Properties	Natural mica shields
Thickness(mm)	0.2~0.3
Tolerance average	±0.04
Density(g/㎤)	1.9~2.0
Heat loss at 500℃	≤1.5
Flexural strength(kgf/㎟)	≥16
Work temperature℃	≥500
Dielectric strength(KV/mm)	≥22
Insulation resistance(MΩ)	100~600