Applications of Hanwha TotalEnergies 1319 EVA in Industrial Manufacturing

Hanwha TotalEnergies 1319 EVA resin provides critical formulation, processing, and end-use advantages across several industrial and consumer production sectors. Below, we detail application scenarios with specific technical, regulatory, and manufacturing considerations for downstream industries.

1. Photovoltaic Encapsulant Films

This material remains one of the preferred resins for solar module encapsulation film. Manufacturers value its specified vinyl acetate content and melt index, which contribute to reliable crosslinking rates and long-term adhesion to glass and backsheets. The resin integrates during extrusion or calendaring of films, is compounded with crosslinking agents and stabilizers, and then laminated in multi-layer assemblies. Key performance targets include high light transmittance, UV stability, and weathering resistance over several service years in diverse environments.

Industry compliance standards

• IEC 61215: Requirements for photovoltaic modules
• UL 1703: Safety requirements for flat-plate photovoltaic modules
• TÜV Rheinland 2 PfG 1169/08.2007: Encapsulant materials certification
• RoHS Directive 2011/65/EU: Hazardous substance restrictions

Typical usage ratio

• 50–95 wt% of the film formulation
• Adjusted according to targeted crosslink density and film mechanical requirements
• Compatibilizer and additive package typically accounts for 3–10%

Downstream process integration

• Direct mixing and melting in extrusion-kneading stage
• Blending with curing agents and antioxidants prior to film casting
• Lamination between solar glass and cell layer during module assembly

Final product types

• Photovoltaic cell encapsulant films
• Double-glass PV modules
• Flexible solar panels
• Backsheet-laminated PV panels

2. Hot Melt Adhesives

This resin sees use as a primary polymer base in pressure-sensitive and heat-activated hot melt adhesives produced through industrial blending, compounding, and granulation. Manufacturers leverage its vinyl acetate level and precise melt viscosity for tuned open time, setting speed, and adhesion to polar/non-polar substrates. It supports consistent bond strength in automated packaging, woodworking, electronics assembly, and hygiene disposables.

Industry compliance standards

• FDA CFR 21 175.105: Adhesives for food packaging
• REACH (EC) No 1907/2006: Chemical safety and registration requirements
• Ecolabel standards (EU Ecolabel, Nordic Swan): For hygiene applications
• ISO 9001:2015: Quality management in adhesive manufacturing

Typical usage ratio

• 20–65% in total adhesive mass
• Varies with tackifier/resin system, filler, and target viscosity
• Adjusted for desired flexibility and working temperature range

Downstream process integration

• Batch blending with tackifiers, waxes, and stabilizers in reactor mixers
• Extrusion or pelletizing lines for finished hot melt adhesive forms
• Applied using automated slot-die or spray applicators on packaging/converting lines

Final product types

• Packaging case and carton sealing adhesives
• Wood bonding glues
• Automotive interior hot melts
• Disposable hygiene product adhesive strips

3. Wire and Cable Insulation Compounds

The resin is widely used as a key polymer in low-voltage power cable and communication cable sheathing. Compounders optimize the dosage for flexibility, dielectric strength, and stress-crack resistance, blending it with other polyolefins, flame retardants, and UV stabilizers. The compounded mixture undergoes extrusion, crosslinking (where applicable), and surface treatment processes. Regulatory compliance and process control are prioritized for cable insulation performance in critical power and signal transmission networks.

Industry compliance standards

• UL 1581: Reference standard for electrical wires
• IEC 60502: Power cable specifications
• RoHS Directive 2011/65/EU: Substance restrictions
• EN 50363: Insulating and sheathing compound requirements

Typical usage ratio

• 15–45% by weight in polyolefin cable compound systems
• Optimized based on desired insulation hardness and weatherability
• Higher loadings for flexible, low-temperature, or halogen-free cable applications

Downstream process integration

• Continuous mixing in twin-screw extruders
• Blending with plasticizers, antioxidants, and flame retardants before extrusion onto conductor core
• Post-extrusion crosslinking where flame and chemical resistance are required

Final product types

• Insulation layers for power and control cables
• Data and signal cable sheaths
• Building wire insulation
• Automotive coaxial cable jackets

4. Footwear Molded Components

This resin supports the flexible fit, resilience, and surface finish required in sports and casual shoe midsoles, outsoles, and molded parts. Compounders employ it as a base polymer, blending with foaming agents and color masterbatches. Downstream manufacturers rely on precise formulation to balance density, cushioning, and slip resistance, using advanced injection and compression molding systems for consistent part geometry. Regulatory adherence and traceability are tracked throughout production.

Industry compliance standards

• EN ISO 20344:2011: Footwear testing standards
• REACH SVHC List (latest): Substance use in consumer goods
• GB/T 15107-2013: Chinese standard for footwear material quality
• ISO 9001:2015: Quality assurance in molded shoe component production

Typical usage ratio

• 30–80% of total sole compound
• Ratio altered for target flexibility and weight reduction
• Blended with fillers, pigments, and process aids as needed

Downstream process integration

• Granulation and melt blending with additives in high-shear mixers
• Injection molding of midsole, outsole, and inlay sheets
• Compression molding with mold temperature and pressure control for foam structure

Final product types

• Sport and casual shoe midsoles
• EVA-based outsoles
• Custom-molded orthopedic insoles
• Shoe cushioning sheets and layers

5. Flexible Packaging Films

Film converters employ this grade during blown or cast film co-extrusion for flexible packaging used in food, industrial, and medical markets. The material imparts sealing capability, low-temperature flexibility, and clarity. Usage ratios depend on required mechanical performance, transparency, and heat-seal strength. Manufacturers maintain process parameter consistency to minimize gel formation and provide uniform gauge profile in multilayer constructions.

Industry compliance standards

• FDA 21 CFR 177.1350: Ethylene-vinyl acetate copolymers for food contact
• EU Regulation (EU) No 10/2011: Plastics in food contact materials
• ISO 22000: Food safety management in packaging production
• ASTM D882: Film tensile properties test methods

Typical usage ratio

• 10–35% in multilayer co-extruded films
• Higher loadings for enhanced sealability or softness in medical packaging
• Adjusted based on layer function and thickness requirements

Downstream process integration

• Feedstock to blown/cast film extruders with controlled temperature zones
• Blending with LDPE, metallocene PE, and additives for sealing and optics
• Sequential lamination or in-line corona treatment for converting

Final product types

• Food pouch and wrapping films
• Sterile medical device packaging
• Retail shrink films
• Industrial moisture-barrier bags

6. Foam Sheet Production

Industrial foamers utilize the resin as the primary matrix polymer for closed-cell and open-cell foam sheets. It blends with blowing agents, nucleators, and stabilizers to impart fine cell distribution and compressive resilience. Manufacturers leverage process settings—such as extrusion barrel pressure, cooling rates, and chemical foaming agent selection—to tune sheet softness and durability for custom applications. Real-time QC ensures uniformity and compliance with downstream safety requirements.

Industry compliance standards

• EN 14041: Resilient, textile and laminate floor coverings
• ASTM D3575: Standard test methods for flexible cellular materials
• REACH Regulation (EC) No 1907/2006: Substance restriction
• ISO 9001:2015: Quality management for foam sheet production

Typical usage ratio

• 60–100% of foam matrix
• Blended with plasticizers and fillers at 0–30% based on density target
• Varied for sheet thickness and compressive strength requirements

Downstream process integration

• Compounding and pelletizing before physical or chemical foaming stage
• Sheet extrusion with in-line foaming
• Secondary shaping, embossing, or cutting for finished sheet dimensions

Final product types

• Flooring underlay foam sheets
• Yoga mats and sports mats
• Packaging cushioning foams
• Sound insulation panels