Applications of Hanwha TotalEnergies 2030 EVA in Industrial Manufacturing

Hanwha TotalEnergies 2030 EVA is an ethylene-vinyl acetate copolymer developed for advanced polymer blending, film modification, and compounding applications. Its controlled VA content and processing stability meet the requirements of multiple industrial sectors. Below are key downstream uses, with details on standards, formulation, integration processes, and resulting end products.

1. Solar Photovoltaic Encapsulant Sheets

Solar panel module manufacturers use EVA as the primary encapsulant to bond, insulate, and protect photovoltaic cells from moisture, dust, and mechanical stress. Its compatibility with silane crosslinking agents and specific melt index supports automated sheet extrusion, crosslinking, and lamination. Process reliability is crucial for panel yield and field durability. The resin must perform under high-UV exposure and meet international specifications for transparency, climate resistance, and adhesion.

Industry compliance standards

• IEC 61215 (Crystalline Silicon Terrestrial PV Modules)
• UL 1703 (Standard for Flat-Plate Photovoltaic Modules and Panels)
• EN 50548 (PV Connectors and Junction Boxes—Encapsulation Materials)
• ISO 9001 (Quality Management Systems—Mandatory for solar module manufacturing)

Typical usage ratio

• Encapsulant sheet: 65–75% EVA by weight
• Co-extruded formula adjusted for VA content (28–33%)
• Silane crosslinking agent: 0.3–1.2%
• UV stabilizers and antioxidants: 0.2–0.7% total

Downstream process integration

• Pellet dry blend fed into twin-screw extruder
• Film calendaring to 0.45–0.55 mm thickness
• Thermal crosslinking under pressure/vacuum in a laminator with solar cell stacks
• Shrinkage and adhesion QC test after module lamination

Final product types

• PERC silicon solar panels (mono/polycrystalline)
• Glass/glass and glass/backsheet PV modules
• Flexible thin-film solar panels
• BIPV solar construction elements

2. Hot Melt Adhesives for Packaging and Bookbinding

EVA is the base polymer in hot melt adhesive formulations for high-speed carton sealing, book spine glue, and product assembly. Its vinyl acetate content defines flexibility, tack, and open time. Industrial customers blend EVA pellets with waxes, resins, and tackifiers to meet viscosity and set time targets for automated glue lines. Quality consistency and regulatory compliance are critical for food packaging and consumer goods.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives in Food Packaging—USA)
• BfR XXI (Adhesives for Food Contact—Germany/EU)
• ISO 10289 (Evaluation of Adhesion in Packaging)
• REACH SVHC Exclusion List (for adhesive compounding)

Typical usage ratio

• EVA resin: 35–60% of adhesive mass
• Wax (PE, Fischer-Tropsch, microcrystalline): 20–35%
• Tackifiers (hydrocarbon or natural): 15–30%
• Stabilizers and pigments: 1–3%

Downstream process integration

• Melt compounding in a jacketed mixer (120–160°C)
• Filtration, granulation, and packaging of hot melt blocks
• Melt application at nozzle or roller coater in end-user plant
• Adhesion and open time measured by ASTM D1002 or D1876

Final product types

• Corrugated carton closure adhesives
• Book spine glues (perfect, saddle, or burst binding)
• Hygiene product assembly adhesives
• Bag and case sealing hot melts

3. Wire and Cable Polyolefin Compounds

Cable extrusion compounding companies use EVA for insulating and sheathing layers in low-voltage cables, data cables, and specialty wiring. It enhances flexibility, flame retardancy, and stress crack resistance when compounded with PE, fillers, and flame retardants. Stable melt flow and low gel content permit continuous cable coating at high line speeds. End products must meet electrical, fire, and toxicity norms for safe infrastructure and equipment cabling.

Industry compliance standards

• IEC 60332-1 (Flame Retardant Test for Wires and Cables)
• RoHS 2011/65/EU (Restriction of Hazardous Substances in Cables)
• UL 1581 (Electrical Wires, Cables, and Flexible Cords)
• EN 50363 (Insulating and Sheathing Compounds)

Typical usage ratio

• EVA: 20–42%, adjusted for VA content (18–33%)
• Polyethylene or EBA: 25–60% (physical blends or alloys)
• Flame retardants (ATH, Mg(OH)₂): 30–45%
• Processing aids and anti-dripping agents: 1–2%

Downstream process integration

• Premixing pellet blends in high-speed mixers
• Direct extrusion onto copper or aluminum conductors
• Cable cooling, crosslinking (where required), and surface inspection
• Batch QC: dielectric and tensile testing (IEC 60243, ISO 527)

Final product types

• Indoor low-voltage power cable insulation
• LAN, coaxial, and communication cables
• Halogen-free flame retardant building wires
• Control and instrumentation cables

4. Foam Sole and Midsole Compounds for Footwear

Shoe material processors blend EVA with blowing agents, crosslinkers, and fillers to manufacture resilient foam sheets for athletic, safety, and casual footwear soles. Control of cell structure and hardness is achieved through compounding and molding processes. The resin’s processability and cushioning effect support both compression and injection molded foams. End-use quality is monitored for slip resistance, aging, and mechanical performance as per global footwear standards.

Industry compliance standards

• ISO 20871 (Footwear—Outsole Abrasion Testing)
• SATRA TM77 (Footwear—Flexing Resistance Test)
• EN ISO 20345 (Personal Protective Equipment—Safety Shoes)
• REACH Annex XVII (PAHs and hazardous compounds)

Typical usage ratio

• EVA copolymer: 60–80% of compound mass
• Blowing agent (azodicarbonamide or similar): 3–12%
• Crosslinker (DCP, others): 1.2–2.2%
• Fillers and pigments: 5–25%, adjusted for application

Downstream process integration

• Melt blending and dispersion in internal mixers or kneaders
• Sheet extrusion or direct injection into metal molds
• Thermal foaming and crosslinking in staged ovens
• Finished foam sheet die-cutting and surface finishing

Final product types

• Sports shoe midsoles and outsoles
• PU/EVA blend soling for industrial safety shoes
• Slippers and sandals
• Anti-fatigue shoe inserts and orthotics

5. Flexible Film and Sheet for Food and Pharma Packaging

EVA is incorporated in multilayer coextruded films and sheets for packaging perishable foods, medical devices, and pharmaceuticals. Its polarity, heat sealability, and compatibility with LDPE or other barrier resins enable strong, low-temperature seals and puncture resistance. Processors ensure resin formulation meets migration, chemical resistance, and GMP requirements for food and healthcare compliance.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymer—Food Contact)
• EU Regulation (EU) No 10/2011 (Plastic Food Contact Materials)
• ISO 15378 (GMP for Packaging Materials—Pharma)
• EN 868 (Packaging for Terminally Sterilized Medical Devices)

Typical usage ratio

• EVA: 8–26% in film structure, tailored for flexibility/sealing
• LDPE or LLDPE: 55–85%, adjusted for barrier/block content
• Barrier layer (EVOH, PA): 2–13% where required
• Processing additive content under 1.5%

Downstream process integration

• Blend pellet feed for coextrusion into 3–7 layer structures
• Chill roll or blown film process for 15–150 micron thickness range
• Quality checks: seal strength, puncture test (ASTM F88, D882)
• Finished film slitting, printing, and bag fabrication

Final product types

• Vacuum pouches for meat and cheese packaging
• Blister packs and strip packs for pharmaceuticals
• IV fluid and parenteral bags
• Medical device overwrap and peelable lidding film