Applications of Hanwha TotalEnergies E182L EVA in Industrial Manufacturing

Hanwha TotalEnergies E182L EVA (Ethylene-Vinyl Acetate Copolymer) is widely used in multiple industrial sectors due to its balanced elasticity, transparency, and adhesion properties. Our manufacturing processes and product quality support customers globally in demanding downstream applications where consistent performance and compliance are critical throughout the entire value chain.

1. Photovoltaic Sheet Lamination for Solar Modules

E182L serves as the critical encapsulant resin in solar panel lamination lines, providing essential adhesion between cells and glass while maintaining long-term weatherability. Clients in the photovoltaic domain rely on our EVA to meet optical transmission and damp-heat performance, starting from the resin dosing and extrusion stages up through high-pressure vacuum lamination. The downstream panels must pass rigorous certification, requiring careful resin ratio adjustment based on cell type, sheet thickness, local climate simulations, and field durability testing as part of quality assurance.

Industry compliance standards

• IEC 61215: Terrestrial photovoltaic modules design qualification and type approval
• UL 1703: Safety standard for flat-plate photovoltaic modules and panels
• IEC 61730: PV module safety qualification

Typical usage ratio

• 60–75 wt% of encapsulant sheet formulation; layer thickness adjusted between 0.45 - 0.65 mm according to cell architecture

Downstream process integration

• Mixing, granulation, and co-extrusion to produce EVA sheets; resin pellets introduced prior to melt extrusion, then sheets pass through calendaring and vacuum lamination between glass and backsheet during module assembly

Final product types

• Monocrystalline and polycrystalline PV panels
• Bifacial solar modules
• Flexible thin-film solar sheets

2. Hot Melt Adhesive Compounding

Industrial adhesive producers use E182L as a primary copolymer in formulating hot melt adhesives, anchoring high-performance properties such as flexibility, peel strength, and compatibility with tackifiers and plasticizers. The exact resin dosage is carefully tailored during compounding to balance bond strength and viscosity for each production batch, whether for book-binding, packaging, or woodworking adhesives. Inspection routines include checking melt index and color consistency upon resin feed and before final pelletizing. The finished adhesives must consistently meet diverse compliance requirements specific to both food contact and manufacturing safety regulations.

Industry compliance standards

• FDA 21 CFR 175.105 (United States) for adhesives in indirect food contact
• EU 10/2011: Plastics materials and articles intended to come into contact with food
• ISO 9001: Quality management systems for manufacturing

Typical usage ratio

• 25–45 wt% in hot melt adhesive base; ratio varies by application, from carton sealing (higher polymer, lower resin) to bookbinding (higher resin, more tackifiers)

Downstream process integration

• EVA resin introduced directly into compounding extruders or Banbury mixers with waxes, resins, and stabilizers; after homogenizing, the formulation is pelletized, cooled, or directly pumped to granulation or molding stations

Final product types

• Hot melt adhesive sticks and pellets
• PSA tapes and labels
• Bookbinding adhesives for automated lines
• Packaging case/sealing adhesives

3. Injection and Extrusion Molding for Foam Shoe Soles

Shoe manufacturers select E182L for its balance of hardness and flexibility to produce EVA foam midsoles and outsole components, especially in athletic footwear, sandals, and occupational shoes. During formulation, the polymer content is optimized together with blowing agents and crosslinking additives to target end-use comfort and resilience. Quality monitoring includes foam density, shrinkage, and uniformity, starting from resin blending through mold injection. Finished soling units require compliance to toxicity and mechanical standardization applicable to consumer safety and performance specifications.

Industry compliance standards

• EN 71-3: Toy Safety for footwear components
• REACH Regulation EC 1907/2006: SVHC compliance for chemicals in end-user goods
• ISO 20871: Footwear—Test methods for outsoles/abrasion resistance

Typical usage ratio

• 70–85 wt% in foam shoe sole formulation; ratios depend on target hardness and elastomeric properties

Downstream process integration

• EVA resin pre-mixed with foaming agents, then fed to injection or extrusion foaming lines; crosslinking occurs during molding and subsequent curing processes

Final product types

• Athletic shoe midsoles
• Children’s foam sandals
• Antistatic safety shoe outsoles
• Beach flip-flop bases

4. Wire and Cable Insulation Compounding

Insulated wire and cable producers rely on our EVA for its dielectric performance, chemical resistance, and processing stability in the co-extrusion of low-voltage wire jackets and sheathing. Formulators adjust the proportion of base copolymer relative to flame retardants or plasticizers, considering local regulatory flame standards and electrical conductivity tests. Process integration starts from dry blending, moves to extrusion lines for layer application, and finishes with in-line crosslinking or irradiation curing. Cable insulation compounds must pass electrical, mechanical, and migration performance audits to ensure full downstream compliance.

Industry compliance standards

• UL 1581: Reference standard for electrical wires, cables, and flexible cords
• IEC 60502-1: Power cables with extruded insulation and their accessories
• RoHS Directive 2011/65/EU: Restriction of Hazardous Substances

Typical usage ratio

• 22–38 wt% in insulation formulation for sheathed wires; increased when higher flexibility or dielectric is required

Downstream process integration

• Resin loaded with stabilizers and fire retardants, then compounded and fed into wire extrusion lines; secondary crosslinking or irradiation follows depending on cable specifications

Final product types

• Building wire insulation
• Flexible automotive cable jackets
• Consumer electronics cord coatings

5. Film and Packaging Co-Extrusion

Producers of flexible packaging films incorporate E182L into multilayer co-extruded films for improved sealing characteristics, puncture resistance, and optical properties. Downstream film lines receive tailored resin ratios based on film thickness, laminate requirements, and mechanical targets such as tear or shrink resistance. The formulation stage involves blending with PE or specialty copolymers, moving immediately to blown film or cast film extrusion under precise temperature profiles. Finished packaging must adhere to international food contact and migration controls, ensuring suitability for direct and indirect food packaging applications.

Industry compliance standards

• FDA 21 CFR 177.1350: Ethylene-vinyl acetate copolymers for food packaging
• EU Directive 10/2011: Plastics for food contact
• GB 9685: China National Food Safety Standard for use of food contact additives

Typical usage ratio

• 7–25 wt% as sealing/interlayer; proportion fine-tuned based on co-extrusion layer function (sealant, core, or adhesion layer)

Downstream process integration

• Dry blending and inline mixing with LDPE/LLDPE, direct feeding into blown/cast film lines; thickness control and surface properties verified online before slitting or lamination

Final product types

• Peelable food tray lidding films
• Shrink film and bag packaging
• Pharmaceutical blister and unit-dose pouches