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  Home > Products Information > FEP film    
 

FEP film

 
FEP film

Products Infomation:


FEP FilmThicknesses from 0.015mm to 0.3mm
* Excellent thermal stability: Usable throughout a wide thermal range -200 to +200掳C (-328 to +392掳F)
* Chemical Inertness: Resists almost all chemicals, such as strong acid, strong alkali, salt, and organic solvent.
* Anti-stick property: The lowest surface energy of all plastic films; displays excellent mould release and anti-stick properties.
* Electrical reliability: High electrical insulation characterised by low-dialectic constant and dissipation factor and by high dialectic strength over a wide range of temperature and frequency.
* Resistance to weathering: Inert to outdoor exposure; with unchanged mechanical and physical properties after 10 years.
* Non-flammability: Will not burn in air or gas having an oxygen concentration of less than 95%.
* High transparency: Transparent, with excellent transmission of ultraviolet rays and visible rays; lowest refractive index of all plastic films; characterised by very low light reflection.

Standard Specifications of FEP Film

Thickness

Size and width

mm

inches

Width (mm)

0.015

0.0006

400-1000

0.02

0.0008

400-1000

0.05

0.002

400-1000

0.1

0.004

400-1000

0.15

0.006

400-1000

0.2

0.008

400-1000

0.25

0.01

400-1000

0.3

0.012

400-1000


Also available:
Surface treatment for bonding applications.(sizes from 0.025mm to 0.1mm treated by corona discharge, larger sizes chemically etched)
Pigmented films available for specialist applications (e.g. release film) red, white, black, chromed.
Perforated films available for release film applications.

FEP Film Properties

Property

Value

Units

Method

Physical Properties

Specific Gravity

2.15

 

ASTM D1505

Tensile Strength (machine direction)

290

Kg/cm2

 

Tensile Strength (transverse direction)

275

Kg/cm2

 

Elongation (machine direction)

350

%

 

Elongation (transverse direction)

360

%

 

Bending Resistance

>100,000

cycles

 

Co-efficient of friction (static) (to steel ball)

0.1-0.4

 

Bauden-Rebens

Contact Angle (water)

110-115

degrees

 

Optical Properties

Transmittance (wavelength 0.2 to 3)

95

%

 

Refractive Index

1338

N25

 

Thermal Properties

Melting Point

270

掳C

 

Lowest temp of thermal decomposition

420

掳C

10掳C/min temp rise

Specific heat

0.28

Cal/g.cm

 

Co-efficient of thermal conductivity

6脳10-4

Cal/sec 掳C.cm

ASTM C177

Co-efficient of linear expansion

8.3-10.5脳10-5

1/掳C

ASTM D696

Heat Shrinkage Rate (machine direction)

-0.4

% 0.005mm

30 min at 150掳C

Heat Shrinkage Rate (transverse direction)

+0.3

% 0.005mm

30 min at 150掳C

Electrical Properties

Dielectric Constant 103 鈥 109Hz (22掳-2掳C)

2.05

 

ASTM D150

Dissipation Factor 103 Hz (22掳-2掳C)

<0.0002

 

ASTM D150

Dissipation Factor 106 Hz (22掳-2掳C)

0.0004

 

ASTM D150

Dissipation Factor 103 Hz (22掳-2掳C)

0.0015

 

ASTM D150

Volume Resistivity (22掳C)

1018

Ohm-cm

ASTM D257

Dielectric strength

13

Kv/100microns

ASTM D149

Permeability

N2 Gas

120脳10-10

Cm3.cm/cm2.sec.atm

ASTM D1434

O2 Gas

370脳10-10

Cm3.cm/cm2.sec.atm

ASTM D1434

H2 Gas

1080脳10-10

Cm3.cm/cm2.sec.atm

ASTM D1434

CO2 Gas

970脳10-10

Cm3.cm/cm2.sec.atm

ASTM D1434

CH4 Vapours

66脳10-10

Cm3.cm/cm2.sec.atm

ASTM D1434

Ethylene Vapours

44脳10-10

Cm3.cm/cm2.sec.atm

ASTM D1434

Moisture Permeability

1.6

g/m2. 24hrs

 

Water absorption

<0.01

%, 24hrs

ASTM D570

Flammability

Critical Oxygen Index

>95

% by vol.

 

Durability

Water, moisture

Excellent

 

 

Sunlight, ultraviolet rays

Excellent

 

 


Usage :
Mainly used in electrical components, wire insulation

 
     
  FORBEST MANUFACTURING CO., LTD
  Add: Fulian industrial Longhua town shenzhen city guangdong province china.
  Tel: 86-755-33692656 / 33687720 Fax: 86-755-61673663
  E-mail: forbest-tubing@VIP.163.com info@insulation-tubing.com
  Website: www.insulation-tubing.com www.forbest2006.en.alibaba.com
  Changsha office  
  Add: 5floor, The 16th building Times City, Yuelu district, Changsha City, Hunan Province China.
  Tel: 86-731-84787369 Fax: 86-731-84787370
 
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