Density≥

g/cm3

1.70~1.90

Flexural strength≥

MPa

166

Tensile strength≥

MPa

78

Compressive strength≥

MPa

157

Shear strength≥

MPa

68

Impact strength≥
Flatwise
Edgewise

kJ/m2

90
45

perpendicular to lamination in transformer oil at 25±2℃≥

kV/mm

14

Insulation resistance≥
Under normal condition
After boil in water

Ω

1×1014
1×1011

Volume resistivity≥
Under normal condition
After boil in water

Ω.cm

1×1011
1×1010

1MHz loss factor≤

—

0.05

1MHz loss relative dielectric coeff≤

—

5.5

Arc resistance≥

s

180

Heat deflection temperature≥

℃

200

Flammability≥
Oxygen index
UL-94 flame

—
—

50
94-V0

Water absorption≤

%

0.2

Area of the sheets

mm

1050×1230,1020×2040