Applications of Hanwha TotalEnergies E120A EVA in Industrial Manufacturing

Hanwha TotalEnergies E120A EVA, a high-performance ethylene-vinyl acetate copolymer, delivers consistency and process reliability in several specialized industrial manufacturing sectors. As an upstream producer, we ensure stringent quality control and full traceability from raw input to downstream use. The following application scenarios reflect major production environments where this material is utilized, along with compliance, formulation, integration, and finished products details specific to industrial practice.

1. Photovoltaic Encapsulation Sheets for Solar Modules

EVA copolymer plays a critical role in the production of encapsulant sheets for crystalline silicon solar modules. Processors prefer Hanwha TotalEnergies E120A grade for its balanced melt flow and film clarity, essential for optical transmission and extended module durability under ultraviolet exposure. Sheet extrusion and curing processes require precise material characteristics for lamination, which affects module electrical performance and lifetime.

Industry compliance standards

• IEC 61215 (Crystalline Silicon Terrestrial Photovoltaic Modules – Design Qualification and Type Approval)
• UL 1703 (Flat-Plate Photovoltaic Modules and Panels)
• TÜV SÜD PV Quality Standard
• RoHS (2011/65/EU Restriction of Hazardous Substances Directive)

Typical usage ratio

• Used at 68-75% total weight in co-extruded sheet formulations; concentration adjusted based on desired crosslinking and final sheet thickness (0.45–0.55 mm) requirements

Downstream process integration

• Introduced during twin-screw or flat-die film extrusion, with additives or UV absorbers added inline; sheets undergo vacuum lamination at 140–155°C in composite stack, followed by crosslinking and module assembly

Final product types

• Photovoltaic encapsulant sheet rolls
• Crystalline silicon solar panels (mono- and poly- types)
• Thin-film solar modules (standalone or within cell encapsulation)
• Protective backsheets for advanced PV panels

2. Hot Melt Adhesive Production for Packaging and Bookbinding

Downstream adhesive producers use E120A EVA for hot melt adhesive (HMA) manufacturing due to its strong compatibility with tackifiers and waxes, low odor, and stable thermal behavior. The balance of vinyl acetate content ensures both adhesive flexibility and reliable set speed, critical in high-throughput packaging, labeling, and bookbinding lines. Strict melt viscosity and open time control allow for continuous automated application.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for Indirect Food Contact – USA)
• EN 923 (Adhesives: Terms and Definitions)
• ISO 9001:2015 (Quality Management Systems for manufacturing)
• REACH Regulation (EC 1907/2006) registration and SVHC screening

Typical usage ratio

• Blended at 25–45% by weight in hot melt adhesive compounds; variation occurs depending on the end use—for example, higher EVA loadings in spine glues for books, lower in carton sealing adhesives

Downstream process integration

• Conveyed as pellets to high-shear mixers with resins and waxes, then melted and extruded through hot-melt lines; precise feed ratio managed for target viscosity and bond strength during granulation or block-molding

Final product types

• Pressure-sensitive adhesive sticks
• Case and carton sealants for food and beverage packaging
• Perfect binding adhesives for book manufacturing
• Hot melt adhesives for labeling and envelope sealing

3. Cable Compounding and Wire Insulation

Hanwha TotalEnergies E120A serves as a base polymer for low-voltage cable compound blends, providing strong insulation, flexibility, and processability, especially in applications requiring flame retardancy or weather protection. EVA-based compounds ensure uniform melt dispersion of fillers and insulation additives, supporting the manufacture of safe, durable wiring solutions in compliance-heavy industries.

Industry compliance standards

• IEC 60502 (Power Cables with Extruded Insulation and Accessories)
• UL 1581 (Reference Standard for Electrical Wires, Cables, and Flexible Cords)
• RoHS (2011/65/EU – Restricted Substances in Cables)
• EN 50363 (Insulating, Sheathing Materials for Cables)

Typical usage ratio

• Formulated at 28–35% of total compound weight; adjusted with flame retardants, fillers, and stabilizers according to voltage class, flexibility demands, and flame performance

Downstream process integration

• Fed to compounding extruders with fire-retardant minerals and stabilizer packages; compound is pelletized and later extruded over copper or aluminum conductors, then crosslinked or air-cooled to finalize insulation layer

Final product types

• Low- and medium-voltage power cables
• Signal and control wire insulation
• Flexible appliance cords for household devices
• Cable jacketing for solar and telecommunications infrastructure

4. Footwear Soling and Midsoles Manufacturing

Footwear manufacturers favor this EVA grade for lightweight, cushioned soling and midsole systems in sports, leisure, and safety shoes. The polymer’s foamability, elastic memory, and tactile properties allow for advanced injection and compression molding. Controlled cell structure and resilience contribute to end-user comfort and product longevity in competitive retail environments.

Industry compliance standards

• ISO 20871:2018 (Footwear – Test Methods for Outsoles)
• REACH Regulation (EC 1907/2006) for restricted substances
• GB/T 15107 (China Sports Shoes Quality Standard)
• CPSIA (Consumer Product Safety Improvement Act – US footwear imports)

Typical usage ratio

• Used at 60–85% of total foam blend weight; exact proportion depends on desired foam density, hardness, and addition of fillers or blowing agents

Downstream process integration

• Pre-blended with crosslinking agents, color dispersions, and blowing agents before injection into high-pressure molds or EVA sheet extrusion; foam structure formed during curing phase at 170–200°C

Final product types

• Shoe soling units for athletic and casual shoes
• Midsoles in running and performance footwear
• Beach sandal bases (flip-flops)
• Work and safety shoe inserts

5. Injection and Blow-Molded Toys

Producers of children’s and novelty toys employ E120A EVA for its certified non-toxicity, color retention, and flexibility, enabling complex mold shapes and soft-touch finishes. Strict QC protocols in compounding and molding processes are required to maintain compliance with global toy safety laws and minimize impurities, supporting high-volume automated production lines.

Industry compliance standards

• EN 71-3 (European Standard for Safety of Toys – migration of certain elements)
• ASTM F963 (US Toy Safety Standard)
• ISO 8124 (Safety of Toys – International Standard)
• China’s GB 6675 (Toy Safety Technical Code)

Typical usage ratio

• Utilized at 70–95% of polymer content for direct-molded components; ratio may adjust down for co-molded or filled toy parts

Downstream process integration

• Predosed into injection or blow-molding machines with color masterbatches and process aids; melted and injected into precision steel molds, followed by demolding and vibration trimming

Final product types

• Soft play toys and blocks
• Inflatable toy shells
• Cushioned teether rings
• Flexible bath toys

6. Film Casting for Agricultural Greenhouse Coverings

Specialist film processors select E120A EVA for agricultural greenhouse film production where it improves film elasticity, light diffusion, and durability against outdoor weathering. The resin's high clarity and mechanical adaptability support thick, multi-layer film extrusion on wide-width lines. UV and anti-fog additive compatibility ensures season-long crop protection in intensive horticulture systems.

Industry compliance standards

• EN 13206:2021 (Plastic Films for Agriculture – Greenhouse Coverings)
• REACH Regulation (for used additives and stabilizers)
• Global GAP (Good Agricultural Practices – for contact materials validation)
• OECD Guidelines for Testing of Chemicals (migration and photodegradation)

Typical usage ratio

• Incorporated at 12–22% by weight in film blends; proportion determined by required tensile strength, greenhouse lifespan (seasonal or multi-year), and type of crops grown

Downstream process integration

• Dry-blended with LLDPE/LDPE and additives; pellet mix fed into multilayer blown-film extruders with automated width and thickness control; inline corona or anti-fog surface treatment

Final product types

• Greenhouse cover films (single- or multi-season)
• Tunnel and row crop covering films
• Drip irrigation lining sheets
• Anti-fog horticultural film rolls