Applications of Celanese Ateva 1070 EVA in Industrial Manufacturing

Celanese Ateva 1070 EVA, an ethylene vinyl acetate copolymer with 18% VA content and high flexibility, is widely trusted in specialty films, wire and cable insulation, hot melt adhesives, solar panel encapsulation, and pharmaceutical packaging. As the manufacturer, we respond to evolving compliance and quality requirements, supporting diverse industrial users. Below are the core downstream applications where Ateva 1070 EVA’s properties and performance meet rigorous production needs and regulatory standards.

1. Photovoltaic (PV) Module Encapsulation

Solar panel manufacturers rely on the consistent rheology, optical transparency, and environmental durability of this EVA grade for encapsulation layers. It enters the lamination process to protect sensitive PV cells from moisture, mechanical stress, and UV exposure, supporting long service lifetimes and warranted power output retention.

Industry compliance standards

• IEC 61215 (Crystalline Silicon Terrestrial Photovoltaic Modules Design Qualification)
• IEC 61730 (Photovoltaic Module Safety Qualification)
• UL 1703
• ISO 9001:2015 relevant to panel manufacturing QC

Typical usage ratio

• Encapsulation films are composed of 65–95% EVA by weight, with adjustments based on modulating crosslink density and additives according to cell layout and climatic certification targets.

Downstream process integration

• Resin is melt compounded with UV stabilizers and curing agents, followed by extrusion calendaring into sheet; sheets are layed-up atop and below PV cell strings before vacuum lamination under heat/pressure.

Final product types

• Crystalline-silicon PV modules
• Thin-film solar panels
• BIPV encapsulated glass panels

2. Wire and Cable Insulation

Cable compounders use this copolymer to impart electrical insulation, low-temperature flexibility, and resistance to wear or environmental stress cracking in both power and signal transmission cables, particularly for demanding sectors such as automotive and industrial automation.

Industry compliance standards

• UL 758 (Appliance Wiring Material Standard)
• IEC 60227 (PVC Insulated Cables for 450/750 V)
• RoHS Directive (2011/65/EU) for restricted substances
• REACH Regulation (EC 1907/2006)

Typical usage ratio

• Used at 25–40% by weight in insulation or sheathing compound, blended with fillers, antioxidants, and flame retardants; composition fine-tuned for required dielectric and mechanical performance as verified by type approval testing.

Downstream process integration

• Dry blend prepared in high-shear mixers, then melt compounded and pelletized; pellets are fed to extruders for continuous coating of metallic conductors.

Final product types

• Low-voltage power cables
• Flexible appliance wires
• Automotive primary wire insulation
• Instrument and data cables

3. Hot Melt Adhesive Formulations

Manufacturers of packaging, bookbinding, and hygiene product adhesives rely on the balance of tackiness, cohesive strength, and processability delivered by this grade in hot melt systems. It allows rapid assembly operations and strong adhesion on a range of substrates, with performance tailored through formulating techniques.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives product for indirect food contact)
• EN 923 (Adhesives – Terms and Definitions, for product classification)
• ISO 9001:2015 for adhesive batch controls
• ASTM D1876 (Peel resistance test of adhesives)

Typical usage ratio

• 15–40% by weight in the base polymer matrix, with content modulated according to viscosity, open time, and bond strength requirements in the chosen adhesive system.

Downstream process integration

• Granules are compounded with tackifiers, waxes, and other modifiers in a heated internal mixer; the melt is filtered and cast into blocks or pellets for subsequent melting and application in hot melt equipment.

Final product types

• Carton and case sealing adhesives
• Disposable hygiene articles (e.g., diaper construction adhesives)
• Bookbinding hot melt glues
• Product assembly bonding agents

4. Flexible Film and Sheet for Food Packaging

This EVA copolymer enhances sealability, clarity, and puncture resistance in multilayer food contact films. Blown or cast film processors value its compatibility with PE and its ability to generate a low-seal initiation temperature, supporting productivity and shelf life in primary and secondary packaging.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymer resin as food contact surface)
• EU 10/2011 (Plastic materials and articles intended to come into contact with food)
• Chinese GB 4806.7-2016 (National Food Safety Standard for Plastic Packaging Materials)
• ISO 22000 (Food safety management in packaging production)

Typical usage ratio

• Used at 5–20% by weight in co-extruded multilayer film structures; ratio adjusted to desired sealing properties and mechanical strength, as well as film gauge.

Downstream process integration

• Feedstock is dry blended with other polymers, then processed in blown/cast film extrusion; EVA-rich layers constitute the inner sealant or tie layers of packaging films.

Final product types

• Lidding films for ready-to-eat packs
• Flexible pouches and sachets
• Vacuum packaging bags
• Thermoformable trays

5. Pharmaceutical and Medical Packaging

Producers in the healthcare sector use this EVA grade for forming high-barrier, flexible films suitable for sensitive drug and device packaging. It helps achieve moisture resistance and pharmaceutical stability, meeting regulatory mandates on extractables and leachables.

Industry compliance standards

• US Pharmacopeia (USP) <661.1> Plastic Packaging Systems
• Ph.Eur. 3.2.2 Plastic Containers and Closures
• FDA 21 CFR 177.1345 (Ethylene-vinyl acetate copolymers in contact with drugs)
• ISO 13485 (Quality management systems for medical devices packaging production)

Typical usage ratio

• Utilized at 10–35% by weight in companion to base resins; percentage based on required permeability, elasticity, and compatibility with secondary sterilization techniques.

Downstream process integration

• Compounded with barrier resins (such as PVdC or PA), calendared or extruded into film, followed by conversion into bags, blister films, or overwraps in pharmaceutical cleanrooms.

Final product types

• IV solution overwrap films
• Transdermal patch backings
• Blister packaging for solid oral drugs
• Diagnostic kit flexible pouches