Applications of Celanese Ateva 1641 EVA in Industrial Manufacturing

Celanese Ateva 1641 EVA offers consistent melt flow, flexibility, and clarity, supporting formulation stability and product reliability in major industrial manufacturing sectors. Below, we outline distinct downstream applications where our material integrates directly into established production processes, addressing industry-driven performance and compliance needs.

1. Photovoltaic Module Encapsulation

Leading solar panel manufacturers utilize this EVA grade in the encapsulation of photovoltaic (PV) cells to enhance optical transmission, long-term adhesion, and weatherability. The material enters film extrusion processes, providing UV resistance and enduring elastic bonding properties essential for both crystalline silicon and thin-film solar modules, where cell protection and light transmission are critical for overall panel efficiency and operating lifespan.

Industry compliance standards

• IEC 61215 (Crystalline silicon terrestrial PV modules – Design qualification and type approval)
• UL 1703 (Flat-Plate Photovoltaic Modules and Panels)
• IEC 61730 (PV Module Safety Qualification)
• RoHS Directive (2011/65/EU)

Typical usage ratio

• Used at 100% as the film matrix for lamination; thickness ranges from 0.45 mm to 0.55 mm per sheet, adjusted according to module construction and specific cell requirements

Downstream process integration

• Fed as pellets or resin directly into twin-screw film extrusion lines; resulting film is layered onto PV cells prior to vacuum lamination and curing

Final product types

• Photovoltaic module encapsulant sheets
• Crystalline silicon solar panels
• Thin-film photovoltaic panels
• Bifacial solar modules

2. Wire and Cable Insulation Compounds

International wire and cable producers incorporate this formulation into insulation and jacketing layers for low- and medium-voltage cables. Its low gel content and uniform melt flow contribute to stable extrusion, ensuring electrical safety and outstanding flexibility. These properties are vital in indoor power wiring, data transmission, and automotive harnesses, where consistent dielectric strength and environmental resistance must meet regulated safety thresholds.

Industry compliance standards

• UL 83 (Thermoplastic-Insulated Wires and Cables)
• IEC 60228 (Conductors of Insulated Cables)
• REACH Regulation (EC 1907/2006)
• RoHS Directive (2011/65/EU)

Typical usage ratio

• Base polymer forms 50–90% of the insulation layer; remainder comprises fire retardants, antioxidants, and color masterbatches adapted for cable rating

Downstream process integration

• Blended in internal mixers with additive packages, then directly fed to single-screw extruders applying insulation or jacketing over annealed copper or aluminum conductors through continuous extrusion and cooling operations

Final product types

• Building wire insulation
• Flexible appliance cords
• Automotive wire harnesses
• Coaxial and communications cable jackets

3. Hot Melt Adhesive Formulations

Manufacturers of industrial adhesives employ this EVA as a primary backbone for formulating pressure-sensitive and packaging glues. Its consistent vinyl acetate content ensures predictable open time, bond strength, and viscosity in both low- and high-speed dispensing lines. The material allows precise control over melt point, critical for case and carton sealing, woodworking, and hygiene product assembly where reliable adhesion and process uptime determine production throughput.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for indirect food contact applications)
• ISO 9001 (Adhesive manufacturing quality management systems)
• REACH Compliance (EC 1907/2006)

Typical usage ratio

• Forms 30–60% of total hot melt adhesive mass; proportion tailored for open time, tack, and bond line flexibility according to application speed and substrate

Downstream process integration

• Incorporated in heated mixing vessels with tackifiers, waxes, and stabilizers, then cast into blocks, pellets, or pillows for subsequent hot melt application on production lines

Final product types

• Packing and case-sealing adhesives
• Bookbinding glues
• Disposable hygiene article adhesives
• Pressure-sensitive tapes and labels

4. Flexible Film and Sheet Production for Packaging

Film converters utilize this EVA type to produce flexible, low-temperature sealable packaging for food and consumer products. This balance of flexibility and toughness supports downgauging and mechanical performance in blown or cast film lines. Clarity and puncture resistance are critical for packaging formats where shelf-life and visual appeal must align with regulatory and food safety obligations across multiple geographies.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers for food contact)
• EU Regulation 10/2011 (Plastic materials and articles for food contact)
• ISO 22000 (Food safety management for packaging)
• GMP Regulation EC 2023/2006 (Good Manufacturing Practice for food contact)

Typical usage ratio

• Comprises 10–30% of multilayer film structures for food wraps; up to 100% in monolayer shrink films depending on sealing and mechanical specifications

Downstream process integration

• Pellets introduced directly into the main hopper of blown or cast film extruders, optionally co-extruded with LDPE, LLDPE, or tie resins to form multilayer food packaging laminates

Final product types

• Vacuum food pouches
• Stretch and shrink wraps
• Frozen food bags
• Modified atmosphere package (MAP) films

5. Footwear and Sports Equipment Injection Molding

OEM suppliers to global footwear and sporting goods brands use this EVA in the fabrication of midsoles, outsoles, and protective pads through injection and compression molding. Its balanced flexibility and impact resilience meet the mechanical cycling and cushioning demands of athletic and fashion footwear. Strict batch consistency reduces defect rates in both monochrome and color-matched designs, especially as sportswear brands push for lighter, more durable components with defined tactile response.

Industry compliance standards

• EN ISO 20345 (Safety footwear safety requirements)
• REACH Compliance
• PROP 65 (California OEHHA safe materials)
• SATRA TM77 (Footwear material flexing test)

Typical usage ratio

• Acts as the primary matrix polymer at 70–100% for midsole compounds; can be blended with fillers, crosslinking agents, and pigments based on hardness and density targets

Downstream process integration

• Compounds are dry blended with color and foaming agents, then injection or compression molded into pre-designed tooling for shoe component fabrication

Final product types

• Sports shoe midsoles
• EVA outsoles
• Protective sports gear (knee pads, shin guards)
• Comfort and orthopedic footwear components