Applications of LG Chem SEETEC ES18002 EVA in Industrial Manufacturing

LG Chem SEETEC ES18002 EVA is a high-performance ethylene-vinyl acetate copolymer designed to meet the demanding requirements of advanced manufacturing sectors. Leveraging its consistent quality and processing stability, producers integrate this material in specialized applications across multiple downstream industries. Below, we detail real-world scenarios for this grade, each illustrated with practical standards, workable dosing protocols, processing stages, and end product outputs.

1. Solar Photovoltaic Encapsulant Films

The unique balance of transparency, adhesion, and elasticity in ES18002 supports encapsulant film production for solar photovoltaic (PV) modules. Film manufacturers value its high process stability and crosslinking response, allowing for precision in lamination and sustained module performance throughout extended service life. This use focuses on securing solar cells from moisture and mechanical shocks while preserving optical properties.

Industry compliance standards

• IEC 61215: Terrestrial photovoltaic modules design qualification and approval
• UL 1703 / UL 61730: Safety standards for photovoltaic modules
• TÜV SÜD / IEC 61730: Photovoltaic panel safety qualification
• RoHS, REACH regulations for hazardous substances

Typical usage ratio

• 95–100% of encapsulant layer weight, with co-additives (e.g., crosslinkers) at 0.5–5% based on curing speed and weather resistance needs

Downstream process integration

• Extrusion casting into films, followed by calendaring and corona treatment; integration as core encapsulation sheets during glass/EVA/cell/EVA/backsheet lamination cycles under vacuum and thermal pressing (typically 140–155°C, 15–25 min)

Final product types

• PV cell encapsulant sheets
• Double-glass solar module films
• Backsheet-laminated solar panels
• Transparent encapsulant layers for bifacial modules

2. Hot Melt Adhesive (HMA) Formulations

ES18002 forms the basis of hot melt adhesive manufacturing for industrial and packaging sectors, enabling flexibility and enhanced bonding strength even at low temperatures. Adhesive formulators depend on its vinyl acetate content and melt viscosity for stable blending with tackifiers and waxes, delivering reliable performance across automated dispensing lines for packaging and assembly.

Industry compliance standards

• FDA 21 CFR 175.105: Indirect food contact adhesives
• REACH Annex XVII compliance for chemical safety
• EN 923: Adhesives—Terminology for adhesives and related terms
• China GB 9685: Standards for food contact adhesives (where applicable by region)

Typical usage ratio

• 20–40% of total adhesive mass for case and carton sealing; ratio adjusted based on required flexibility, tack time, and open time

Downstream process integration

• Melting in jacketed tanks with continuous mixing; co-blending with resin tackifiers, waxes, and stabilizers, then granulating or extruding into pellets or blocks for automated melting and dispensing equipment

Final product types

• Hot melt adhesive pellets
• Pressure-sensitive adhesives (PSA) for labels/tapes
• Case and carton sealing adhesives
• Bookbinding spines and product assembly glues

3. Foamed Footwear Soles and Sheets

Footwear and sports equipment factories employ ES18002 as a principal resin for EVA foam, offering a combination of resilience and lightweight cushioning. Its consistent molecular structure supports predictable foaming and crosslinking behaviors, essential in batch and continuous molding lines where mechanical uniformity and softness are critical for end-use comfort.

Industry compliance standards

• EN ISO 20344: Footwear test methods for safety, protection, and occupational use
• GB/T 28011: Chinese national standard for EVA foam material testing
• REACH and RoHS for chemical safety
• Phthalate-free and PAH-free requirements for skin contact materials (e.g., AFIRM RSL)

Typical usage ratio

• 55–85% base resin content in foam blends; adjusted depending on foaming agent loading, filler percentage, and hardness targets

Downstream process integration

• Direct dry blending with blowing agents and crosslinkers; extrusion into sheets, or compression molding into shoe sole cavities under controlled temperature and pressure for cell structure development

Final product types

• Shoe midsoles and outsoles
• Sporting goods pads
• Cushioning mats and insoles
• Foamed children’s play mats

4. Cable and Wire Protective Compounds

Manufacturers of power cables and communication wires select ES18002 as a core ingredient for flame-retardant and flexible sheathing. Its balance of processability and dielectric stability meets demanding insulation standards, and it facilitates the uniform dispersion of flame-retardant additives in compound extrusion lines for electrical safety assurance.

Industry compliance standards

• IEC 60502-1: Power cables with extruded insulation
• UL 1581: Reference standard for electrical wires, cables, and flexible cords
• RoHS Directive (2011/65/EU) for restricted substances
• REACH compliance for chemical restrictions

Typical usage ratio

• 35–55% of total sheathing compound formulation, combined with flame retardants, fillers, and stabilizers; levels tuned for cable diameter, voltage class, and flexibility

Downstream process integration

• High-shear compounding with flame-retardant additives, colorants, and antioxidants; pelletizing and subsequent extrusion around conductor cores using crosshead extruders at 110–140°C

Final product types

• Jacketing for low- and medium-voltage power cables
• Flexible control cable insulation
• Telecommunication wire sheaths
• Specialty flame-retardant cable jackets

5. Film Blown Packaging Materials

Packaging converters use ES18002 for multilayer and mono-layer film extrusion, targeting applications that require clarity, flexibility, and puncture resistance such as food wraps and grocery bags. Its compatibility with LDPE and process stability support reliable bubble formation and thickness control in high-throughput blown-film lines.

Industry compliance standards

• FDA 21 CFR 177.1350: Food-contact compliance
• EU 10/2011: Plastics materials and articles for food contact (when applicable)
• ISO 527: Plastic film mechanical property testing
• China GB 9685 and GB 4806: National standards for food packaging material safety

Typical usage ratio

• 10–30% by weight in blends with LDPE or LLDPE, adjusted according to film thickness, clarity, and impact resistance requirements

Downstream process integration

• Pre-mixing with co-polymer resins and slip/antiblock agents; fed to film blowing extruder at standardized temperatures (typically 120–150°C), then inflated and wound as finished rolls post-inline gauge and corona treatment

Final product types

• Stretch wrapping films
• Cling food wrap films
• Lightweight retail bags
• Protective overwrap sheets