 200-250 g/m². Tell us your downstream product and we will recommend the right grammage.

Can you supply mica paper in custom roll widths?

Yes. We supply standard roll widths up to 1000 mm, and slit to any custom width from 10 mm. Core diameters of 76 mm and 152 mm are standard; custom cores on request. Please send your inquiry with your required dimensions.

Do you provide Mill Test Certificate and documentation?

Yes. Every shipment includes Mill Test Certificate, dimensional inspection record and material composition report. RoHS and REACH documentation are available on request. See our Our Certificate page.

What is your MOQ, lead time and payment terms?

MOQ is 10 rolls for standard sizes. Lead time is 7-15 days after order confirmation. Payment terms are T/T or L/C. Free samples are available — you only cover the courier cost. Contact Us to discuss.

CUSTOM ROLL

Custom Grammage & Width

Send us your required grammage (8-250 g/m²), roll width and roll length — we slit and re-roll to your exact specification. No extra tooling charge for standard mica types.

Get Custom Quote
FREE SAMPLE

Request a Free Sample

Verify mica purity, dielectric strength and grammage against your own specification before placing a bulk order. All four mica types available as samples.

Contact Us Now

Get Factory-Direct Mica Paper Price

Tell us your mica type (Muscovite / Phlogopite / Calcined / Synthetic), grammage, roll width and quantity today — our sales team replies within 24 hours with a competitive quotation and free sample offer.

Send Inquiry Now
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Choose from our selection of Mica Paper, including over kinds of Mica Paper products in a wide range of styles and sizes. In stock and ready to ship