Applications of SABIC 2518CO EVA in Industrial Manufacturing

SABIC 2518CO EVA is a high-performance ethylene-vinyl acetate copolymer designed to meet the rigorous needs of industrial manufacturers in downstream sectors where flexibility, clarity, and compatibility with various additives are vital. This material demonstrates proven reliability in several mature market segments, each governed by distinct regulatory standards and technical integration requirements. Below are key application domains with industry-specific details on formulation, compliance, manufacturing workflow, and end-use product formats.

1. Photovoltaic Encapsulant Film Manufacturing

Our material plays a distinguished role in the solar module supply chain, where consistent transparency, adhesive retention, and high UV stability are required for top-tier PV module encapsulants. Manufacturers select this grade for its melt-processability and long-term durability under elevated field temperatures, critical for crystalline silicon and thin-film solar panel protection.

Industry compliance standards

• IEC 61215: Terrestrial Photovoltaic (PV) Modules – Design Qualification and Type Approval
• UL 1703: Flat-Plate Photovoltaic Modules and Panels (North America market)
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
• REACH Regulation (EC) No 1907/2006

Typical usage ratio

• 60–100% by mass of the encapsulant film formulation; blend ratio adjusted depending on required gel content and module durability, with process modifiers or crosslinkers comprising the remainder.

Downstream process integration

• Direct feed into twin-screw extrusion lines for film production, typically using melt temperatures between 140–160°C before downstream lamination and crosslinking in solar module assembly plants.

Final product types

• Solar panel encapsulant sheets
• Photovoltaic module interlayers

2. Hot Melt Adhesive Formulation for Packaging

2518CO EVA is a key substrate resin for hot melt adhesive masses used by leading packaging converters in the beverage, dairy, and consumer goods sectors. Its balance of flexibility and adhesion supports high-speed case and carton sealing lines, optimizing bond performance even in chill chain logistics environments.

Industry compliance standards

• FDA 21 CFR 175.105: Adhesives for Food Packaging (Direct and Indirect Food Contact)
• Commission Regulation (EU) No 10/2011 on plastic materials and articles intended to come into contact with food
• ISO 22000: Food Safety Management applied at converter level

Typical usage ratio

• 35–70% of adhesive formulation mass; co-blended with tackifiers, waxes, and plasticizers to control open time and set speed based on packaging line requirements and substrate materials.

Downstream process integration

• Added to hot melt blending kettles or continuous mixers at 120–160°C; pelletized or blocked and supplied to automated dispensers for direct line application.

Final product types

• Corrugated case adhesives
• Carton sealing adhesives
• Bottle labeling adhesives

3. Cable and Wire Insulation Compounding

Cable manufacturing lines incorporate this grade in power and communication wire insulation layers, leveraging its low-temperature flexibility and enhanced environmental stress crack resistance. Process engineers value its compatibility with halogen-free flame retardant packages required by safety-critical building and infrastructure use cases.

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
• EN 50290-2-21: General construction requirements and performance for cables

Typical usage ratio

• 20–45% by weight in insulation compounds; ratio increases when blending with flame retardant fillers (e.g., ATH or MBR) and compatibilizers for specialty cable types.

Downstream process integration

• Fed with mineral flame retardants into Buss co-kneader or twin-screw extruders; compounded, pelletized, and then extrusion-coated onto copper or aluminum conductors forming the primary insulation layer.

Final product types

• Low voltage power cable insulation
• Telecommunication wire jackets
• Halogen-free flame-retardant cable compounds for building wiring

4. Foam Production for Footwear and Sporting Goods

This copolymer serves as the foundational polymer matrix in closed-cell foam sheet and injection-molded footwear parts, providing cushioning, flex, and wear resistance that align with consumer and occupational performance tests. Controlled vinyl acetate content ensures both processability and foam resilience during industrial-scale expansion.

Industry compliance standards

• ISO 20345: Personal Protective Equipment – Safety Footwear
• GB/T 15107: General Technical Specifications of Sports Shoes
• REACH Annex XVII restrictions for polycyclic aromatic hydrocarbons in footwear

Typical usage ratio

• 50–98% of total foam compound by weight; loading rate determined based on hardness, rebound, and density target, with balance of activators, foaming agents, and color masterbatches.

Downstream process integration

• Blended with co-agents and nucleating agents in Banbury mixers; processed into sheet via extrusion or through direct injection molding for midsole, outsole, or insole production.

Final product types

• Bespoke sport shoe midsoles
• Industrial and casual footwear insoles and outsoles
• Yoga mats and protective athletic pads

5. Film and Sheet Production for Greenhouse and Mulch Applications

Our EVA resin operates as a key modifier in blown and cast film operations for agricultural covers and mulch, delivering improved cold resistance, puncture toughness, and light transmission required for crop protection. Agricultural processors rely on tunable VA content to suit specific climates and film durability periods.

Industry compliance standards

• EN 13206: Plastic Covered Greenhouse Films
• China GB 8815: Agricultural Mulching Film Specifications
• ISO 16620-2: Biobased Plastics – Sustainability and Environmental Aspects

Typical usage ratio

• 10–35% of total film blend by mass, with ratios adjusted for desired balance of optical clarity (PAR transmission) versus mechanical load (wind/handling).

Downstream process integration

• Introduced as a pellet blend in tandem with LLDPE or LDPE, typically dosed at hopper of blown film extrusion lines; film thickness and composition adapted per end user crop cycle and region.

Final product types

• Greenhouse covering sheets
• Agricultural mulch films
• Low tunnel crop cover films

6. Medical Device Tubing and Bag Manufacturing

This copolymer is frequently incorporated into soft medical-grade tubing and flexible fluid bag films, supporting stringent mechanical, biocompatibility, and clarity benchmarks demanded in healthcare sectors. Its flexibility, resistance to sterilization-induced degradation, and formulation adaptability allow for device manufacturers to meet modern regulatory health care logistics chains.

Industry compliance standards

• ISO 10993: Biological Evaluation of Medical Devices (Part 5 & Part 10)
• USP Class VI biocompatibility (U.S. Pharmacopeia)
• EU MDR (Regulation (EU) 2017/745) on Medical Devices

Typical usage ratio

• 30–90% by weight, co-blended with plasticizers and clarity improvers; exact percentage set to meet durometer, tensile, and elongation specifications per device use-case.

Downstream process integration

• Direct feeding to twin-screw extruders or film-casting lines, followed by gamma, EtO, or autoclave sterilization validation per device protocol.

Final product types

• Infusion and blood bags
• Peristaltic pump tubing
• Flexible medical catheters