LDPE Properties

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

LDPE (low density polyethylene) is a soft, pliable, lightweight plastic material. It is noted for its low temperature flexibility, toughness, and corrosion resistance. It is not suited for applications where stiffness, high temperature resistance and structural strength are required. LDPE has good chemical and impact resistance and is easy to fabricate and form.

LDPE is widely used for orthotics and prosthetics and is available in several material options.

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For a glossary of terms, see our Plastic Properties Descriptions.

 

TYPICAL PROPERTIES
  UNITS ASTM TEST  
Tensile Strength psi D638 1,400
Flexural Modulus of Elasticity psi D790 30,000
Izod Impact (notched) ft-lbs/in of notch D256 no break
Heat Deflection Temperature (66psi / 264psi) °F D648 122    - 
Water Absorption
(Immersion 24 hours)
% D570 0.10

 

PHYSICAL PROPERTIES
  UNITS ASTM TEST  
Specific Gravity - D792 0.92
Water Absorption
(Immersion 24 hours)
% D570 0.10

 

MECHANICAL PROPERTIES
  UNITS ASTM TEST  
Tensile Strength psi D638 1,400
Tensile Modulus of Elasticity psi D638 -
Tensile Elongation % D638 500
Flexural Strength psi D790 -
Flexural Modulus of Elasticity psi D790 30,000
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 -
Heat Deflection Temperature (66psi / 264psi) °F D648 122    - 
Max Continuous Service Temperature In Air °F - -

 

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

 

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

 

OTHER
  UNITS ASTM TEST  
Coefficient of Friction - Dynamic -

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

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