Mica heater plate is composed of Muscovite or Phlogopite mica paper and small amount of heat resistant silicon binder and has good properties of electrical and thermal insulation and retain its properties even after being exposed to heat.
Characteristics |
Test Method |
MICA HEATER PLATE |
Muscovite |
Phlogopite |
Mica Content |
IEC 371-2 |
> 90 % |
Silicone Content |
IEC 371-2 |
< 10 % |
Thickness Tolerance, mm |
Average |
IEC 371-2 |
+/- 5% |
Individual |
+/-6% |
Standard Size (mm) |
IEC 371-2 |
1000 x 600, 1000 x 1200,
1000 x 2400 |
Density (gm/cm3) |
IEC 371-2 |
1.60~2.20 |
1.60~2.20 |
Flexural strength (N/mm2) |
ISO 178 |
≥180 |
≥160 |
Dielectric strength (KV/mm) at 23°C |
IEC 243 |
>20 |
>18 |
Insulation resistance (M-ohm) at 23°C |
IEC 93 |
200 ~ 600 |
100 ~ 600 |
Resistance to temperature |
continuous |
500ºC |
700ºC |
Peak |
550ºC |
750ºC |
Weight Loss @ 550°C for 4 Hrs |
IEC371-2 |
<1% |
Water Absorption after 24 hrs |
ISO 62 |
<1% |
