Description

Ethylene-Vinyl Acetate Copolymer (EVA) is a versatile thermoplastic elastomer formed by the copolymerization of ethylene and vinyl acetate monomers. Its key value lies in the balance of flexibility, toughness, and excellent low-temperature performance imparted by the vinyl acetate content. This material is essential for manufacturers in the packaging, footwear, automotive, and solar energy industries seeking durable, processable polymers for a wide range of applications.

Application

• Hot Melt Adhesives: A primary application due to its excellent adhesion, low melting point, and flexibility.
• Flexible Packaging & Films: Used for stretch film, agricultural film, and food packaging for its clarity, toughness, and sealability.
• Footwear: Serves as a key component in midsoles, outsoles, and sandals for its lightweight cushioning and resilience.
• Solar Panel Encapsulation: Critical as an encapsulant layer for photovoltaic cells, providing durability, optical clarity, and weather resistance.
• Wire & Cable Insulation: Used as an insulating and jacketing material for its flexibility and stress-crack resistance.
• Foam Products: Expanded EVA foam is used in sports equipment, yoga mats, and padding for its shock absorption and buoyancy.
• Automotive Parts: Employed in interior trim, seals, and gaskets for its noise dampening and flexibility.
• Modifiers for Plastics & Asphalt: Used to improve the impact resistance of other polymers and the flexibility of asphalt for roofing.

Basic Information

Product Name	Ethylene-Vinyl Acetate Copolymer
CAS No.	24937-78-8
Molecular Formula	(C2H4)x(C4H6O2)y
Molecular Weight	Varies by Vinyl Acetate (VA) content and grade
Synonyms	EVA; EVA Copolymer; Ethylene/Vinyl Acetate Copolymer; Poly(ethylene-co-vinyl acetate); Acetic Acid Ethenyl Ester, Polymer with Ethene; VAE; EVAC; ATEVA; ELVAX; ULTRATHENE
EINECS	246-563-3

Quality Control

Our Ethylene-Vinyl Acetate Copolymer is manufactured under a strict quality management system. Each batch is tested against key parameters such as Vinyl Acetate content, melt flow index (MFI), density, and tensile properties to ensure consistent performance. Certificates of Analysis (COA) detailing these specifications are available for every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. For long-term storage, a nitrogen blanket is recommended to prevent oxidation.

Specification

Item	Specification
Appearance	White translucent pellets or granules
Vinyl Acetate (VA) Content	5% - 40% (Customizable)
Melt Flow Index (MFI)	1.5 - 400 g/10 min (190°C, 2.16 kg)
Density	0.92 - 0.95 g/cm³
Vicat Softening Point	40 - 80 °C
Tensile Strength	10 - 30 MPa
Elongation at Break	300 - 800 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.