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Transparent PET film

Item

Unit

The value guaranteed

Test standard

Normal thichkness

um

7-15

16-36

Thickness deviation

%

±1.45

±1.45

ASTM D374

Tensile strength

MD

Mpa

>=200

>=200

ASTM D882

TD

>=200

>=200

Elogation at

Break

MD

Mpa

>=100

>=140

ASTM D882

TD

>=110

>=130

Elastic modulus

MD

Mpa

>=4000

>=4000

ASTM D882

TD

>=4200

>=4200

Thermal

 shrinkage

MD

%

<=1.5

<=2.0

ASTM D1204

TD

<=0.5

<=0.5

Coefficient of friction

uc

<=0.5

<=0.5

ASTM D1894

Haze

%

<=1.5

<=1.8

ASTM D1003

Gloss (45℃)

--

>=120

>=120

ASTM D2457

Corona treated level

MN/M

>=54

>=54

ASTM D2578

Appearance of the film

Without air bubbles,congultinations,goffers,scratch marks,nicks and so on