Flexible Mica sheet

Product introduction

Pamica 5161,5162 and 5160 series of silicone-bonded flexible mica plates/rolls are plate-shaped or roll-shaped electrical insulation materials made from exceptional high-grade Muscovite mica paper or Phlogopite mica paper, bonded with silicone.

They are designed for thermal and electrical insulation for heating equipment, are offered in six different types to meet the individual requirements of users in household electrical appliance industry and heavy industry.

    Pamica® Mica sheet


    Products Type Thickness Standard Size Remark
    Rigid Mica sheets PB5662 0.3-1.5MM 1000x2400MM Suitable for corrugated mica part,small punched mica part,high strength framework of heater.
    Flexible Mica sheet PB5161 0.08-6MM 1000*2400MM Suitable to winding or wrapping, No recovery.
    Overthick Mica plate PB5761 2-100MM 1000*2400MM High dielectric strength, suitable for machined mica parts with drilling,milling and turning.
    Mica Commutator Sheet PB5531 0.15-2.0MM 1000*1200MM Insulation between copper segment of commutators
    Type Instructions
    PB5161 A very flexible texture muscovite grade mica sheet. It is used for normal thermal and electrical insulation for heating elements of electrical heating rods, micro electrical motors, microwave ovens.
    PJ5161 A very flexible texture phlogopite grade mica sheet. It is used for high-thermal and electrical insulation for heating elements of electrical heating rods, electrical soldering irons which has relatively small diameter.
    PB5162 A Semi-flexible texture & elasticity muscovite grade mica sheet. It is used for high-thermal and electrical insulation for heating elements such as hairdryers, space heaters, circuit breakers and transformers.
    PJ5162 A Semi-flexible texture & elasticity Phlogopite grade mica sheet, more extremely outstanding performance of high-thermal & voltage insulation. It is used as sheathing or covering, and also as a separator or insulation foil,a substitute for asbestos to be insulation pads of exhaust-pipes of cars.
    PB5160 A very flexible exture & elasticity muscovite grade mica roll. It is used for high-thermal and electrical insulation for heating elements of large-scare main frequency furnaces, middle frequency furnaces, low frequency furnaces, and electrical arc furnaces in heavy industries like steel industry and metallurgy industry.
    PJ5160 A very flexible exture & elasticity phlogopite grade mica roll. It is used for high-thermal and electrical insulation for heating elements of large-scare main frequency furnaces, middle frequency furnaces, low frequency furnaces, and electrical arc furnaces in heavy industries like steel industry and metallurgy industry.

    The material can be cut to size without any problem, either by shearing or die-stamping in avaliability: Sheets 1000 X600/1200mm,1000 X2000/2400mm, strips, punched pieces all in thickness of 0.10 to 6.00 mm ; Rolls 1000mm X 100m, thickness of 0.15 to 0.20mm

    Technical Date


    Type PB5161 PJ5161 PB5162 PJ5162 PB5160 PJ5160 Test Standard
    Mica content % ≥90 ≥90 ≥90 ≥90 ≥95 ≥95 IEC371
    Bond content % ≤10 ≤10 ≤10 ≤10 ≤5 ≤5 IEC371
    Density g/cm3 1.7-2.15 1.7-2.15 1.7-2.15 1.7-2.15 1.6-2.00 1.6-2.00 IEC371
    Heat resistance Continuous ℃ 500 700 500 700 500 700 -
    Intermittent ℃ 700 900 700 900 700 900 -
    Heat loss at 500 ℃ % ≤3 ≤3 ≤3.5 ≤3.5 ≤3.5 ≤3.5 IEC371
    Dielectric strength kV/mm ≥20 ≥18 ≥20 ≥18 ≥20 ≥18 IEC243
    Volume resistivity 23 ℃ ohm.cm >1017 >1017 >1017 >1017 >1017 >1017 IEC93
    500 ℃ ohm.cm >1012 >1012 >1012 >1012 >1012 >1012 IEC93