EVA Material - High-Quality Ethylene-Vinyl Acetate from Reliable China Suppliers and Factory
Main features
The higher the VA content, the softer the material, the better the elasticity.
Good impact resistance is maintained at low temperatures.
More resistant to aging than ordinary polyethylene.
Can be made into translucent or transparent products.
Meets environmental protection requirements and is often used in daily products.
Easy to injection, extrusion, foaming, hot pressure, etc.
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:
- Very light
- Excellent buffer performance
- Can be cut into any shape
- Printable, composite other materials
Differences from similar materials
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 70°C.
- 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
EVA features flexible elasticity (which increases with higher VA content), excellent low-temperature impact resistance, aging and ozone resistance, transparency, non-toxic and tasteless properties, good machinability, and strong adhesion to polar materials.
EVA is widely used in footwear (midsoles, cushions, slippers), packaging and buffering materials, sporting goods (yoga mats, helmet linings), toys and stationery, photovoltaic packaging films, cable insulation, and hot melt adhesives.
Foam EVA is created by adding a foaming agent during molding or extrusion. It is highly valued for being very light, having excellent cushioning performance, being easy to cut into any shape, and compatible with printing and composite processing.
EVA is softer than PE (which is harder and less elastic). It is more environmentally friendly than PVC, which requires plasticizers. Compared to rubber, EVA is lighter, easier to process, and much more cost-effective.
EVA is not suitable for high-temperature environments, as its use temperature should not exceed 70°C. Additionally, it is flammable unless treated with flame retardants, and has poor oil resistance, which can lead to swelling or degradation when exposed to oils.