Applications of Hanwha TotalEnergies E032A EVA in Industrial Manufacturing

Hanwha TotalEnergies E032A EVA copolymer supports downstream industries through its controlled vinyl acetate content, reliable process parameters, and consistent performance. Our advanced polymerization and quality control underpin its industrial acceptance across multiple sectors, enabling engineered solutions for specialized production processes.

1. Photovoltaic Encapsulant Film Manufacturing

Photovoltaic module producers select E032A EVA for encapsulant film formulations due to its chemical purity and low gel content. The resin acts as the primary matrix during the film extrusion process, promoting high light transmittance, static electrical insulation, and durable adhesion to solar glass and cells. Encapsulant sheets maintain critical electrical and weathering properties through advanced crosslinking during the module lamination phase, where controlled melt index and vinyl acetate content ensure bubble-free, optically clear modules meeting stringent service life requirements.

Industry compliance standards

• IEC 61215:2021 (Crystalline PV Module Qualification)
• IEC 61730-2:2023 (Safety Qualification for PV Modules)
• UL 1703 (Flat-Plate PV Modules and Panels, USA)
• TUV Rheinland PQP Certification

Typical usage ratio

• 70–100% by weight in encapsulant film compounds, with adjustments for crosslinking agents and UV stabilizers as per module builder specifications

Downstream process integration

• Granules are melt-blended with additive masterbatches during blown film or cast film extrusion
• Finished sheets undergo crosslinking during lamination with solar cells and float glass at module assembly plants

Final product types

• P-type and N-type crystalline silicon PV modules
• Thin-film photovoltaic solar modules
• Bifacial and high-efficiency solar panels
• Specialized glass-glass modules used in utility installations

2. Hot Melt Adhesives for Packaging and Bookbinding

Hot melt adhesive compounders prefer E032A EVA for its balanced flexibility and adhesion over a broad temperature range. Its melt flow rate and vinyl acetate content enable precise formulation with tackifying resins and waxes. The resin not only modifies open time and setting speed, but also enhances low-temperature flexibility and adhesion to polyolefin, paper, and board substrates. Industrial adhesive lines use these blends for continuous high-speed application, achieving clean cut-off and reliable bonding in carton closing, case sealing, and spine gluing operations.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for Indirect Food Contact, USA)
• REACH SVHC Compliance (European Union)
• EN 923 (Adhesives—Terms and Definitions)
• EN ISO 9001:2015 (Adhesive QC Systems)

Typical usage ratio

• 15–40% by weight depending on required softening point, with adjustments for resin compatibility and open time based on line speed and substrate

Downstream process integration

• Melt-mixed in reactors with tackifiers and waxes, followed by pelletizing or direct packaging as blocks/pillow form
• End users apply pellets in hot melt tanks of automated packaging lines or bookbinding stations

Final product types

• Case and carton sealing adhesives for high-speed FMCG packaging lines
• Perfect binding adhesives for paperback books
• Hot melt labels and pressure-sensitive tapes
• Glue sticks for industrial and consumer use

3. Wire and Cable Compounds

Wire and cable compounders use E032A EVA as a primary or modifier polymer in insulation and jacket compounds for low- and medium-voltage power cables. Its vinyl acetate content imparts superior flexibility, stress crack resistance, and excellent processability for continuous extrusion. Formulators blend it with fire retardants, antioxidants, and pigments to achieve end-use properties. Insulation and sheathing made from these compounds protect copper conductors, withstand repeated flexing, and maintain electrical integrity under outdoor, buried, or automotive conditions.

Industry compliance standards

• IEC 60502 (Power cables with extruded insulation, 1–30 kV)
• UL 83 (Thermoplastic-Insulated Wires and Cables)
• RoHS 2011/65/EU (Restriction of Hazardous Substances Directive)
• CSA C22.2 No. 49 (Power cables, Canada)

Typical usage ratio

• 30–60% by weight in insulation or jacketing compounds, adjusted for targeted mechanical, thermal, and electrical properties and per flame retardant loading

Downstream process integration

• Dry blending with process additives and non-halogenated flame retardants
• Compounding on twin-screw extruders, followed by pelleting and subsequent use in wire extrusion lines
• Direct extrusion as pellet-feed insulation or outer jacket over copper or aluminum conductors

Final product types

• Flexible power cables for industrial automation and robotics
• Automotive wiring harnesses
• Low-smoke zero-halogen (LSZH) building cables
• Sheathing for submersible or outdoor-use electrical cables

4. Footwear Injection Molding

Shoe sole and midsole manufacturers incorporate E032A EVA in thermoplastic and crosslinkable blends to obtain lightweight, shock-absorbent, and resilient components. Injection and compression molding processes utilize precise resin melt properties for foam cell uniformity and density control. The copolymer’s flexibility and tear resistance support stringent wear-life requirements in sports, leisure, and work footwear. Downstream integrators blend specialty additives, colorants, and blowing agents, optimizing cycle times and achieving consistent expansion, hardness, and tactile properties.

Industry compliance standards

• ISO 20871:2001 (Footwear—Test Methods for Soles)
• REACH Annex XVII (Substance Restrictions for Footwear Components)
• EN 20345 (Safety Footwear, CE Mark Testing)
• ISO 9001:2015 (Footwear Manufacturing Quality Systems)

Typical usage ratio

• 50–95% in midsole and outsole formulations, with precise level depending on desired foam density, hardness, and use of secondary modifiers

Downstream process integration

• Premixed with blowing agents, rubber modifiers, crosslinkers, and pigments
• Material is fed to injection or foam molding equipment, followed by vulcanization or post-molding crosslinking in some cases

Final product types

• Lightweight EVA foam soles for athletic and running shoes
• Work boot midsoles with shock absorption
• Casual shoe outsoles and sandal bases
• Footbeds and orthotic inserts

5. Film for Agricultural Greenhouse and Tunnel Coverings

Greenhouse film producers utilize E032A EVA as a co-extruded or blended component with low-density polyethylene to improve film clarity, toughness, and low-temperature flexibility. Its use reduces film brittleness under cold conditions and enhances the light transmittance necessary for optimal plant growth. Proper film compounding also suppresses dust attraction and static charge accumulation. Finished films maintain high mechanical integrity for multiple seasons under continuous UV exposure, and accept functional additives for thermal, anti-drip, or IR-reflective properties.

Industry compliance standards

• UNI EN 13206:2016 (Plastic Films for Mulching and Greenhouse Covering)
• ISO 4892-2:2013 (UV Exposure Testing for Plastics)
• REACH Regulation (EC) No 1907/2006
• EN ISO 14001:2015 (Environmental Management for Film Production)

Typical usage ratio

• 10–25% in multilayer agricultural polyethylene films, adjusted according to thickness target, flexibility, and required functional additive loadings

Downstream process integration

• Resin is fed with LDPE and functional masterbatches to blown-film or cast-film extruders
• Co-extrusion used for multilayer films or core layers, with in-line surface treatment and winding

Final product types

• Single and multilayer greenhouse covering films
• Low-tunnel and high-tunnel agricultural films
• Mulching foils with improved tear resistance
• Thermal-diffusing plastic films