Applications of Hanwha TotalEnergies 1828 EVA in Industrial Manufacturing

Hanwha TotalEnergies 1828 EVA is an ethylene-vinyl acetate copolymer with specialized properties suitable for advanced application segments in polymer processing, specialty packaging, photovoltaic encapsulation, hot melt adhesives, and wire & cable compounding. Its unique balance of flexibility, clarity, and adhesion performance aligns with stringent industry expectations across critical manufacturing sectors. Below, we provide detailed guidance on real-world downstream applications, compliance frameworks, formulation strategies, and downstream integration methods to support customer process design and product innovation.

1. Photovoltaic Module Encapsulation

Photovoltaic manufacturers rely on EVA 1828 in solar panel encapsulation due to its excellent transparency and crosslinking potential, which ensure stable light transmission and long-term durability in outdoor exposure. The material is melted and laminated directly onto solar cells to safeguard them from environmental stresses while allowing maximal power output. The vinyl acetate content facilitates crosslinking under controlled lamination conditions, creating a robust, weather-resistant interface.

Industry compliance standards

• IEC 61215 (Crystalline Silicon Terrestrial PV Modules – Design Qualification and Type Approval)
• IEC 61730 (Photovoltaic Module Safety Qualification)
• UL 1703 (Standard for Safety: Flat-Plate Photovoltaic Modules and Panels)
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)

Typical usage ratio

• Typically 450–600 g/m² per module (as-cast film), adjusted according to desired crosslink density and cell size

Downstream process integration

• Customers process EVA resin into sheets via extrusion and cast film lines; film is laminated with photovoltaic cells in vacuum lamination ovens at 140–155 °C for 10–20 minutes to achieve full crosslinking and encapsulation

Final product types

• PERC crystalline silicon solar modules
• Thin-film PV modules
• Bifacial photovoltaic panels
• Building-integrated PV components

2. Industrial Hot Melt Adhesive Formulation

EVA 1828 provides foundational tack, flexibility, and adhesion in hot melt adhesives used for industrial packaging, bookbinding, wood bonding, and hygiene product assembly. Its controlled melt index and composition enable reliable formulation for precise bond strength, open time, and thermal resistance in high-speed assembly lines. Chemical producers often blend it with compatible tackifiers and waxes, tuning viscosity and performance for specific end-use requirements.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for food packaging indirect contact)
• ASTM D3236 (Standard Test Method for Apparent Viscosity of Hot Melt Adhesives)
• ISO 9001:2015 (Quality Management Systems for adhesive production)
• REACH Regulation (EC) No 1907/2006

Typical usage ratio

• 25–50% by total adhesive mass, varied based on adhesive tack and setting speed required for substrate combinations; lower ratios used for rigid substrates, higher for flexible applications

Downstream process integration

• Hot melt plants mix EVA granules with resin tackifiers and microcrystalline waxes in jacketed mixers at 130–180 °C; resulting blend is pelletized or filled into sticks and blocks for industrial application using glue applicators

Final product types

• Hot melt glue sticks
• Bookbinding adhesives
• Carton sealing adhesives for automated packaging lines
• Nonwoven hygiene product assembly glues

3. Flexible Packaging Films

Flexible film converters value EVA 1828 for its sealability, clarity, and impact resistance, supporting the production of high-performance multilayer films for food, pharmaceutical, and industrial packaging. This grade enhances seal strength at low temperatures and improves puncture resistance without sacrificing optical qualities, crucial for attractive and protective packaging. Co-extrusion with polyolefins customizes film functionality for each packaging role.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers for food contact films)
• EU Regulation (EU) No 10/2011 (Plastics intended to come into contact with food)
• ISO 22000 (Food Safety Management Systems where packaging is in direct contact)
• GMP Regulation (EC) No 2023/2006

Typical usage ratio

• 10–20% in multilayer films; ratio adapted to required seal strength, film softness, and transparency in the final structure

Downstream process integration

• Integrated in blown or cast film extrusion as one or more layers within co-extruded film structures; pellet feed mixed with LDPE or LLDPE to achieve desired package sealing and optical properties

Final product types

• Frozen food packaging films
• Vacuum pouch films
• IV solution overwraps
• Consumer goods wrapping films with low-temperature sealing capability

4. Wire and Cable Insulation Compounds

Producers of low-voltage wire and cable insulation compounds rely on EVA 1828 for its dielectric properties, flexibility, and resistance to environmental stress cracking. When incorporated into insulation and sheathing compounds, it supports long-term performance in flexible power cords and data cables. Its vinyl acetate content improves blend compatibility with flame retardants and enhances overall mechanical performance after extrusion and curing.

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 (Restriction of Hazardous Substances in electrical applications)
• EN 50363-1 (Insulating compounds based on EVA for cables)

Typical usage ratio

• 35–55% in wire and cable compounds, depending on required flexibility, flame retardancy, and mechanical demands; higher ratios applied for specialty flexible cords

Downstream process integration

• EVA granules blend with flame retardants, antioxidants, and colorants in banbury mixers or twin-screw extruders; the compound is then extruded over copper or aluminum wires and may be crosslinked using irradiation or peroxide curing

Final product types

• Flexible power cords (H05VV-F, H03VV-F, etc.)
• Communication/data cables
• Instrument and control cables
• Low-smoke halogen-free insulation sheathing for building wire

5. Foamed Shoe Sole and Midsole Manufacturing

Footwear compounders select EVA 1828 as the key resin for performance midsole and outsole foaming thanks to its balance of compressive strength, tear resistance, and cushioning. The resin’s processability allows precise cell size and density control during injection or compression molding, enabling both lightweight feel and structural integrity for athletic, casual, and safety footwear. Modulators such as crosslinking agents and blowing agents are added to tune foam hardness and rebound.

Industry compliance standards

• ISO 9001:2015 (Quality Management for footwear material production)
• REACH Regulation (EC) No 1907/2006
• GB/T 3903.3 (Chinese national standards for physical properties of shoe soles)
• EN ISO 20344 (Personal Protective Equipment – Test methods for footwear)

Typical usage ratio

• 55–75% by total foam compound, adjusted for target density and cushioning; higher EVA ratios deliver softer, lighter soles, while lower ratios yield firmer, heavier grades

Downstream process integration

• Milled with blowing agents, crosslinking chemicals, and pigments; mixture is expansion-molded or injection-molded using pressurized steam or oven heating, achieving desired foam expansion before final shoe sole molding or trimming

Final product types

• Sports shoe midsoles and outsoles
• Beach sandals and flip-flops
• Children’s footwear with lightweight foam soles
• Protective work boot midsoles requiring energy absorption