EVA Properties

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

EVA (ethylene vinyl acetate) is the copolymer of ethylene and vinyl acetate. It’s an extremely elastic material that can be processed like other thermoplastics. The material has low-temperature toughness, stress-crack and UV radiation resistance. EVA is widely used in the orthotic and prosthetic market for soft inner liners, inner boots, orthotics for hand and wrist, and more. Available with or without additives to reduce friction, EVA comes in semi-transparent white, black, and in black/white (bi-laminated). Please ask your Curbell Plastics representative for more specific information about an individual brand.

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

 

TYPICAL PROPERTIES
  UNITS ASTM TEST  
Tensile strength psi D638 3,580
Flexural Modulus of Elasticity psi D790 2,470
Izod Impact (notched) ft-lbs/in of notch D256 -
Heat Deflection Temperature (66psi / 264psi) °F D648 -
Water Absorption
(Immersion 24 hours)
% D570 -

 

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

 

MECHANICAL PROPERTIES
  UNITS ASTM TEST  
Tensile Strength psi D638 3,500
Tensile Modulus of Elasticity psi D638 -
Tensile Elongation % D638 770
Flexural Strength psi D790 -
Flexural Modulus of Elasticity psi D790 2,470
Compressive Strength psi D695 -
Hardness scale as noted D785, D2240 -
Izod Impact ft-lbs/in D256 -

 

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