Applications of Celanese Ateva 1811A EVA in Industrial Manufacturing

Celanese Ateva 1811A EVA is a specialized ethylene vinyl acetate copolymer widely used across several key industrial fields where precise process control and strict compliance are fundamental to finished product quality. As the original manufacturer, we support our customers through technical support, material traceability, and direct integration into downstream processes for enhanced product reliability and regulatory conformity.

1. Photovoltaic Encapsulant Sheet Production

Downstream photovoltaic manufacturers use this EVA grade as the primary polymer matrix for solar cell encapsulant sheets. Its controlled vinyl acetate content and low gel count enable high optical transmission and thermal stability, ensuring robust protection for crystalline and thin-film photovoltaic modules. Processors blend the material with stabilizers and crosslinking agents before extrusion and subsequent lamination to achieve long-term weathering resistance and electrical insulation under varying environmental conditions.

Industry compliance standards

• IEC 61215 (Crystalline silicon terrestrial photovoltaic modules design qualification and type approval)
• UL 1703 (Standard for Flat-Plate Photovoltaic Modules and Panels)
• RoHS Directive (Restriction of Hazardous Substances)
• REACH Regulation (Registration, Evaluation, Authorisation and Restriction of Chemicals)

Typical usage ratio

• Polymer base forms 96–99% of the encapsulant formulation by weight; blending ratio may shift to adjust crosslinking and mechanical properties, depending on cell type and power module performance targets.

Downstream process integration

• Material feeds directly into compounding extruders with predetermined additive mixes; sheet extrusion operates between 100–130°C, immediately followed by lamination above 140°C for crosslinking and adhesion over PV cells.

Final product types

• Photovoltaic encapsulant sheets
• Semi-finished solar module films
• Complete photovoltaic panels
• Building-integrated PV modules (BIPV)

2. Hot Melt Adhesives for Packaging and Bookbinding

Industrial adhesive manufacturers select this EVA copolymer as the core resin in hot melt adhesive formulations tailored for automated paper, board packaging, and bookbinding lines. The material's melt viscosity and compatibility with waxes, tackifiers, and plasticizers assure reliable adhesion performance, set speed, and clean machinability on both porous and coated surfaces under high-speed production requirements.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for Food Packaging)
• EN 923 (Adhesives - Terms and definitions)
• ISO 4589 (Oxygen Index Test for Flammability)
• TAPPI T 813 (Adhesion of Fiberboard)

Typical usage ratio

• 40–60% EVA by total adhesive weight; customers adjust ratios in relation to tackifier loading and flexibility required for specific end-use corrugated or bound media.

Downstream process integration

• Material is pellet-fed into industrial mixers with controlled dosing of additives; hot blending occurs at 120–180°C prior to pelletization; pellets are subsequently remelted and applied via slot dies or spray heads on packaging or binding lines.

Final product types

• Case and carton sealing adhesives
• Spine glues for perfect-bound books
• Label stock adhesives
• Pouch and flexible package adhesives

3. Wire and Cable Insulation Compounds

Cable compound producers use this copolymer as the principal matrix for insulating and jacketing materials in low-voltage wire applications. Its mechanical ductility and electrical resistivity support cable flexibility, abrasion resistance, and protection from environmental exposure. Manufacturers compound with stabilizers, flame retardants, and process aids for both primary and secondary insulation layers.

Industry compliance standards

• IEC 60502-1 (Power cables with extruded insulation)
• UL 62 (Flexible Cords and Cables)
• RoHS Directive (Heavy metal and flame retardant restrictions)
• REACH Annex XVII (Restricted Substances)

Typical usage ratio

• Base polymer content ranges from 60–85% of compound; loading varies depending on filler, flame retardant, and pigment proportion required by insulation specification.

Downstream process integration

• Pellets are dry-blended with additives; twin-screw extrusion compounds at 100–160°C; strands are pelletized and then fed to wire extrusion lines for crosshead coating onto copper/aluminum conductors.

Final product types

• Low-voltage power cable insulation
• Communication wire jackets
• Flexible appliance cords
• Specialty cable sheathing (marine, automotive)

4. Foam Shoes and Soles Manufacturing

Footwear producers utilize this material as a core ingredient in the foam midsole and outsole production process. Its tailored melt flow and resilience properties enable consistent cell structure, cushioning, and wear life when compounded with blowing agents and process modifiers. Direct injection and compression molding processes yield lightweight, shock-absorbing shoe components for a range of consumer and industrial safety applications.

Industry compliance standards

• ISO 20344 (Personal protective equipment – Test methods for footwear)
• EN 71-3 (Migration of certain elements, for footwear with children’s applications)
• GB/T 15107 (Chinese national standard for EVA foam shoes)
• REACH (Chemical safety, phthalates restrictions)

Typical usage ratio

• Base polymer loading is 75–95% by compound weight; blowing agent and pigment additions vary according to required hardness, density, and color performance in final foamed article.

Downstream process integration

• Material is mixed with blowing agent masterbatch; compounds are granulated, loaded into injection or compression molds at 150–175°C; in-mold foaming occurs under steam or direct thermal input, with demolding after set.

Final product types

• Injection-molded foam midsoles
• Compression-molded outsoles
• Antistatic industrial safety footwear bases
• Children’s and sports shoe soles

5. Flexible Film for Food and Non-Food Packaging

Converters in the food and consumer packaging sectors process this EVA copolymer for extrusion of flexible films and multilayer lamination structures. The resin’s sealability, puncture resistance, and low-temperature flexibility deliver dependable performance for applications requiring direct food contact and cold storage. Processors control formulation clarity, drawability, and sealing temperature to optimize packaging integrity for production line speeds and shelf-life requirements.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-Vinyl Acetate Copolymers for Food Contact)
• EU Regulation No 10/2011 (Plastic Materials in Contact with Food)
• GMP Regulation (EC) No 2023/2006 (Good Manufacturing Practice for Food Contact Materials)
• ISO 22000 (Food Safety Management standard, for packaging supply chains)

Typical usage ratio

• Films typically contain 55–80% EVA; ratio can shift depending on barrier properties, clarity, and peelability required by multilayer film constructions or coextrusion with other polymers.

Downstream process integration

• Material is dry blended with slip, antiblock, and stabilizer additives; feeds into blown or cast film lines with melt temperatures between 110–200°C; films pass through chill rolls or air rings and are slit, wound, or further laminated per end-customer specifications.

Final product types

• Food packaging films
• Lidding and sealant layers
• Vacuum pouch and bagstock
• Non-food flexible pouches (personal care, detergent, agrochemical packages)