Introduction

EVA (ethylene-vinyl Acetate copolymer) is a thermoplastic resin formed by the polymerization of ethylene and vinyl acetate monomers. It combines softness, toughness and impact resistance, and thus is widely used in multiple industries such as shoe materials, sports equipment, automotive parts and packaging cushioning. For plastic raw material purchasers, a thorough understanding of the performance characteristics and applicable fields of EVA is conducive to making more precise decisions in selection and cost control.

1. Composition and Classification

Main components: Ethylene and Vinyl Acetate are copolymerized

Difference in VA content

  ・5-10% VA: It has a relatively high hardness and its performance is closer to that of polyethylene
  ・10-20% VA: Flexibility and strength are in a balanced state
  ・20-40% VA: Softness and elasticity are significantly enhanced, making it suitable for foamed products

Supply forms: granular materials, modified granular materials, etc

2. Performance characteristics of EVA particles

Soft touch - rubber-like soft texture, excellent comfort

Light weight - low density, which is conducive to reducing the weight of the finished product

Buffering and shock absorption - Good resilience, suitable for absorbing shock

Water and chemical resistance - Resistant to water, oil and some solvents

Weather resistance is adjustable - it can be used outdoors after adding stabilizers

Safe formula is optional - meets food contact or medical standards

3. Common processing methods

EVA particles are suitable for a variety of thermoplastic molding processes

  ・Moldeo por inyección - sports shoe soles, sports equipment components

  ・Extrusión - films, tubes, profiles

  ・Foam - midsoles of shoes, yoga MATS, cushioning pads

  ・Calendering and molding - sheets, gaskets, sealing materials

4. The role of EVA in different industries

  ・Shoe materials: midsoles of sports shoes, flip-flops, slippers - light, soft, and with good resilience.

  ・Photovoltaic: The main material for solar module encapsulation films, with extremely high requirements for transparency and weather resistance.

  ・Automobiles: Sealing strips and interior filling parts are both resistant to aging and shock-absorbing.

  ・Embalaje: Shockproof pads, precision equipment protection pads, especially for export goods packaging.

Compared with PE and TPR, EVA has more advantages in flexibility and low-temperature toughness, but it is not as good as TPR in terms of high-temperature resistance. This is also a factor that must be weighed when making a purchase and selection.

5. Several points that the purchasing end is most concerned about

Price fluctuations: The price of EVA follows the market trends of ethylene and acetic acid, and fluctuations in oil prices will also be transmitted in.

Supply source: Asia is the main production area of EVA. China, South Korea and Japan all have large production capacities, and some manufacturers in the Middle East are also expanding.

Process adaptability: EVA particles can be injection molded, extruded, and foamed. Some customers, in order to save on mold costs, choose to directly cut and shape foamed boards.

6. Industry and Market trends

The shoe materials market continues to expand - the demand for sports and casual shoes drives the usage of EVA

Photovoltaic industry - used as encapsulation film for solar cell modules

Renewable EVA - plant-based ethylene can replace some petrochemical raw materials

Price fluctuations - closely related to the price trends of crude oil and ethylene

7. Suggestions from traders

Many customers tend to make two mistakes when choosing EVA for the first time

  ・Only looking at the price without considering the VA content - the result was that when I received the goods, I found the hardness was completely different from what I had expected.

  ・Ignore the matching of processing equipment - Some foaming machines are highly sensitive to the melt index of particles.

As an international plastic raw material trader, Juyuan can help screen the appropriate grades in this regard and provide stable supply through multiple channels, ensuring that customers can maintain the normal operation of their production lines even during periods of raw material shortage.

8. Why choose Juyuan to supply EVA particles

As an international plastic raw material trader deeply involved in the industry, Juyuan offers:

  ・Global stable supply chain - Cooperating with multiple high-quality EVA manufacturers
  ・Multiple specifications in stock - meeting different VA content and process requirements
  ・Technical selection support - Provide matching suggestions for customer applications
  ・Reliable delivery - long-term inventory and flexible shipping methods
  ・Diversified packaging solutions - tailored to export transportation needs

Conclusión

EVA material plays an irreplaceable role in industrial manufacturing due to its flexibility, shock absorption and processing adaptability. By cooperating with Juyuan, you can not only obtain high-quality EVA particles, but also rely on our technical and logistics support to ensure the continuity and efficiency of production.