CroyFilm Polyester

Property

Thickness

Units

Value

Test Method

Test Conditions

µm

MD*

TD*

Mechanical

Tensile strength

36-75

N/mm²

210

260

ISO 527-1 and

ISO 527-3

Sample type 2

Test speed 100%min.:23°C, 50% r.h.

100-125

180

230

190-350

150

200

Elongation at break

36-75

%

150

110

ISO 527-1 and ISO 527-3 Sample type 2

Test speed 100%min.:23°C, 50% r.h.

100-125

185

120

190-350

200

140

Youngs’s Modulus

36-75

N/mm²

4000

5200

ISO 527-1 AND

ISO 527-3

Sample type 2

Test speed 1%min.:23°C, 50% r.h.

100-125

4100

4800

190-350

3600

4300

F5-value (stress to obtain 5% elongation)

36-350

N/mm²

105

105

ISO 527-1 AND

ISO 527-3

Sample type 2

Test speed 100%min.:23°C, 50% r.h.

Thermal

Shrinkage

36-190

%

1.0

0.3

DIN 40634

150°C, 15min.

250-350

1.0

1.0

Optical

Haze

36

%

9

ASTM-D 1003-61 method A

Enlarged measurement angle

50

13

75

15

100

18

125

22

190

25

250

28

350

30

Electrical

Dielectric strength

36/190

kV/mm

510/420

290/150

200/135

DIN 40634 or VDE 0345 in air

23°C, DC

23°C, 50 Hz

150°C, 50 Hz

Dielectric dissipation factor (tano)

36-350

-

0.0020

0.0052

0.0210

0.0060

0.0060

0.0048

DIN 40634 or VDE 0345

23°C, 50 Hz

23°C, 1 kHz

23°C, 1 MHz

23°C, 240 MHz

23°C, 9300 MHz

150°X, 50 Hz

Volume resistivity

36

Ω x cm

Ø  10¹⁷

Ø  10¹¹

DIN 40634 or VDE 0345

23°C, DC

150°C, DC

Surface resistivity

36

Ω

Ø  5 x 10¹⁴

DIN 53482 or VDE 0303/ part 3

23°C, 25% r.h.

23°C, 50% r.h.

150°C, 75% r.h.

Dielectric constant

36-350

-

3.3

3.3

3.2

2.9

2.9

3.6

DIN 40634 or VDE 0345 in air

23°C, 50 Hz,

23°C, 1 kHz

23°C, 1 MHz

23°C, 240 MHz

23°C, 9300 MHz

150°C, 50 Hz

Conductivity of aqueous extract

36-350

µS/cm

2

DIN 40634 or VDE 0345

1kHZ

Water absorption (compared to dry state)

36-350

%

0.5

ASTM-D 570

4 days in water at 23°C

Frigen extract

190

%

0.05

DIN 8944

Cold extraction

Trichloroethylene-extract

190

%

0.2

DIN 8943

Extracted in Soxhalet apparatus for 2h. Boiled down for 15h at 105°C.