Applications of LG Chem SEETEC ES26005 EVA in Industrial Manufacturing

LG Chem SEETEC ES26005 EVA integrates into diverse manufacturing routes where its specific properties deliver functional enhancement in targeted downstream sectors. The following application scenarios represent core industrial uses based on this grade’s performance profile and compliance portfolio, with precise reference to technical implementation and regulatory standards.

1. Solar Photovoltaic Encapsulation Films

As a foundational polymer for manufacturing encapsulant layers, SEETEC ES26005 EVA supports high transmission and durability in solar panel modules. Producers select this grade for its consistency in cross-linking behavior and proven aging resistance, which maintain optical clarity and secure cell protection through lamination processes at utility and residential scale.

Industry compliance standards

• IEC 61215 – Crystalline silicon terrestrial PV modules
• UL 1703 – Flat-plate photovoltaic modules and panels
• TÜV Rheinland 2PfG 1162 – Encapsulation materials for PV cells
• RoHS Directive (2011/65/EU)

Typical usage ratio

• 70–80 wt% in the encapsulant layer, adjusted according to target cross-linking ratio, optical requirements, and processing method. Additives such as curing agents and UV stabilizers typically occupy the balance of the formulation.

Downstream process integration

• Compound enters extrusion calendaring or cast film lines. Lamination occurs at 140–160°C under vacuum, where SEETEC ES26005 EVA’s melt viscosity and reactivity enable precise bubble-free formation and strong silicon wafer adhesion. Cross-linking degree is tuned by blend ratio and line speed.

Final product types

• Photovoltaic encapsulant films for crystalline and thin-film solar module assemblies
• Backsheet tie layers in composite solar panels
• Interlayer sheets for bifacial PV modules

2. Hot Melt Adhesives (HMA) for Packaging

SEETEC ES26005 EVA forms the primary polymer backbone for many hot melt adhesives specified in consumer and industrial packaging assembly. Its controlled vinyl acetate content and melt flow characteristics ensure balanced adhesion to paper, board, and plastics, as well as high-speed dispensing without stringing or charring. Users rely on this grade for consistent bond strength and defined setting time, especially where regulatory-certified adhesives are required.

Industry compliance standards

• FDA 21 CFR 175.105 – Adhesives for food packaging
• REACH (EC 1907/2006) chemical safety
• BGVV XXI (Germany) – Materials for food contact
• ISO 9001:2015 – Quality management for adhesive production

Typical usage ratio

• Base polymer component at 40–60 wt% in HMA formulations. Ratio varies by desired open time and substrate. Tackifiers, waxes, and stabilizers round out the recipe based on application conditions and substrate wettability.

Downstream process integration

• Pellets are introduced into twin-screw mixers or continuous melt reactors. EVA melt blends with tackifiers before packaging in pillow or pellet form for melt application at 120–180°C. Quality checks monitor viscosity and bonding performance before shipment.

Final product types

• Hot melt adhesive sticks and pellets for food cartons
• Case and carton sealing adhesives for automated packing lines
• Multi-purpose hot melt glues for bookbinding and labeling in fast-cycle manufacturing

3. Wire and Cable Insulation Compounds

In the wire and cable sector, this EVA grade acts as a core component in primary insulating and sheathing compounds for low- and medium-voltage applications. Processors favor its balance of flexibility, dielectric properties, and thermal stability, supporting smooth extrusion and consistent insulation wall thickness. Standardized testing ensures compliance with flame retardancy and migration limits for safe electrical performance.

Industry compliance standards

• IEC 60502 – Power cables with extruded insulation for rated voltages
• UL 62 – Flexible cords and cables
• RoHS Directive (2011/65/EU)
• CSA C22.2 No. 49 – Flexible cords and cables

Typical usage ratio

• 50–80 wt% as a matrix material, with ranges determined by required flame retardance and flexibility. Filler, antioxidant, and stabilizer content is adjusted according to the end cable standard and installation conditions.

Downstream process integration

• Compound is dry-blended, melt compounded, and pelletized before feeding into extruders. The material coats conductor wires via crosshead or tubing extrusion at 140–200°C. Cross-linking or irradiation steps may follow for higher-performance cables.

Final product types

• Flexible appliance wire insulation
• Low-voltage power and control cable jackets
• Data and telecom cable sheathing

4. Shoe Sole and Footwear Foam Production

Footwear manufacturers employ this EVA grade for blending lightweight, resilient foam compounds used in midsoles and outsoles of athletic and casual shoes. Control over cell structure and rebound characteristics, achieved via formulation with blowing agents and process additives, remains central to large-scale production of consistent, comfortable soles conforming to footwear regulatory and wear resistance requirements.

Industry compliance standards

• EN ISO 20344 – Safety footwear testing methods
• GB/T 15107 – Chinese standard for sport shoes
• REACH (EC 1907/2006)
• ISO 9001:2015 – Footwear manufacturing quality management

Typical usage ratio

• Primary polymer phase at 60–90 wt% in foamable blends. Proportions depend on target density, hardness, and expansion rate. Incorporation of blowing agents, colorants, and cross-linkers is tailored to the product line and end-user requirements.

Downstream process integration

• Beads or pellets are batched with blowing agents and initiators, then fed into high-shear mixers or direct injection molding machines. Cross-linking and expansion occur in-mold at 150–180°C under set pressure, producing final foam blocks for cutting or direct-molded soles.

Final product types

• Injection-molded midsoles for running shoes
• Comfort foam outsoles for lifestyle and safety footwear
• Anti-slip mats and cushioning pads for occupational footwear

5. Film Applications for Agricultural Greenhouse Covers

Producers of agricultural films use this EVA grade to raise low-temperature flexibility and light transmission in multilayer greenhouse covers, ensuring resilience under seasonal UV exposure and mechanical stress. Optimized blending with LDPE and UV additives allows processors to meet stringent agricultural film standards, delivering high-quality covers for global horticulture and food production markets.

Industry compliance standards

• EN 13206 – Plastic film for agricultural applications
• GB/T 24788 – Chinese greenhouse film standard
• REACH (EC 1907/2006) for polymer films
• ISO 9001:2015 – Agricultural film manufacturing

Typical usage ratio

• 15–30 wt% as a functional modifier in co-extruded or mono-extruded greenhouse film recipes. The ratio increases with requirements for low-temperature impact resistance and enhanced optical properties.

Downstream process integration

• EVA resin is dry-blended with LDPE, LLDPE, and UV stabilizers, then fed into multi-layer blown film lines. Downgauging, bubble cooling, and inline surface treatment follow, with thickness and transmission checked to meet horticultural specifications.

Final product types

• Multilayer greenhouse cover films
• Thermal insulation films for crop protection
• Light-diffusing tunnel and mulching films