Applications of Hanwha TotalEnergies E150A EVA in Industrial Manufacturing

Our Hanwha TotalEnergies E150A ethylene-vinyl acetate copolymer (EVA) delivers reliable and process-stable performance for several advanced manufacturing industries. This section outlines the main industrial downstream fields where E150A demonstrates unique value, organized for customers seeking verified information for compliant, process-driven and sustainable end-product production.

1. Photovoltaic Encapsulant Film Manufacturing

E150A is a primary resin for solar panel encapsulant films, offering high transmittance and optimal crosslinking response that enables module durability even under long-term UV exposure and outdoor climate stresses. Its formulation requires strict adherence to global photovoltaic safety and reliability standards, and is precisely compounded to match the lamination process parameters of EVA-based encapsulant sheets used in crystalline silicon photovoltaic modules.

Industry compliance standards

• IEC 61215: Terrestrial Photovoltaic (PV) Module Qualification
• UL 1703: Flat-Plate Photovoltaic Modules and Panels (North America)
• IEC 61730: PV Module Safety Qualification
• REACH & RoHS (EU chemical and hazardous substance directives)

Typical usage ratio

• 70%–100% of total encapsulant resin mass; additive levels adjusted (~0.5–5.0%) for crosslinking agents and UV stabilizers

Downstream process integration

• Blended, pelletized and extruded to form encapsulant film rolls
• Films laminated onto PV cells under thermal compression (typically 140–160°C for 10–20 min)
• Crosslinking initiated post-lamination for gel content and adhesion control

Final product types

• Photovoltaic module encapsulation sheets
• Solar panel backsheets (multi-layer composite film)
• Thin-film cell lamination layers

2. Hot Melt Adhesive (HMA) Formulation

E150A serves as the main polymer backbone for hot melt adhesive production thanks to its low-temperature flexibility and compatibility with tackifiers and waxes. HMAs based on this copolymer tailor their composition for consumer packaging, bookbinding, and industrial product assembly adhesives, with manufacturers monitoring formulation and melt rheology in line with sector-specific regulations.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives, indirect food contact)
• EU Regulation (EC) No 1935/2004 for materials intended to contact food
• TAPPI T 559 (Bookbinding Adhesive Bond Strength)
• ISO 9001 (Quality Management Systems; required by major converters)

Typical usage ratio

• 25%–45% of total hot melt formulation—adjusted for required bond strength, open time, and flexibility, combined with waxes/plasticizers and resins

Downstream process integration

• Melt blended at 130–180°C with tackifiers and wax fractions
• Compounded, extruded, chipped, or pelletized based on application method (e.g., slot die, spray, or bead application)
• Quality control for viscosity, set time, and adhesion performance

Final product types

• Hot melt adhesives for packaging (carton closing, case sealing)
• Bookbinding glues (spine and side gluing)
• Disposable hygiene product assembly adhesives (e.g., diaper construction glue)
• Automotive interior assembly adhesives

3. Wire & Cable Insulation Compound Manufacturing

Within the wire and cable industry, E150A is compounded as a key resin for low voltage insulation and sheathing, where its thermal aging resistance, dielectric strength, and mechanical elasticity ensure safety compliance. Formulators control its blend with fillers, antioxidants, and fire-retardant additives, strictly overseeing dosing to achieve targeted cable performance under international electrical and building standards.

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 for hazardous substance limits
• CSA C22.2 for wire and cable products (Canada)

Typical usage ratio

• 40%–60% of cable insulation formulation, balance consists of fillers (e.g., ATH for flame retardance) and processing/stabilizer package

Downstream process integration

• Dry blended and melt-compounded in twin-screw extruders
• Direct extrusion onto copper/aluminum wire conductor
• Water bath cooling, online thickness and dielectric testing post-extrusion

Final product types

• Insulated low-voltage power and control cables
• Flexible appliance wires
• Data and telecommunication cable jackets
• Coaxial cable insulation layers

4. Foam Insole and Footwear Midsole Production

The physical foaming characteristics and elasticity of E150A make it a preferred base material for molded EVA footbeds and midsoles, particularly in athletic and casual footwear. Rigid QC is required to satisfy occupational and consumer safety regulations, with dosage fine-tuned depending on product density, hardness and rebound requirements integral to various footwear brands’ manufacturing recipes.

Industry compliance standards

• REACH Annex XVII for restricted substances
• EN ISO 20344/20347 for safety, protective and occupational footwear
• California Proposition 65 (Consumer goods, US market)
• GB/T 15107 (Chinese National Standard for sports shoes)

Typical usage ratio

• 60%–90% of total foam formulation mass, with additives including blowing agents (azodicarbonamide, 1-3%), crosslinkers (DCP, 1-2%), pigments and process aids depending on desired closed-cell structure

Downstream process integration

• Mixing in internal mixer or two-roll mill
• Molding via compression or injection at 160–180°C with integrated foaming and crosslinking cycles
• Post-mold trimming and inspection for hardness (Shore A/C), resilience and visual quality

Final product types

• Sports shoe midsoles and footbeds
• Flip-flop and sandal soles
• Antistatic and safety work boot insoles
• Orthopedic and comfort insoles

5. Flexible Packaging and Film Blown Products

Manufacturers depend on E150A to adjust sealability and mechanical toughness in multilayer film structures for consumer and industrial packaging. Major converters blend it with LDPE/LLDPE to achieve required clarity, heat-shrink, and low-temperature sealing properties, conforming to strict packaging contact regulations as well as processability requirements on high-speed blown film lines.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers for food contact)
• EU Regulation (EU) No 10/2011 (Plastic materials for food contact)
• GMP Regulation (EC) No 2023/2006 for film manufacture
• ASTM D3985 (Oxygen Transmission Rate for packaging films)

Typical usage ratio

• 5%–20% of film blend, increased for softer packaging or greater seal strength; performance tailored by line speed and targeted film characteristics

Downstream process integration

• Dry blending with LDPE/LLDPE (optionally with tie-layers and additives) before gravimetric dosing
• Extrusion on blown or cast film lines, with multi-layer coextrusion where barrier properties are necessary
• Online thickness, haze and seal strength QC

Final product types

• Heat-sealable snack and bakery packaging films
• Frozen food pouch linings
• Medical device packaging films (non-sterile contact)
• Shrink and stretch wrap rolls