Ethylene-Vinyl Acetate (EVA) resin is a versatile thermoplastic copolymer synthesized by copolymerizing ethylene and vinyl acetate monomers. Its properties (flexibility, toughness, melting point, etc.) vary significantly with vinyl acetate (VA) content (typically 5%–40% by weight), making it suitable for a wide range of industrial applications.

PRODUCT PROPERTIES

Property	Details
Melting Point	30–110 °C (varies with VA content; no sharp melting point, softens over a temperature range)
Density	0.92–0.95 g/cm³ (at 25 °C)
Physical Form	White/off-white pellets, granules, or powder; semi-crystalline solid
Main Applications	Hot-melt adhesives, photovoltaic encapsulant films, flexible packaging films, shoe soles & foam materials, wire & cable insulation, automotive parts, agricultural films, molded goods
InChI	1S/C4H6O2.C2H4/c1-2-3-4(5)6;1-2/h2H,1,3H2,(H,5,6);1-2H2
InChIKey	DQXBYHZEEUGOBF-UHFFFAOYSA-N
SMILES	C=C.CC(=O)OC=C
EINECS Number	607-457-0
EPA Chemical Information	CAS Number: 24937-78-8; Molecular Formula: (C₂H₄)ₙ(C₄H₆O₂)ₘ; Molar Mass: Variable (depends on polymerization degree)

PRODUCT USES

Adhesives: Used in hot-melt adhesives for packaging, bookbinding, and woodworking (optimal at ~11% VA content).
Packaging & Films: Flexible films, cling wraps, shrink films, and agricultural greenhouse films (good flexibility and weather resistance).
Footwear: Midsole, outsole, and cushioning foams for sports shoes, sandals, and casual footwear (high elasticity and shock absorption).
Photovoltaics: Encapsulant films for solar panels (excellent UV resistance and electrical insulation).
Wire & Cable: Insulation and jacketing materials (good flexibility and low-temperature performance).
Automotive: Interior trims, gaskets, and molded components (toughness and chemical stability).
Foam Products: Cushioning, sports equipment, and packaging foams (lightweight and shock-absorbent).

ABOUT US

Shandong Hengyi Chemical Co., Ltd. is a enterprise of chemical business, with a total output of 60 million tons and over 3,000 employees. The company's products cover ten major areas, including new energy and new materials, chemical fertilizers, organic amines, acetic acid and its derivatives, polyols, synthetic resins, polyurethane, fragrances and flavors, additives and catalysts, and inorganic chemicals, totaling over 100 products.

PACKAGING AND TRANSPORTATION

Our company offers diversified, standardized, and customized packaging services for products. All packaging strictly complies with usage and transportation safety regulations. We support various formats such as standard bags, drums, and ton bags, and can flexibly adjust specifications, materials, and packaging methods according to customer needs to meet different usage scenarios such as warehousing, transportation, and export. Our products are safe, reliable, convenient, and practical.

FAQ

Q: Do you provide technical data and usage guidance?

A: Product manuals, technical parameters, MSDS and other documents are provided, together with professional pre-sales technical consultation and application guidance.

Q: Can you provide samples?

A: Samples are available for some products. Please consult customer service for specific application, quantity and cost.

Q: What should I do if the packaging is damaged upon receipt?

A: Please inspect goods upon receipt. If damage or leakage is found, provide photos for verification and we will handle it promptly.

Q: Do you support export and provide customs clearance documents?

A: Export packaging is supported. Customs clearance documents such as MSDS, packing list and commercial invoice are available to assist with cross-border logistics.

Q: How long will it take to deliver after ordering?

A: Regular in-stock items will be shipped within 1–3 working days. For customized packaging or special orders, delivery time shall be negotiated by both parties.

Q: What is the MOQ of your products?

A: Small-batch samples and large-volume orders are both supported. Specific MOQ can be negotiated based on product model and packaging type.

Q: Is transportation safe and compliant?

A: Transportation is carried out in strict accordance with regulations for general or dangerous chemicals, with qualified logistics and protective measures to ensure full-process safety.

Q: How to store chemical products properly?

A: Store in a cool, dry and ventilated area, away from fire, heat and strong corrosive substances. Store by category to avoid mixed storage risks.

Q: How is product quality guaranteed?

A: Products are produced and tested in strict accordance with industry standards. Quality inspection reports and certificates are available to ensure stable and reliable quality.

Q: Do you support customized packaging?

A: Customization is available. We can customize size, material, label and sealing method according to customer requirements for different storage, transportation and export scenarios.

Q: Is the packaging compliant with transportation and export safety requirements?

A: All packaging complies with safety regulations for storage, transportation and export, with qualified sealing and firmness, suitable for land, sea and other logistics scenarios.

Q: What types of packaging do you provide?

A: We provide regular packaging such as bags, drums and ton bags, as well as standardized and customized packaging. Specifications, materials and sealing methods can be adjusted flexibly according to product characteristics.

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