Applications of Hanwha TotalEnergies 2040 EVA in Industrial Manufacturing

Hanwha TotalEnergies 2040 Ethylene Vinyl Acetate (EVA) copolymer is engineered for demanding industrial applications where impact resistance, process flexibility, and controlled melt flow are essential. This material is widely adopted in sectors that require tailored physical properties and high consistency in batch production. Below are key proven applications demonstrating integration in downstream manufacturing processes.

1. Photovoltaic Encapsulant Film Production

Hanwha TotalEnergies 2040 EVA is a preferred resin for encapsulant films in photovoltaic (PV) modules, owing to its excellent transparency, appropriate melt flow rate, and balance of elasticity. Manufacturers rely on its specific vinyl acetate content and crosslinking behavior to secure solar cells within modules, maintaining stability under prolonged UV exposure and heat cycling. Formulators select this grade because it delivers high gel content after lamination, controlling shrinkage and minimizing interface delamination, which is critical for module warranty performance over 25 years.

Industry compliance standards

• IEC 61215 and IEC 61730 for crystalline silicon PV modules
• UL 1703 Safety Standard
• RoHS Directive (EU) 2011/65/EU for hazardous substances
• REACH Regulation (EC) No 1907/2006

Typical usage ratio

• Encapsulant films are composed of 95-99% EVA by weight, with 1-5% additives, based on required crosslinking and optical clarity

Downstream process integration

• Resin processing by extrusion into sheets, followed by addition of crosslinking agents and antioxidants
• Sheets laminated directly over photovoltaic cells during panel assembly
• Curing under vacuum lamination at 140-150°C to initiate crosslinking

Final product types

• Solar module encapsulant films
• Double-glass and standard PV panels
• BIPV glass modules

2. Hot Melt Adhesives for Packaging and Bookbinding

Producers of packaging and bookbinding hot melt adhesives employ this EVA grade for its consistent melt viscosity and good adhesion to a range of substrates. The specific 18-20% vinyl acetate content in 2040 EVA allows for softening at workable temperatures while maintaining cohesive strength in ambient and refrigerated conditions. The resin forms the main polymer matrix in pressure-sensitive and fast-setting adhesives required in automated packaging lines and high-speed binding machines.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for food packaging)
• EuPIA GMP for food contact materials
• ASTM D4498 for hot melt adhesive characterization
• ISO 9001:2015 Quality Management Systems

Typical usage ratio

• Core formulation contains 25-55% EVA copolymer by weight
• Proportion adjusts based on tackifier and wax content for desired open time and bond strength

Downstream process integration

• Blending with tackifiers, waxes, stabilizers in melt tanks
• Granulation or block formation for supply to packagers
• Application by hot-melt gun or automated line at 150-180°C

Final product types

• Carton and case sealants
• Book spine and side glues
• Labels and specialty laminations

3. Wire and Cable Sheathing Compounds

Wire and cable insulation manufacturers utilize this EVA resin to produce flame-retardant and highly flexible compound sheathing. The formulation capitalizes on the resin’s melt strength and compatibility with inorganic fillers and flame retardants, such as aluminium trihydrate (ATH). This balance enables the creation of compounds that comply with demanding electrical and fire performance standards required in building wire, appliance cords, and automotive harnesses, where insulation must resist cracking during installation and use.

Industry compliance standards

• IEC 60227/IEC 60502 for wire & cable insulation
• UL 1581 for electrical cable flame test
• EN 50363-1 EVA insulated thermoplastic sheaths
• RoHS Directive (EU) 2011/65/EU

Typical usage ratio

• Compound formulas use 30-50% EVA, with up to 60% flame retardant and process aids as required
• Ratio varies depending on cable flexibility, halogen-free requirements, and target mechanical strength

Downstream process integration

• Melt blending with flame retardant and synergists in internal mixers or twin-screw extruders
• Direct extrusion onto copper or aluminum conductor core
• Post-extrusion cooling and coiling for further assembly

Final product types

• Low-voltage building wire insulation
• Appliance power cords
• Signal and telecommunications cables

4. Foam Slippers and Sport Shoe Soles

Footwear manufacturers adopt this specific-grade EVA for injection or compression-molded foam applications where rebound, shock absorption, and process control are crucial. The resin’s controlled vinyl acetate content regulates cell size and density during foaming, supporting lightweight soles with high elasticity. Producers optimize formulation according to intended durometer and resilience, as well as colorability for sports and leisure shoe manufacturing lines running at high throughput rates.

Industry compliance standards

• ISO 20345 and ISO 20347 for occupational footwear
• EN 71-3 for migration of certain elements (children’s footwear)
• REACH Regulation (EC) No 1907/2006 for chemicals in finished goods
• SATRA TM144 for slip resistance of footwear

Typical usage ratio

• Shoe sole formulations typically use 75-95% EVA, with the balance including crosslinking agents, foaming agents, pigments, and stabilizers
• Foam density and rebound tailored by adjusting blowing agent and crosslinker levels

Downstream process integration

• Batch mixing with additives, followed by pelletizing for mold charging
• Foam creation by molding under pressure and heat at 160-180°C
• Demolding, trimming, and surface treatment for final assembly

Final product types

• Foam slippers, sandals, and flip-flops
• Midsole and outsole units for sports shoes
• Children’s and leisure foam footwear

5. Flexible Film and Sheet for Industrial Packaging

In industrial packaging, film converters employ this EVA grade for blown and cast film lines to produce tough, puncture-resistant, and low-temperature flexible packaging materials. The control over vinyl acetate content and melt index permits direct conversion into films with enhanced sealability, clarity, and impact resistance. Processors use it in blends to manufacture specialized bags, protective wrap, and liners for industries demanding durability at both sub-zero and elevated temperatures.

Industry compliance standards

• FDA 21 CFR 177.1350 (ethylene-vinyl acetate copolymers for food contact packaging)
• EU Regulation No 10/2011 for plastic materials intended to come into contact with food
• ASTM D882 for tensile properties of thin plastic sheeting
• ISO 9001:2015 for quality consistency in film production

Typical usage ratio

• Film blends consist of 5-40% EVA mixed with linear low density polyethylene (LLDPE) and other resins
• Ratio is tuned based on required seal strength, flexibility, and cold temperature performance

Downstream process integration

• Compounding in single or multi-layer blown film extruders
• Co-extrusion for multilayer barrier or sealant films
• In-line slit-and-wind for finished roll goods

Final product types

• Industrial stretch wrap and shrink film
• Heavy-duty liners and transportation bags
• Flexible covers for agricultural and bulk goods protection