Applications of Hanwha TotalEnergies 2020 EVA in Industrial Manufacturing

As a manufacturer, we supply Hanwha TotalEnergies 2020 EVA into multiple industrial production streams requiring controlled performance, reliability, and regulatory consistency. The following sections outline major application fields and the technical points for each downstream use.

1. Photovoltaic Encapsulant Films

2020 EVA is widely used by module assemblers for formulating encapsulant films in crystalline silicon solar panels. Its consistent melt flow and clarity maintain electrical insulation and light transmission under lamination. Operators rely on this grade for high gel content and stable cross-linking with organic peroxides during thermal curing. The film maintains strong adhesion to glass, cell, and backsheet, supporting stable module output throughout aging and humidity cycles.

Industry compliance standards

• IEC 61215 for photovoltaic module performance
• UL 1703 and IEC 61730 for safety and construction
• RoHS Directive (EU) 2011/65 compliance
• REACH SVHC absence statement (EU) 1907/2006

Typical usage ratio

• Encapsulant formulation: 65–85% EVA resin, balance crosslinkers, stabilizers, UV absorbers. Ratio adjusted for target gel rate (70–80%) and lamination cycle.

Downstream process integration

• Film extrusion or calendering for pellet-to-sheet conversion
• Mixing with curing agents and batch pigmenting as required, followed by roll compounding
• Lamination under vacuum at 140–155°C for 10–15 min to ensure full cross-linking and adhesion

Final product types

• P-type and N-type crystalline silicon PV modules
• Double-glass solar panels
• Building-integrated photovoltaics (BIPV) laminated sheets
• Specialty UV-transmitting encapsulants for bifacial modules

2. Hot Melt Adhesives for Packaging and Bookbinding

Numerous adhesive converters select 2020 EVA for formulating hot melt adhesives in automated packaging, woodworking, and bookbinding lines. The copolymer’s consistent pressure-sensitive tack and low-temperature flexibility suit carton closing, label application, and spine gluing. Manufacturers blend compatible waxes and tackifiers to target open time, peel strength, and pot-life with clean running in high-speed applicators and extrusion heads.

Industry compliance standards

• FDA 21 CFR 175.105 (US) for indirect food contact adhesives
• EN 923:2005 for adhesive classification
• ISO 9001:2015 Quality Management Systems
• BfR XXI (Germany) adhesives in food packaging

Typical usage ratio

• Base polymer in finished adhesive: 25–45% EVA, with formulation tuned according to target flexibility, viscosity, and bonding substrate.

Downstream process integration

• Compounding via hot melt extrusion mixers, then pelletizing for end-use or direct application in bulk form
• Application through roll coaters, extrusion guns, or solid melt tanks on converting lines
• In-line filtration and rheology adjustment to reduce nozzle clogging and control bond line thickness

Final product types

• Food and beverage carton sealing glues
• Folded box and corrugated packaging adhesives
• Perfect binding book and magazine spines
• Pressure-sensitive tapes and labels for logistics and retail

3. Wire and Cable Compounds

Electrical cable manufacturers employ this grade EVA as a main compound base for low-voltage insulation and jacketing. Its purity and dielectric stability ensure consistent electrical resistance and thermal endurance. Formulators add antioxidant packages, fillers, and pigment dispersions for flame retardancy and color stability. Downstream extrusion requires stable melt flow and good surface smoothness to meet cable processing speeds and mechanical pull tests.

Industry compliance standards

• IEC 60502-1 for power cable construction and testing
• UL 62, UL 1581 for flexible cords and appliance wiring
• RoHS (2011/65/EU) for heavy metal-free formulations
• EN 50363-5 for EVA thermoplastic insulation compounds

Typical usage ratio

• Base resin 35–65%, dependent on flame retardant, carbon black, and compatibilizer loading. Higher EVA for flexibility, lower for rigid sheathing.

Downstream process integration

• Direct extrusion into insulation and sheathing lines after compounding with anti-scorch packs and colorants
• Injection blending for multi-layer coatings and high-speed cable line production
• Continuous in-line melt filtration for surface defect reduction

Final product types

• Low voltage installation wires (up to 1 kV)
• Flexible cords for appliances and lighting
• Automotive wire harness insulation
• Power distribution and control cable sheathing

4. Foamed Shoe Soles and Sports Footwear

Sports, leisure, and safety shoe manufacturers integrate 2020 EVA in microcellular foam blends for molded outsoles and midsoles. Its balance of elasticity, tear strength, and cell-forming behavior allows fine-tuning of hardness and rebound by adjusting foaming agents, crosslinkers, and fillers. The polymer delivers consistent expansion and density profiles, supporting mass production of footwear components with reliable slip resistance, cushioning, and dimensional stability across long mold cycles.

Industry compliance standards

• ISO 20344/20345 for personal protective equipment footwear
• EN 13632 for sports and leisure footwear testing
• REACH Annex XVII for restricted substances
• Guidance from SATRA and ISO 16187 for physical property assessment

Typical usage ratio

• Base formulation: 65–90% EVA; adjusted by weight for target hardness (Shore C), expansion factor, and abrasion requirements.

Downstream process integration

• Pre-blending with blowing agents and antioxidants, then batch mixing with fillers
• Injection molding or compression molding with temperature-controlled cycle (135–180°C)
• Post-cure cross-linking and trimming before mechanical and flex testing

Final product types

• Golf, running, and casual footwear midsoles
• Work and industrial shoe outsoles
• Slides, sandals, and EVA clogs
• Children’s molded footwear and toy soles

5. Flexible Film and Sheet for Greenhouse and Agricultural Coverings

Producers of agricultural films use this EVA resin to boost tear resistance, transparency, and resistance to environmental stress cracking. Blended with LDPE or LLDPE, it allows clear, soft films for horticulture tunnels and mulching applications. Compounding engineers target mechanical flexibility and UV weatherability by introducing suitable light stabilizers, anti-fog agents, and improving heat-sealing performance during blown film and cast film extrusion.

Industry compliance standards

• EN 13206:2023 for plastic films in agriculture and horticulture
• ISO 9001 process audits for film traceability
• REACH (1907/2006) SVHC compliance for agricultural plastics
• Testing per ASTM D882 and D1709 for film physical properties

Typical usage ratio

• Blending ratio: 10–35% EVA in polyolefin film matrix, adjusted for target tensile modulus, clarity, and thickness (40–250 μm).

Downstream process integration

• Pneumatic or rotary blending with LLDPE, LDPE, and additives before extrusion
• Blown film lines with controlled cooling and winding tension to achieve consistent sizing
• Lamination or surface corona treatment for wettability and printable surface

Final product types

• Greenhouse roof and sidewall films
• Silage wrapping films for forage protection
• Mulching sheeting for soil management
• UV-stabilized nursery and crop covers

6. Masterbatch and Color Concentrate Carriers

Concentrate manufacturers use this material as a carrier resin for pigment, additive, and UV stabilizer masterbatches, especially for use in polar polymers and cross-linkable systems. Its solubility and melt compatibility with a wide variety of colorants allows homogeneous dispersion and reliable let-down in downstream plastics processing. Formulators can balance carrier-to-pigment ratios for color strength, rheology, and filterability as demanded by extruders and injection molders.

Industry compliance standards

• ISO 9001:2015 manufacturing conformity
• EN 12877 (colorants for plastics) for pigment testing
• REACH registration for color additives and dispersions
• FDA 21 CFR 177.1350 for polymer carriers in select food contact articles

Typical usage ratio

• Carrier resin in masterbatch: 30–60% by weight, with balance of colorants, UV stabilizers, and wetting agents, tuned to target coloration and loading rates.

Downstream process integration

• High-shear extrusion mixing with pigments and surfactants, pelletizing for use in injection, blow molding, or film extrusion
• Direct dosing of concentrate during plastics processing for color matching
• In-line and post-compounding quality control for color and dispersal uniformity

Final product types

• Masterbatches for crosslinkable cable, film, and foam compounds
• High-load color concentrates for shoe sole, packaging, and wire applications
• UV, anti-static, and flame-retardant additive masterbatches
• Pre-colored EVA compounds for toys and sporting goods