lamina

Mica Paper Base

The Electrical, Mechanical and Thermal Properties of Mica make it the best insulation material in the earth. The Mica Scrap and waste is used to make reconstituted Mica paper, which is used to make different kinds of electrical and thermal insulation material.

The properties of mica mineral are retained by using Mica paper with different bonding agents like, Epoxy and Silicon. The bonding agent are used as per requirement of application.

Download Datasheet and properties

Five types of Mica Paper Base are :-

 
Heater Mica Plate Insulation Mica Sheet Flexible Mica Sheet Commutator mica Plate Synthetic mica Sheet
  • i) Heater Mica Plate :-

    SmithLamina Heater Mica Plate is manufacture using best quality Muscovite or Phlogophite Mica paper with Silicon resins binder under specific heat and pressure to produce Rigid and flat surface sheets.

    It is blister free and generates very low smoke on first heat. Fully resist against high heat with excellent electrical insulation. Suitable for easy die punching or machining as require. It is widely used as a heating barrier as well as electrical insulation for many domestic appliances and various industrial applications.

    Availability :-

    •Sheet Size- 1000mm x 1200mm ,1000mm x 600mm

    •Thickness- 0.1mm to 2mm (+/- 5%)

    Characteristics   SMITHERM - SM14 SMITHERM - SP14
    MICA TYPE   MUSCOVITE PHLOGOPHITE
    COLOUR   WHITE CREAM BROWN
    MICA CONTENT % Min 90 90
    RESIN CONTENT % Max 10 10
    DENSITY Gm/cm3 2.0~2.2 2.0~2.2
    HEAT RESISTING CONTINUOUS °C 500 700
    HEAT RESISTING INTERMITTENT °C 800 1000
    DIELECTRIC STRENGTH @23°C KV/mm >20 >18
    EDGE STRENGTH Kg / 0.1MM 1.3 0.9
    TENSILE STRENGTH N/mm2 140 100
    FLEXURAL STRENGTH N/mm2 180 150
    WATER ABSORBATION % <1 <1
    Data are average results of laboratory tests conducted under standard procedures and are subject to Variation, These do not constitute a warranty or representation for which we assume legal responsibility
  • ii) Insulation Mica Sheet :-

    SmithLamina Mica Insulation Plate is manufacture using best quality Muscovite or Phlogophite Mica paper with Silicon resin binder under specific heat and pressure to produce Rigid and flat surface sheets.

    Mica plates have very good electrical and mechanical properties. Fully resist against high heat with excellent electrical insulation. It is well suited for any machining into any shapes.

    It is widely used for Arc Chutes, Bus bar supports, Furnace Lining, Induction furnace, Resistor banks, Insulation of high heating area etc.

    Availability :-

    Size - 1000x1200mm

    Thickness - 2mm to 50mm

    Tolerance - +/- 5%


    Characteristics   SMITHERM - SM14 SMITHERM - SP14
    MICA TYPE   MUSCOVITE PHLOGOPHITE
    COLOUR   WHITE CREAM BROWN
    MICA CONTENT % Min 90 90
    RESIN CONTENT % Max 10 10
    DENSITY Gm/cm3 2.0~2.2 2.0~2.2
    HEAT RESISTING CONTINUOUS °C 500 700
    HEAT RESISTING INTERMITTENT °C 800 1000
    DIELECTRIC STRENGTH @23°C KV/mm >20 >18
    EDGE STRENGTH Kg / 0.1MM 1.3 0.9
    TENSILE STRENGTH N/mm2 140 100
    FLEXURAL STRENGTH N/mm2 >180 >150
    WEIGHT LOSS @550°C FOR 4 Hrs % <1 <1
    WATER ABSORBATION % <0.5 <0.5
    Data are average results of laboratory tests conducted under standard procedures and are subject to Variation, These do not constitute a warranty or representation for which we assume legal responsibility
  • iii) Flexible Mica Sheet :-

    SmithLamina Flexible Mica Plate is manufacture using best quality Muscovite or Phlogophite Mica paper with
    flexible resinous binder under specific heat and pressure to produce flexible and flat surface sheets.

    Flexible Mica Plates is a good heat resistant Insulating material, which retains its permanent flexibility at room temperature.

    It is widely used for Transformers, Electric furnace, electric home appliances where insulation require in uneven shapes. Characteristics

    Characteristics   SMITHERM - FMS SMITHERM - FPS
    MICA TYPE   MUSCOVITE PHLOGOPHITE
    COLOUR   WHITE CREAM BROWN
    SHEET SIZE MM 1000 X 600MM, 1000X1200MM
    THICKNESS MM 0.15 - 3MM (+/-5%)
    MICA CONTENT % Min 85 85
    RESIN CONTENT % Max 15 15
    DENSITY Gm/cm3 2.1 ~ 2.2 2.1 ~ 2.2
    HEAT RESISTING CONTINUOUS °C 500 800
    HEAT RESISTING INTERMITTENT °C 800 1000
    TENSILE STRENGTH N/mm2 140 100
    DIELECTRIC STRENGTH @23°C KV/mm >16 >16
    TENSILE STRENGTH Kgf/15mm >12 >12
    WATER ABSORBATION % <0.5 <0.5
    Data are average results of laboratory tests conducted under standard procedures and are subject to Variation, These do not constitute a warranty or representation for which we assume legal responsibility
  • iv) Commutator mica Plate :-

    SmithLamina epoxy mica sheet for commutator consist of Muscovite or phlogopite mica paper, impregnated with a specially selected epoxy resin. It performs good electrical properties, mechanical strength, and excellent moisture resistance.

    Application :-

    This product is a hard, dense mica sheet for use in segments, separators and spacers. It 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.

    Type SCM-14 SCP-14
    Mica Paper Muscovite Phlogopite
    Bond Content % ≤10 ≤10
    Density g/cm3 2.1-2.4 2.1-2.4
    Thickness Tolerance mm Average +0.02 +0.02
    Individual +0.03 +0.03
    Compressibility Ce-elastic % ≤2.5 ≤2
    Cp-plastic % ≤2.5 ≤2
    Flexural Strength MPa >300 >300
    Elastic Modulus MPa >80 000 >70 000
    Resistance To Exudation and Displacement °C 200 200
    Dielectric Strength KV/mm >25 >25

    Availability :-

    • In sheets of 1000x600mm, 1000x1200mm

    • In strips and in cut parts, according to drawings.

    • Thickness: 0.1 mm - 1.9 mm


    Package :-

    • Package: Carton

    • Size (LXW) :1000x600mm or 1000x1200mm

    • Protective package Pallet or Wooden case



  • v) Synthetic mica Sheet :-

    SmithLamina Synthetic Mica Plate is manufacture using best quality synthetic Mica paper with Silicon resins
    binder under specific heat and pressure to produce Rigid and flat surface sheets.

    Synthetic mica has high temperature resistance then Muscovite and Phlogophite Mica. Synthetic mica is
    extensively applied on products with strict requirement of high dielectrically strength and high temperature
    resistance.

    Availability :-

    Characteristics Unit SMITHERM - SS14
    MICA TYPE   SYNTHETIC
    COLOUR   WHITE
    MICA CONTENT % Min 90
    RESIN CONTENT % Max 10
    DENSITY Gm/cm3 2.2~2.3
    HEAT RESISTING CONTINUOUS °C 900
    HEAT RESISTING INTERMITTENT °C 1100
    DIELECTRIC STRENGTH 20C KV/mm >25
    400C / 1 Hrs >13
    600C / 1 Hrs >10
    TENSILE STRENGTH N/mm2 140
    FLEXURAL STRENGTH N/mm2 180
    WATER ABSORBATION % <1.5
    THERMAL CONDUCTIVITY W/ m.k 0.3
    Data are average results of laboratory tests conducted under standard procedures and are subject to Variation, These do not constitute a warranty or representation for which we assume legal responsibility.

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