Applications of Hanwha TotalEnergies 1320 EVA in Industrial Manufacturing

Hanwha TotalEnergies 1320 Ethylene Vinyl Acetate (EVA) is engineered for direct industrial processing, meeting the technical demands of multiple advanced manufacturing sectors. The following sections present real downstream application areas where this grade enables reliable production of specialty goods through specific formulation, compliance, and integrated manufacturing processes.

1. Solar Photovoltaic Encapsulant Film Manufacturing

This EVA resin supports formulation of encapsulant films for photovoltaic (PV) modules. It ensures consistent crosslinking, high light transmission, and electrical insulation required in crystalline silicon solar cells. Manufacturers can blend it with curing agents and additives to achieve optimal mechanical strength and weatherability during lamination and module assembly processes.

Industry compliance standards

• IEC 61215 for crystalline silicon terrestrial PV modules
• IEC 61730 for PV module safety qualification
• UL 1703 for flat-plate PV modules and panels
• RoHS Directive (2011/65/EU) compliance

Typical usage ratio

• Encapsulant formulations typically use 80–92% EVA base, with 2–5% curing agent and 2–4% stabilizers; formulation depends on crosslinking speed and film gauge

Downstream process integration

• Feeds directly to blown or cast film extrusion lines
• Thermal lamination with glass and backsheet materials in module fabrication
• Integrated crosslinking step at 140–160°C in module press
• Continuous inline QC for gel content and light transmittance

Final product types

• Solar PV encapsulant films
• Front and rear encapsulation sheets
• Backsheet-tandem encapsulated modules
• High-efficiency mono and polycrystalline silicon solar panels

2. Hot Melt Adhesive Production for Packaging and Bookbinding

This grade is widely used in industrial hot melt adhesive (HMA) formulations for applications demanding good tack, flexibility, and adhesion on a variety of substrates. Producers melt-blend the resin with tackifiers, waxes, and stabilizers to engineer adhesives for automated packaging lines, woodworking, and high-speed bookbinding.

Industry compliance standards

• FDA 21 CFR 175.105 for adhesives in indirect food contact
• REACH Regulation (EC) No 1907/2006 substance registration
• ASTM D3236 melt viscosity standard
• TAPPI T 813 for adhesion of adhesives to paperboard

Typical usage ratio

• HMA compounds contain 30–50% EVA; ratio tailored for viscosity, open time, and peel strength, dependent on end-use (packaging, wood, book spines, etc.)

Downstream process integration

• Combined with tackifiers and wax in heated mixer-extruders
• Melt-compounded then pelletized or formed into blocks/slugs for end-user automation
• Straightforward adjustment through compounding for various melt-flow requirements
• Direct transfer to precision melt-tank feeders on large volume lines

Final product types

• Hot melt adhesive pellets and blocks
• Pressure-sensitive adhesives for tapes and labels
• Bookbinding glues for automated binderies
• Industrial case, carton, and tray packaging adhesives

3. Cable and Wire Insulation Compounds

Processing houses select this material for use in wire and cable jacketing and insulation due to its balance of flexibility, dielectric strength, and compatibility with flame-retardant systems. Blending occurs with mineral fillers and fire retardants to meet demanding standards for electrical infrastructure, automotive and appliances.

Industry compliance standards

• UL 1581 for electrical wire, cable, and flexible cords
• IEC 60227 for polyvinyl chloride insulated cables
• RoHS and EN 50575 (CPR) for cable fire safety
• VDE standards for European wire manufacturers

Typical usage ratio

• EVA content typically at 25–45% in jacket/insulation formulations; higher ratios for increased flexibility, with remaining composition filled by flame retardants and stabilizers

Downstream process integration

• Compounding on twin-screw extruders with masterbatch additives
• Direct application through continuous cable extrusion lines
• In-line crosslinking and irradiation for high-performance cables
• Batch QC for tensile strength and dielectric breakdown voltage

Final product types

• Low-voltage electrical cable insulation
• Flexible power and control cable jackets
• Data and telecommunication cable cladding
• Automotive wire harness protection

4. Footwear Injection and Compression Molding

This EVA grade enables high-resilience foams and midsoles for industrial and athletic footwear. Manufacturers blend it with blowing agents, coloring pigments, and crosslinking additives for direct foaming and molding. It supports repeated expansion cycles without significant loss of elasticity, crucial for large-scale footwear operations.

Industry compliance standards

• ISO 20345 for safety footwear requirements
• REACH Regulation (EC) No 1907/2006 safety data compliance
• EN ISO 20243 for occupational footwear performance
• CPSIA for lead and phthalate limits in consumer products

Typical usage ratio

• Base resin makes up 60–80% of the foam-mold formulation; ratio altered to control hardness, resilience, and cell structure in sole and insole lines

Downstream process integration

• Melt-mixing with chemical foaming and crosslinking agents in batch or continuous reactors
• Sheet extrusion, followed by compression molding or injection molding into component forms
• Automated multi-cavity mold systems for high-throughput production
• Ongoing QC for rebound, abrasion, and density performance

Final product types

• Molded midsoles for running and safety shoes
• Direct-injected sandal and slipper soles
• Compression-molded insoles and footbeds
• Floor mat components for industrial environments

5. Film Extrusion for Agriculture and Horticulture

This EVA resin is compatible with flexible, transparent agricultural films. Producers leverage its clarity and weather resistance to manufacture greenhouse covers, mulch, and tunnel films. Customization with UV stabilizers, anti-block agents, and IR absorbers ensures crops grow efficiently and protected under variable outdoor conditions.

Industry compliance standards

• EN 13206 for plastic films in agriculture and horticulture
• ISO 4892-2 for weathering resistance of plastics
• REACH Regulation for material composition and additives
• National standards for agricultural film in major production regions (e.g. ASTM D882 for tensile properties)

Typical usage ratio

• Film formulations use 15–40% EVA blended with LDPE/LLDPE; ratio optimized for flexibility, puncture resistance, and light transmittance in multilayer films

Downstream process integration

• Blown film co-extrusion with PE, UV, and IR masterbatch additives
• Gauge control via automated thickness sensing
• Integrated slit and roll conversion for direct shipping
• Periodic quality checks for transmission curve and mechanical strength

Final product types

• Greenhouse cover films
• Mulch and tunnel films
• Thermal insulation agricultural sheeting
• Crop protection and silage films