Product

Why to Use Mica Sheets as Insulations ?

  • Asbestos Free
  • Saves electricity/power cost
  • Longevity
  • Cost Effective
  • available in various thickness and sizes
  • Easy Available
  • Easy to Fabricate Parts
  • Gaskets and components
  • Available in various thickness (0.06mm -> 50mm)
  • Easy to store

Technical properties of Muscovite Mica

Properties Units Muscovite
Color   Ruby/ Green/ White
Density gm/cm3 2.6 – 3.2
Specific heat   0.21
Hardness Moh scale 2.8 – 3.2
  Shore Test 80-105
Breakdown voltage KV/mm 120 – 200
Coefficient of expansion per  °C perpendicular to cleavage plane   9 x 10-6 – 36 x 10-6
Thermal conductivity perpendicular to cleavage plane Gm.cal/sec/cm2/°C/cm
 
about 0.0013
  BTU/hr/ft2/0f/ft about 0.31
Thermal conductivity parallel to cleavage plane Gm.cal/sec/cm2/°C/cm    
  BTU/hr/ft2/0f/ft
 
 
Water of Constitution %   4.5
Moisture Absorption   Very low
Volume Resistivity 25°C (77°F) ohm cm 40 x 1013 -2 x 1017  
Acid Reaction   affected by hydrofluoric acid
Insulation resistence x1013ohm/cm 4-20000
Calcining temp °C 700-800
Max. operating temp °C 500-600
Optic axial angle degrees 55 – 75
Tensile strength MN/m2 175
Shear strength MN/m2 220 – 270
Compression strength MN/m2 190 – 285
Modulus of Elasticity Kgfcm2 x 10-3
lbf/in2 x 10-6  
1400 – 2100
20 – 30
Loss tangent x10-4 1-4
Permittivity at 15°C (60°F)   6 – 7