Hazy Biaxially Oriented Polyester Film 50µm (ES301231)



A hazy untreated polyester film with excellent flatness and high roughness on both surfaces for good processability



Density ρ

1.4 g/cm³ at 20 °C

ASTM D1505

Film yield Yfilm

14.3 m²/kg at 20 °C

Surface density ρsurf

6.999999999999999E-3 g/cm² at 20 °C

Surface roughness RMS

0.4 μm

DIN 4768


Thickness t

0.05 mm


Elongation A

150 % at 20 °C

ASTM D882-80

Elongation, transverse A

150 % at 20 °C

ASTM D882-80

Tensile strength Rm

19.4 MPa at 20 °C

ASTM D882-80

Tensile strength, transverse Rm,trans

19.4 MPa at 20 °C

ASTM D882-80


Coefficient of thermal expansion α

1.9E-5 1/K at 50 °C

Coefficient of thermal expansion, transverse αtrans

1.6E-5 1/K at 50 °C

Melting point Tm

255 - 260 °C

ASTM E794-85


Haze H

10 %

ASTM D1003

Luminous transmittance t

87 [-]

ASTM D1003-77 (Gardner hazemeter)

Technological properties


The key features are: High dimensional stability and excellent flatness, superb machinability due to surface roughness characteristics, certified UL746B (105°C), available in both reels and sheets

This material data has been provided by Goodfellow.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.