Applications of Hyundai VA920 EVA in Industrial Manufacturing

As a manufacturer of Hyundai VA920 EVA, we supply this ethylene-vinyl acetate copolymer to industrial partners for advanced processing in critical downstream sectors. Below we highlight real, high-value application channels, including compliance, formula practice, integration points, and end product use based on typical customer requirements.

1. Photovoltaic (PV) Module Encapsulation

Leading PV panel producers rely on VA920 grade EVA for laminating and encapsulating solar cells due to its adhesive, flexible character and high light transmittance. In the encapsulation process, producers integrate EVA sheets as a primary interlayer, protecting cells and enhancing module durability. Controlled vinyl acetate content ensures optimal adhesion and UV resistance, meeting evolving energy industry reliability standards.

Industry compliance standards

• IEC 61215: Terrestrial photovoltaic modules – Design qualification and type approval
• UL 1703: Standard for Flat-Plate Photovoltaic Modules and Panels
• RoHS (Restriction of Hazardous Substances Directive 2011/65/EU)
• REACH Regulation (EC) No 1907/2006

Typical usage ratio

• Sheet thickness standardized at 0.45 mm to 0.55 mm per module; adjusted by cell technology and desired mechanical properties

Downstream process integration

• EVA pellets are extruded into films, pre-cut, and then stacked on or under silicon cell strings during panel lay-up
• Crosslinking and lamination under vacuum to ensure encapsulation around cells before frame assembly

Final product types

• Polycrystalline and monocrystalline PV modules
• Thin-film solar panels
• Building-integrated photovoltaic sheets

2. Hot Melt Adhesives for Packaging and Bookbinding

Industrial adhesive plants blend VA920-based EVA with tackifiers and waxes to formulate thermoplastic hot melt systems demanded by automated packaging, carton sealing, and book spine binding. The selected copolymer enables rapid set time and controlled viscosity, ensuring high line speed performance and reliable substrate adhesion across diverse production environments.

Industry compliance standards

• FDA 21 CFR 175.105 for adhesives in food packaging
• EN 923:2005+A1 (Adhesives terminology and definitions)
• ISO 9001:2015 Quality Management Systems
• REACH Regulation (EC) No 1907/2006 for chemical safety

Typical usage ratio

• 20%–40% EVA as base resin in blended formulations
• Ratio adjusted to achieve desired melt viscosity, open time, and bond strength depending on end use

Downstream process integration

• Pellets compounded in heated tanks with resins, flow improvers, and stabilizers, then extruded or pelletized for production
• Directly melted and applied by automated nozzles in high-speed packaging or bookbinding lines

Final product types

• Case sealants for corrugated boxes
• Spine adhesives for paperback books and catalogues
• Labeling and graphic mounting adhesives

3. Wire & Cable Insulation and Sheathing Compounds

Cable extrusion manufacturers select this EVA for insulation and jacketing formulations on low- and medium-voltage wires, telecommunications lines, and flexible cables. Controlled melt index and VA content let compounders fine-tune flexibility, dielectric strength, and flame resistance for both general industrial and specialty electrical installations.

Industry compliance standards

• UL 1581: Reference Standard for Electrical Wires, Cables, and Flexible Cords
• IEC 60228: Conductors of insulated cables
• RoHS Directive 2011/65/EU
• EN 50363: Insulating and sheathing compounds for cables

Typical usage ratio

• Base polymer content 50%–80% in insulation blends
• Loaded with fillers, antioxidants, flame retardants as required for application class

Downstream process integration

• EVA is homogenized with compounding additives using twin-screw extruders
• Molten compound extruded around wire cores for insulation or over-application as a protective jacket

Final product types

• Flexible appliance cords
• Automotive wire harnesses
• Telecom and control cables

4. Footwear Injection Molding and Foamed Soles

Major footwear brands use this resin as the basis for lightweight, shock-absorbing soling material. In foam EVA formulations, processers combine the resin with blowing agents and other plasticizers to achieve specific resilience and cushioning for performance, comfort, and anti-slip outsoles. Injection and compression molding methods ensure precise cell structure and mechanical properties are achieved per footwear type.

Industry compliance standards

• ISO 20871:2018 (Footwear – Outsoles – Test methods for abrasion resistance)
• REACH Regulation (EC) No 1907/2006
• ISO 9001:2015 Quality Systems for footwear production

Typical usage ratio

• Core load 60%–90% by weight in expanded compound, with remainder from fillers and expanders
• Ratio modified for desired foam density and compression set

Downstream process integration

• Compound melted and mixed with blowing agent in injection or compression molding lines
• Molded into sole units, midsoles, or full outsole structures before assembly to uppers

Final product types

• Sports shoe midsoles and outsoles
• Slippers, sandals, and specialty casual footwear
• Work boot and safety footwear bases

5. Film Products for Agricultural and Industrial Use

Producers of specialty films apply this EVA for greenhouse covers, soil protection sheets, and packaging films where high flexibility, impact resistance, and weather stability are required. Adjusted blends yield optimal transparency and mechanical performance, supporting both single-layer and co-extruded film lines in the agricultural and industrial sectors.

Industry compliance standards

• ISO 18604:2013 (Packaging and the environment – Material recycling)
• EN 13206:2001 (Plastic films for agricultural use – Specification and test methods)
• Directive 94/62/EC on Packaging and Packaging Waste
• REACH Regulation (EC) No 1907/2006

Typical usage ratio

• 30%–80% EVA in base formulations, blended with LDPE or LLDPE as needed for targeted properties
• Modified per line speed, film thickness, and physical demands

Downstream process integration

• Resin pelletized and fed with co-polymers into blown film or cast film extrusion systems
• Film thickness adjusted by die and cooling ring selection for targeted end use

Final product types

• Greenhouse and tunnel films
• Mulching sheets for field crops
• Multiwall industrial packaging films

6. Toy and Educational EVA Foam Products

Manufacturers of children’s play mats, puzzle blocks, and learning tools employ this grade as a safe, flexible, and non-toxic foam base. Stringent material selection ensures compliance with direct child contact standards, while expanded sheets and die-cut foam shapes deliver impact protection and sensory attributes for large-scale educational and recreational deployment.

Industry compliance standards

• EN 71-3:2019 (Safety of toys – Migration of certain elements)
• ASTM F963 (Standard Consumer Safety Specification for Toy Safety)
• REACH SVHC candidate list compliance

Typical usage ratio

• Main resin is 75%–95% of foam formulation; remaining content is color masterbatch, anti-microbial agents, or UV stabilizers
• Ratio selected based on foam density and required resilience

Downstream process integration

• EVA compounded with blowing agent and additives, then sheet-extruded or block-molded for post-processing
• Final shapes are CNC-cut, die-cut, or assembled using heat welding for finished toys and mats

Final product types

• Soft construction blocks and puzzle mats
• Protective play flooring
• Foam craft components for educational kits