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Mica Tape Calcined - China

price: contact company for price


FIRO- CM is a dry and flexible insulating tape made of calcined mica paper Muscovite , a glass cloth and modified silicone resin .


According to the different reinforcing material, the products can be divided into following ones:

S- CM- GS/ FIRO- CMGS Glass Backed Calcined Muscovite Mica Tape

Note: Meaning of product code

S- CM: product serial number; CM: calcined Muscovite;


FIRO- CM is used for the insulation of flame resistant security cables according to requirements IEC 331 or BS 6387 . Pyromania is wound up around the bare or insulated wire and it provides a protection barrier . The insulation must withstand at temperature up to 1000℃ . Pyromania is not burning , non toxic and it is resistant for corrosion , humidity and acids .


Thickness: 0.10mm- 0.18mm

Width: . 5mm- 1000mm

Length: 300m 500m 1000m 2000m . Traverse wound spools optional

Standard cores: 52mm 54mm 76mm 120mm


In dry environment at room temperature, the storage period is 3 year.


One pack is usually at 50kg, sealed with plastic film and packed in carton. The fumigation- free pallet shall be used when exporting. Each pallet contains <1000KG, or protected by metal drum.


The technicians should select appropriate width mica tape based on the wire sizes, winding tension, angles and wrapping speed, in case of broken tape or missed space, to ensure the surface of the insulated conductors after wrapping is smooth and flat, no mica falling off.

When winding small cross section wires, due to small coiling radius, the mica falls off easily. The width of the mica tape is small and the tensile strength is small, so the coiling tension and speed shall be uniform, in case tape broken and mica powder fallen off.

Mica tape wrapping layers and lapping rate are different when the material properties, specifications and models of the cables are different, and shall be determined by the cable designer based on the result of fire resistance test. According to IEC standard about fire- resistant cable testing, we recommend wrapping layers are 2 and the lapping rate is not less than 50% , i. e. the wire is wrapped by 4 layers of mica tapes.



  0.12mm 0.13mm 0.14mm

Appearance  No alien material , no split , scar& hole, no broken folded

Length m 500/ 1000/ 2000

Thickness mm 0.12±0.02 0.13±0.02 0.14±0.02

Weight of Tape g/ m2 150±15 160±15 170±15

Mica Content % >55 >60 >60

Breakdown Voltage KV >1.8 >2.0 >2.0

Tensile Strength N/ 15mm ≥150 ≥150 ≥150

Binder Content % 20±3 20±3 20±3

Fire Grades ℃ 900℃- 1050℃Â

Company Contact:

  • Phone: +8618587728575

  • Address: Room731-001 No.750 Chuangyuan road hi-tech zone ,N, ningbo, China

  • Email: Email

Published date: March 24, 2016 -

  • Business Description: Ningbo swell is committed to manufacture and distribute the best quality

    mica products to her customers worldwidely with exclusive service. Our

    mica products include Mica Tape for fire-resistant wire and cables, mica

    sheet, mica tube, mica parts, and etched foil mica heating film and mica

    heating element,mica insulator etc.

    We export mica products to many countrys for more than 10 years.

    To be Professional Manufacturer of Mica in the world. We strive to improve management and quality control process through innovation.

    We have recognizedTUV, UL, RoHS and REACH certification.

    Products list:

    1.Mica sheet

    a.Phlogopite mica sheet(rigid and flexible)

    b.Muscovite mica sheet(rigid and flexible)

    c.Synthetic mica sheet

    2.Mica tape.

    3.Mica parts

    4.Mica tube

    5.Mica roll and ceramic composite mica roll for induction furnace.

    6.Mica insulator

    7.Far infrared Mica heating film

    8.Mica heating element

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