FEP Properties

Physical, mechanical, thermal, electrical, and optical properties of FEP

TYPICAL PROPERTIES
  UNITS ASTM TEST  
Tensile Strength psi D638 4,350
Flexural Modulus of Elasticity psi D790 95,000
Izod Impact (notched) ft-lbs/in of notch D256 no break
Heat Deflection Temperature (66psi / 264psi) °F D648 -
Water Absorption
(Immersion 24 hours)
% D570 <0.01

 

PHYSICAL PROPERTIES
  UNITS ASTM TEST  
Specific Gravity - D792 2.12 - 2.17
Water Absorption
(Immersion 24 hours)
% D570 <0.01

 

MECHANICAL PROPERTIES
  UNITS ASTM TEST  
Tensile Strength psi D638 4,350
Tensile Modulus of Elasticity psi D638 -
Tensile Elongation % D638 300 - 325
Flexural Strength psi D790 -
Flexural Modulus of Elasticity psi D790 95,000
Compressive Strength psi D695 -
Hardness scale as noted D785, D2240 Shore D 55
Izod Impact ft-lbs/in D256 no break

 

THERMAL PROPERTIES
  UNITS ASTM TEST  
Coefficient of Linear Thermal Expansion in/in/°F x 10-5 D696 7.5
Heat Deflection Temperature (66psi / 264psi) °F D648 -
Max Continuous Service Temperature In Air °F - 392

 

ELECTRICAL PROPERTIES
  UNITS ASTM TEST  
Dielectric Strength V/mil D149 500

 

OPTICAL PROPERTIES
  UNITS ASTM TEST  
Light Transmittance % D1003 -
Haze % D1003 -

 

OTHER
  UNITS ASTM TEST  
Coefficient of Friction - Dynamic 0.25

Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.

Still Not Sure if You Need FEP? Research FEP or Ask a Plastics Expert.