Properties Unit Ergoterm Epoksterm Prepreg mica-glass
Company trade mark - 1 2 4 5 4H 5H 9H 9HK
Combination of layers - PmTsEn FpPmTsEn PmTsE FpPmTsE PmTsEh FpPmTsEh PmFpEh PmkFpEh
Thickness: ±0,03 mm mm 0,15 0,15 0,15 0,15 0,15 0,15 0,15 0,15 0,3
Weight: ±12% g/m2 225 220 225 220 200 230 240 242 410
Mica content g/m2 120 100 100 100 90 90 150  150 -
Binder content % 35±4 35±4 36±4 36±4 38±2 39±2 26±2 26±2 28±4
Temporary electrical
endurance, min.
kV/mm 35 45 35 45 35 45 50 50 25
Minimum tape breaking
strength warp/weft
N/10mm 140/30 140/20 140/30 140/20 140/30 140/20 30/20 30/20 -
Loss factor tg δ
• temp. 20oC
• temp. 155oC
-
0,015
0,3

0,015
0,4 

0,01
0,3

0,01
0,25

0,01
0,25

0,01
0,25

0,01
0,25

0,01
0,25
-
Temperature class - F F F F H F/H F F H
Pm - mica paper
Pu - polyurethane film
EP - epoxide-polyester film
E - epoxide resin
Ts - glass cloth
Fp - polyester film
M - additional curing not required (soft insulation)
U - after winding additional curing required (hard insulation)