Applications of Celanese Ateva 3342AC EVA in Industrial Manufacturing

Celanese Ateva 3342AC EVA is widely used across multiple industrial manufacturing sectors requiring controlled flexibility, transparency, and processability in polymeric materials. The following sections detail specific downstream application scenarios where this grade’s properties and compliance attributes deliver practical advantages in real-world production environments.

1. Photovoltaic Module Encapsulation Films

Manufacturers utilize Ateva 3342AC EVA in the fabrication of encapsulation films for solar photovoltaic modules, where its clarity and cross-linking behaviour contribute to durable, weather-resistant lamination. The material’s controlled vinyl acetate content supports gel formation under thermal processing, ensuring lasting adhesion and electrical insulation of cells throughout the module lifecycle.

Industry compliance standards

• UL 1703 Standard for Flat-Plate Photovoltaic Modules and Panels
• IEC 61215: Terrestrial Photovoltaic (PV) Modules – Design Qualification
• IEC 61730: PV Module Safety Qualification
• RoHS Directive 2011/65/EU (for restricted hazardous substances)

Typical usage ratio

• 65–80% of encapsulant film weight; adjustments occur based on target lamination thickness, anticipated UV exposure, and degree of cell coverage

Downstream process integration

• Compounding with additives (UV absorbers, crosslinking agents), film extrusion, roll lamination with glass and cell layers, followed by autoclave or vacuum lamination at elevated temperatures (140–155°C)

Final product types

• Encapsulation films for crystalline silicon and thin-film solar modules
• Backsheets and protective barrier films in PV assemblies

2. Hot Melt Adhesive Formulations

Producers of hot melt adhesives select this grade for its balance of flexibility, adhesion, and melt viscosity, facilitating stable performance in high-speed case and carton sealing operations. The specific vinyl acetate content and melt index provide controlled open times required for automated end-use applications. Custom blends address substrate-specific requirements and operational windows.

Industry compliance standards

• FDA 21 CFR 175.105 (for indirect food contact adhesive applications)
• ASTM D4498: Standard Specification for Packaging and Industrial Hot Melts
• REACH Regulation (EC) No 1907/2006
• ISO 9001 Certified Quality Management Systems

Typical usage ratio

• 18–40% of adhesive formulation by weight; the ratio depends on tackifier-resin compatibility, heat resistance targets, and end-use substrate absorption rates

Downstream process integration

• Melt blending with tackifiers, waxes, and plasticizers in high-shear reactors, extrusion, and pelletizing before packaging for downstream industrial adhesive application equipment

Final product types

• Case and carton sealing hot melts
• Palletizing adhesives
• Bookbinding glues for automated lines

3. Wire and Cable Insulation Compounds

Producers of power and communication cable insulation compounds rely on this material for its electrical properties, flexibility at low temperatures, and compatibility with flame retardant systems. This grade supports co-extrusion and continuous coating operations, promoting consistent thickness and surface finishes required for modern cable designs exposed to outdoor or harsh environments.

Industry compliance standards

• UL 62 and UL 83 for flexible cords and building wire
• IEC 60502-1: Power Cables with Extruded Insulation
• RoHS Directive 2011/65/EU
• VDE 0281 standards (Germany)

Typical usage ratio

• 34–60% of compound, adjusted to balance target Shore hardness and flame resistance when combined with mineral fillers and fire retardants

Downstream process integration

• Dry blending and melt compounding with plasticizers, fillers, and FR systems; twin-screw extrusion to produce pellets; continuous wire coating via extrusion below 200°C

Final product types

• Low-voltage building wires and flexible cords
• Sheathing for communication and instrumentation cables
• Control cable jacketing for industrial signal lines

4. Flexible Packaging Films

Operators in food and consumer goods packaging employ this material in multilayer co-extruded films, where it contributes sealing performance, transparency, and puncture resistance. The raw material’s melt index and VA content ensure compatibility with polyethylene or polyolefin layers, supporting stringent migration and safety requirements for consumer touchpoints.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-Vinyl Acetate Copolymers in food contact)
• EU Regulation No 10/2011 on Plastic Materials for Food Contact
• GMP System ISO 22000: Food Safety Management
• MERCOSUR GMC/RES. No 02/12 (South American food contact plastics)

Typical usage ratio

• 12–30% of film layer composition; the range reflects mechanical property uses and thickness of the EVA layer in multilayer film structures

Downstream process integration

• Incorporation into blown or cast film co-extrusion lines, often as a tie or sealant layer, with corona treatment as required for printability or metallization

Final product types

• Barrier films for vacuum packaging
• Easy-peel food tray lidding films
• Cold seal flexible packaging laminates

5. Footwear Foam and Midsole Molded Parts

Footwear material producers value this grade’s processability in injection and compression molding lines, where its cell nucleation and rebound provide shock absorption and long-term mechanical stability. Its composition enables microcellular foam formation for ergonomic components without plasticizer migration, supporting lightweight, comfort-driven designs for athletic and leisure footwear.

Industry compliance standards

• EN ISO 20345: Personal Protective Equipment – Safety Footwear
• REACH Regulation (EC) No 1907/2006
• GB/T 15107-2013: Sports Footwear Performance (China)
• ISO 9001 Quality Management for consistent production

Typical usage ratio

• 40–85% in foam items; the amount depends on cushioning, rebound characteristics, and shore A hardness required for each footwear segment

Downstream process integration

• Melt blending with foaming agents, colorants, and cross-linkers; direct feeding into foam extrusion, injection, or compression molding units; post-molding cross-linking by oven curing as needed

Final product types

• Shoe midsoles for sports and running footwear
• Insoles, heel pads, and outsole inserts for occupational shoes
• Children’s sandals and casual shoes with lightweight soles