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EVA Material Supplier in China - High-Quality Ethylene-Vinyl Acetate from Trusted Factory
Main features
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Flexible elasticity: the higher the VA content, the softer the material, the better the elasticity.
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Impact resistance: Good impact resistance is maintained at low temperatures.
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Age resistance and ozone resistance: more resistant to aging than ordinary polyethylene.
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Transparency and gloss: can be made into translucent or transparent products.
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Non-toxic and tasteless: meets environmental protection requirements and is often used in daily products.
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Good machinability: easy to injection, extrusion, foaming, hot pressure, etc.
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Viscosity: Good compatibility and adhesion to filling and polarity materials.
Main areas of application
(1) Footwear
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Midsole: Foamed EVA light weight, good elasticity, shockproof, widely used in sports shoes, leisure shoes midsole.
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Shoe cushions: soft shock absorber.
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Slippers: Foam EVA integrated slippers are light and non-slip.
(2) Packaging and buffering materials
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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
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Yoga mats, fitness equipment handles, helmet lining, swimsuit frames, etc.
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Children's sports mat, crawling mat (EVA splicing mat).
(4) Toys and stationery
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EVA puzzle mat, children's building blocks (soft and safe).
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stationery such as stamp pad, protective case, etc.
(5) Photovoltaics and Cables
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Photovoltaic packaging film: EVA film is used for solar cell module packaging, good light transmission, weather resistance, strong adhesion.
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Cable shields, insulation materials.
(6) Hot melted gel
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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:
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Very light
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Excellent buffer performance
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Can be cut into any shape
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Printable, composite other materials
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)
PE is harder, less elastic, and not easy to foam into high elastomer.
PVC (polyvinyl chloride)
PVC has adjustable hardness but often needs to add plasticizers, leading to potential environmental concerns.
Rubber
Rubber is highly elastic but heavy, complex to process, and relatively expensive.
Note
Usage Guidelines
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High temperature resistance: general EVA use temperature does not exceed 70°C.
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Flammable: Foam EVA flammable, need to add flame retardant for specific occasions.
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Poor oil resistance: exposure to oil may swell or degrade performance.
Frequently Asked Questions (FAQ)
What are the primary features of EVA material?
EVA material is characterized by its flexible elasticity (which increases with higher VA content), excellent impact resistance at low temperatures, high resistance to aging and ozone, transparency, non-toxic and tasteless properties, good machinability, and strong adhesion.
What are the main application areas of EVA?
EVA is widely used in footwear (midsoles and slippers), packaging and buffering materials, sporting goods (yoga mats and helmet linings), toys and stationery, photovoltaic packaging films, cable insulation, and hot melt adhesives.
How does EVA compare to PE, PVC, and rubber?
EVA is softer and more elastic than PE. It is more environmentally friendly than PVC as it does not require plasticizers. Compared to rubber, EVA is lighter, easier to process, and more cost-effective.
What are the limitations of using EVA material?
EVA has a maximum usage temperature limit of 70°C. Additionally, foam EVA is flammable (requiring flame retardants for specific safety applications) and has poor oil resistance, which can cause it to swell or lose performance when exposed to oils.
What makes foam EVA the most common form of the material?
Foam EVA is popular because it is exceptionally lightweight, offers superb buffering and shock-absorption performance, can be easily cut into any shape, and is highly printable and compatible with other composite materials.