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EVA Material from China: Top Suppliers and Factory for Ethylene-Vinyl Acetate Products

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Basic Definitions

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EVA, or Ethylene-Vinyl Acetate, is a versatile thermoplastic polymer composed of ethylene and vinyl acetate. This material is widely used due to its unique properties.

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The vinyl acetate (VA) content in EVA typically ranges from 5% to 40%. Variations in VA content result in differing material characteristics, making EVA suitable for various applications.

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As one of the leading China suppliers and manufacturers, we offer high-quality EVA products directly from our factory. Discover the advantages of working with a trusted China factory for all your EVA needs.

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    Main features
    Flexible elasticity

    The higher the VA content, the softer the material, the better the elasticity.

    Impact resistance

    Good impact resistance is maintained at low temperatures.

    Age resistance and ozone resistance

    More resistant to aging than ordinary polyethylene.

    Transparency and gloss

    Can be made into translucent or transparent products.

    Non-toxic and tasteless

    Meets environmental protection requirements and is often used in daily products.

    Good machinability

    Easy to injection, extrusion, foaming, hot pressure, etc.

    Viscosity

    Good compatibility and adhesion to filling and polarity materials.

    Main areas of application
    (1) The field of footwear
    • Midsole: Foamed EVA light weight, good elasticity, shockproof, widely used in sports shoes, leisure shoes midsole.
    • Shoe cushions: soft shock absorber.
    • Slippers: Foam EVA integrated slippers are light and non-slip.
    (2) Packaging and buffering materials
    • Foam EVA can be made into a variety of shapes of the lining, the protection of precision instruments, electronic products, gifts and so on.
    (3) Sporting goods
    • Yoga mats, fitness equipment handles, helmet lining, swimsuit frames, etc.
    • Children's sports mat, crawling mat (EVA splicing mat).
    (4) Toys and stationery
    • EVA puzzle mat, children's building blocks (soft and safe).
    • stationery such as stamp pad, protective case, etc.
    (5) Photovoltaics and Cables
    • Photovoltaic packaging film: EVA film is used for solar cell module packaging, good light transmission, weather resistance, strong adhesion.
    • Cable shields, insulation materials.
    (6) Hot melted gel
    • EVA with high VA content can be used to produce hot melt adhesives for book binding, furniture edge binding, packaging bonding, etc.
    Foam EVA (most common form)

    By adding a foaming agent (such as AC foaming agent) by molding or extrusion to form a closed-cell or open-cell foam material, characterized by:

    Lightweight Design

    Very light

    Buffering Performance

    Excellent buffer performance

    High Adaptability

    Can be cut into any shape

    Processing Capability

    Printable, composite other materials

    Detailed Drawing of Foam EVA
    Differences from similar materials
    Material Characteristics Comparison

    EVA is softer than PE, more environmentally friendly than PVC (without plasticizers), easier to process than rubber and lower in price.

    PE (polyethylene)

    Harder, less elastic, not easy to foam into high elastomer.

    PVC (polyvinyl chloride)

    Adjustable hardness but often need to add plasticizers, there may be environmental concerns.

    Rubber

    Good elastic but heavy, complex to process and expensive.

    Note
    · High temperature resistance: general EVA use temperature does not exceed 70C.
    · Flammable: Foam EVA flammable, need to add flame retardant for specific occasions.
    · Poor oil resistance: exposure to oil may swell or degrade performance.
    Frequently Asked Questions
    Q: What determines the elasticity and softness of EVA material?
    The softness and elasticity of EVA depend directly on its Vinyl Acetate (VA) content. A higher VA content yields a softer material with superior elasticity.
    Q: Why is Foam EVA widely used in the footwear industry?
    Foam EVA is highly favored for shoe midsoles, cushions, and slippers because it is extremely lightweight, offers excellent buffer performance, and provides outstanding shock absorption and slip resistance.
    Q: How does EVA compare to PVC in terms of environmental safety?
    EVA is more environmentally friendly than PVC. While PVC often requires the addition of plasticizers to adjust its hardness (which raises environmental concerns), EVA is naturally soft, non-toxic, and tasteless.
    Q: What is the maximum working temperature limit for general EVA?
    General EVA has limited high-temperature resistance, and its recommended use temperature should not exceed 70°C.
    Q: Can Foam EVA be used in fire-sensitive or oil-rich environments?
    Standard Foam EVA is flammable and has poor oil resistance. For specific fire-sensitive applications, flame retardants must be added. Exposure to oils should be avoided as it can cause the material to swell or degrade.

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