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EVA: Definition, Features and Applications

Ethylene-Vinyl Acetate (EVA) is an extremely elastic polymer that is known to possess plastic-like properties. With a number of features, this polymer is perfect for use in many different industries.

EVA Defined

A combination of Ethylene and Vinyl Acetate, EVA can be classified into three copolymers: low, medium and high vinyl acetate proportion.

  • Low proportion - makes EVA a thermoplastics material.
  • Medium proportion - usually around 4 to 30%, this involves the processing of EVA as a thermoplastic elastomer material.
  • High proportion - with over 40% vinyl acetate, this is widely used in many rubber industries.

Distinct Features

EVA rubber is a soft material that can retain its flexibility down to -70°C – rubber products can withstand wear and tear. More than its flexibility, EVA is also popular in various industrial sectors for the following unrivalled qualities:

  • Extremely durable
  • Environmentally-friendly
  • Versatile
  • Waterproof
  • UV radiation and weather-resistant
  • Resistant to chemicals and stress-cracking

With a strength to weight ratio of 3 to 38kN-m/kg and an ultimate tensile strength of 3 to 35 MPa (0.4 to 5.1 x 103 psi), EVA is proven to outperform other rubber product alternatives.

Uses and Applications

A soft and flexible material, EVA can withstand heavy footfall while providing cushioning for muscles and joints. This feature makes it ideal for many uses including:

  • Protective crash mats
  • Comfortable bedding alternatives
  • High-quality footwear
  • Sports that require protective gear

Additionally, EVA can also be used in hot melt and heat seal adhesives, wire coatings and medical gloves; the copolymer comes in many grades and modifications to suit specific applications.

Coruba offers a range of high quality EVA rubber matting that gets top marks for its exemplary features and resistance capabilities! For more enquiries and product information, phone the rubber experts on 01702 560194.

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