Applications of Hyundai VA930 EVA in Industrial Manufacturing

Hyundai VA930 EVA is a high vinyl acetate content ethylene-vinyl acetate copolymer widely recognized for its reliable processing characteristics and flexible performance in several mature industrial sectors. As the direct manufacturer, we ensure stable quality that supports downstream technical needs across various critical fabrication processes.

1. Hot Melt Adhesive Formulation for Packaging & Bookbinding

Industrial hot melt adhesives for automatic packaging lines and high-speed bookbinding machines demand specific melt flow behavior and adhesion properties only achievable with select EVA grades. Due to its defined VA content and melt index, this material enables controlled open time, required flexibility, and adhesion strength for complex board, paper, and coated substrates during fast application cycles. Using its low gel fraction, formulators achieve smooth flow and uniform blending with tackifiers and waxes, delivering durable bonds within rigorous supply chain operations.

Industry compliance standards

• FDA 21 CFR 175.105 (Indirect food contact adhesives)
• EU Regulation No 10/2011 (Plastics in food contact)
• DIN EN 923 (Adhesives terminology and labelling)
• ISO 9001:2015 (Quality management for adhesives production)

Typical usage ratio

• 25–45% of total adhesive formulation, adjusted based on target viscosity/open time; vinyl acetate content drives initial tack and final bond flexibility.

Downstream process integration

• Direct pellet feeding into bulk blending melters equipped with agitators; compounding with hydrocarbon tackifiers, paraffin or microcrystalline wax, and stabilizers at 150–180°C before extrusion into blocks or pillows.

Final product types

• Case and carton sealing adhesives (packaging)
• Spine adhesives for perfect-bound books
• Envelope sealing adhesives
• Laminating adhesives for product labels

2. Solar Photovoltaic Encapsulant Sheet Manufacturing

Photovoltaic module encapsulants require material consistency to guarantee electrical insulation, transparency, and weather resistance for outdoor installations. The specific copolymer structure allows manufacturers to formulate sheets with excellent light transmission and edge sealing performance. Thermal lamination and crosslinking are tuned to the encapsulant’s melt index and vinyl acetate content, helping to avoid delamination or premature yellowing in both crystalline and thin-film solar modules during accelerated aging cycles.

Industry compliance standards

• IEC 61215 / IEC 61730 (Photovoltaic module safety & performance)
• UL 1703 (Flat-plate PV modules and panels)
• RoHS 2011/65/EU Directive (Restriction of hazardous substances)
• EN 50583-2 (PV in construction, BIPV sector)

Typical usage ratio

• 60–90% of total encapsulant sheet composition, with crosslinkers and UV absorbers added based on required thermal aging and optical clarity specifications.

Downstream process integration

• Fed into twin-screw extruders or calendering lines with process temperatures 140–160°C; conversion to sheet or film form via chilling rolls, followed by crosslinking with organic peroxides prior to module lamination.

Final product types

• Photovoltaic module encapsulant sheets
• Backsheet intermediate layers for PV panels
• Edge sealing films for solar glass laminates

3. Footwear Injection Moulded Soles

EVA-based compounds provide controlled flexibility, cushioning, and abrasion resistance essential for midsoles, outsoles, and insole foams in sport, leisure, and safety footwear. Blending with blowing agents and process aids, downstream factories achieve low-density, resilient foam materials that deliver rebound and compression set tailored to footwear sector demands. Production yields are influenced by pellet consistency, melt index uniformity, and prevention of scorching or burnt odor during closed-mold injection.

Industry compliance standards

• REACH EC No 1907/2006 (Chemical safety in finished footwear)
• ISO 20871:2018 (Outsole abrasion and flex resistance)
• GB/T 15107-2013 (China National Footwear Product Standard)
• Oeko-Tex Standard 100 (Textile and polymer product safety)

Typical usage ratio

• 45–70% of injection compound; dosing varies with hardness and resilience targets; often blended with natural or synthetic rubber and up to 20% filler content for sole formulation.

Downstream process integration

• Pellet pre-drying (if required), mixing with additives and blowing agents in high-intensity mixers, subsequent injection into steel molds at 160–195°C under high pressure; demolding and cooling complete the cycle for each outsole or foam block.

Final product types

• Sport and running shoe midsoles
• Work and safety footwear outsoles
• Slipper and sandal foam soles
• Children’s molded shoe parts

4. Wire & Cable Insulation/Jacketing Compounds

Elastomeric properties of the copolymer support the robust electrical insulation and environmental resistance demanded in low- and medium-voltage power and signal cable production. Pellet purity and melt homogeneity promote stable extrusion characteristics, ensuring the insulation layer forms without voids or surface defects even at high line speeds. Downstream formulators tailor the EVA blend ratio to balance flame retardancy, flexibility at subzero temperatures, and compatibility with crosslinking agents.

Industry compliance standards

• IEC 60502-1 (Power cables with extruded insulation, requirements)
• UL 62 / UL 1581 (Flexible cords and appliance wiring)
• RoHS Directive 2011/65/EU (for lead-free insulation)
• VDE 0207 (Thermoplastics insulation and sheathing for cables)

Typical usage ratio

• 28–55% as base resin in insulation or jacketing compounds; higher vinyl acetate increases low temperature flexibility, with loading adjusted based on flame retardants, fillers, and anti-UV additives.

Downstream process integration

• High-speed single or twin-screw extrusion systems; resin and additives compounded at 120–140°C, then extruded directly onto conductor cores or braided wires; subsequent cooling to set the insulation or jacket thickness.

Final product types

• Flexible electrical wire insulation
• Signal and data cable jacketing
• Automotive harness insulation
• Low-smoke, halogen-free flame retardant power cables

5. Film Extrusion for Greenhouse & Agricultural Covers

EVA copolymers are foundational to multilayer agricultural films designed for light diffusion, anti-fogging, and UV stability in protected horticulture. Agricultural processors benefit from reliable optical clarity, flexibility at sub-zero temperatures, and excellent sealability, which depend strongly on consistent vinyl acetate content. Film converters adjust the EVA blend and stabilization package according to climate zone and crop requirements, seeking long field performance and mechanical toughness through many seasons.

Industry compliance standards

• EN 13206:2023 (Agricultural plastic films for greenhouse covering)
• ISO 18604:2013 (Recycling and environmental assessment)
• GOST 10354-82 (Plastic film for technical applications, CIS markets)
• ISO 9001:2015 (Agrifilm quality control systems)

Typical usage ratio

• 8–20% in multilayer film extrusion, adjusted with LDPE/LLDPE grades depending on required tear resistance and thermal insulation; anti-fog and UV additives are incorporated as co-extruded layers or masterbatches.

Downstream process integration

• Blending into gravimetric dosing systems for blown or cast film extrusion; processed at 130–150°C, bubble inflating to stretch film to target gauge; secondary trimming, corona treatment, and rewinding for delivery to agricultural users.

Final product types

• Greenhouse covering films
• Tunnel and row-cover films
• Silage and mulch films
• Solarization and fumigation barrier films

6. Polymer Modification for Toughened Masterbatches

Compounders incorporate the copolymer into resin masterbatches to improve impact resistance, processability, and surface finish in thermoplastics, including high-clarity PP and PE goods. The consistent melt index allows for precise dosing in twin-screw extruders, while the polar vinyl acetate component enhances blend compatibility and pigment dispersion needed for colored or functionalized masterbatches. These masterbatches provide downstream plastics processors with the flexibility for injection molding, blow molding, or sheet extrusion conversion.

Industry compliance standards

• ISO 10993-5:2020 (Biological evaluation when modifying resins for medical applications)
• ISO 11469:2016 (Plastics identification and marking system)
• EN 15343:2007 (Plastics recycling traceability)
• FDA 21 CFR 177.1520 (Polymers for food contact, if relevant to end use)

Typical usage ratio

• 10–30% of the total masterbatch, depending on impact modification target and the polymer matrix; reduced dosage when enhancing only surface finish or minor flexibility.

Downstream process integration

• Feeding into twin- or multi-screw compounders with other polymers, compatibilizers, and pigments; homogenization above 130°C to produce pellets or granules for resale or downstream auto, appliance, or industrial plastics manufacture.

Final product types

• Impact-modified polyolefin masterbatches
• Color masterbatches for injection molding
• Slip and anti-block masterbatches for film extrusion
• Functionalized blends for technical compounding