Since 2003 · NEEQ Listed 430301

Fire-Resistant Mica Insulation for Critical Electrical Safety

From raw mica paper to custom finished insulation components, YT MICA designs and engineers fire-resistant high-temperature mica materials. Our solutions secure continuous operation for cables, EV battery packs and electrical equipment under fire and extreme thermal conditions.

National High-Tech Enterprise National "Little Giant" Enterprise 14 National Standards Co-Drafted

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At a Glance

23+Years in mica

1,000 °CPeak temperature resistance

10,000 tAnnual capacity (Hebei & Hunan bases)

60+Patents held

Product Portfolio

Mica insulation engineered for extreme conditions

Five product families covering the full chain from fire-resistant cable insulation to EV battery protection.

Mica Sheet

Rigid machinable mica sheet bonded with high-temperature silicone resin. Featuring excellent dielectric strength, a stable dielectric constant and superior thermal resistance up to 1000°C, it is widely used for electrical insulation and thermal barrier components in home appliances and industrial equipment.

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Mica Parts

Custom stamped, cut and machined mica insulation components. Designed for customized thermal and dielectric protection in home appliances, electrical devices and new-energy equipment, with custom size, thickness and structural tolerance supported.

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EV Mica Insulation

Yitian® EV-grade mica insulation is specially developed for lithium-ion battery packs and energy storage systems. Mica tape and mica board act as reliable cell-to-cell thermal barriers, effectively suppressing thermal runaway propagation under extreme high temperature and flame conditions. Featuring high tensile strength, stable insulation performance and excellent flame resistance, with full customisation of thickness, size and backing material.

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Cable Accessories

Professional mica-based auxiliary insulation and protective components for fire-resistant cable systems. Optimised for industrial, commercial and building fire safety applications to enhance overall circuit integrity under fire conditions.

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Fire & Circuit Integrity Laboratory

Our in-house fire and circuit integrity laboratory validates mica material performance according to IEC 60243-1:2013, IEC 60371-2:2004 and IEC 62631-3-2, and issues the test reports behind third-party certification.

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Why YT MICA

Vertical integration from mica paper to finished part

We control the entire production chain — mica paper manufacturing, taping, lamination and precision machining — across two production bases in Hebei and Hunan, backed by our Beijing headquarters. That means consistent quality, dependable lead times and the flexibility to engineer to your specification.

23 years of mica expertise. Founded in 2003 in Zhongguancun Science Park, Beijing.
Two production bases. Langfang, Hebei (mica tape) and Yueyang, Hunan (mica paper, mica sheet and machined parts), backed by a Beijing headquarters and R&D centre.
Standards participation. Co-drafter of 14 industry standards, including the GB/T 5019.9 and GB/T 5019.10 national standards for fire-resistant cable mica tape.
Automotive-grade supply. Qualified supplier to leading new-energy vehicle and energy-storage manufacturers.
Verifiable performance. Every batch traceable, with in-house fire and electrical testing.

About YT MICA

Mica tape winding production line at YT MICA Hebei plant

Mica sheet stamping and inspection workshop

QC operator at mica tape laminating line

Production bases

Software copyrights

2022

National Little Giant

Solutions

Built for the industries where failure is not an option

We work with cable makers, automotive suppliers and appliance manufacturers to match the right mica system to each application.

Fire-Resistant Cables

Find the right mica insulation system for your application.

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New Energy Vehicles

Find the right mica insulation system for your application.

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Energy Storage

Find the right mica insulation system for your application.

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Home Appliances

Find the right mica insulation system for your application.

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23Years of experience

2Production bases

14Standards co-drafted

60+Patents granted

Test & Verification

In-house fire and circuit integrity laboratory

Our test centre covers material property and fire resistance tests complying with IEC 60243-1:2013, IEC 60371-2:2004 and IEC 62631-3-2. Custom test conditions are available upon request.

Flame temperature750 – 950 °C

Rated voltageUp to 0.6 / 1 kV

Optional conditionsImpact & water spray

StandardsIEC 60243-1:2013 · IEC 60371-2:2004 · IEC 62631-3-2

Laboratory capabilities

750–950 °C

Controlled flame testing

Circuit integrity under fire,
verified in our own laboratory

News & Events

Latest from YT MICA

06Oct 2026

Company

YT MICA Passes the 2025 National High-Tech Enterprise Review

YT MICA has passed the 2025 national high-tech enterprise review (certificate GR202511003701), maintaining its A-level tax credit record and a portfolio of 60+ patents and 36 software copyrights.

30Sep 2026

Exhibition

YT MICA at wire China 2026 — Shanghai International Wire & Cable Exhibition

YT MICA exhibited at wire China 2026 in Shanghai, presenting fire-resistant mica tapes, mica sheets and EV insulation solutions to cable manufacturers from home and abroad.

14Apr 2026

Company

YT MICA Granted a National Invention Patent for Mica Composition and Seamless Fire-Resistant Mica Tube

YT MICA has been granted a national invention patent for a mica composition, mica tube and its preparation method, and has launched a seamless fire-resistant mica tube for energy storage and rail transit applications.

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Need the right mica insulation for your application?

Send us your specification — thickness, temperature class, standard — and our engineers will recommend a suitable construction.

Contact our team