Applications of Celanese Ateva 1820 EVA in Industrial Manufacturing

Celanese Ateva 1820 EVA is a high-quality ethylene vinyl acetate copolymer, widely used as a technical polymer matrix or functional modifier in various industrial manufacturing lanes. The following scenarios reflect authentic downstream verticals, process integrations, and compliance requirements relevant to major B2B users.

1. Photovoltaic Encapsulant Film Production

Manufacturers select Ateva 1820 EVA as a fundamental base resin for producing encapsulant films used in solar panel lamination. Its specific vinyl acetate content enhances adhesion to both silicon wafers and glass layers, ensuring longevity and performance stability under UV irradiation and humidity. This grade meets strict requirements for low gel content, consistent melt flow, and reliable optical clarity demanded throughout the PV supply chain.

Industry compliance standards

• IEC 61215 Photovoltaic (PV) Module Standards
• UL 1703 Safety Standard for Flat-Plate PV Modules
• RoHS and REACH Chemical Compliance (EU)
• ISO 9001:2015 Quality Management for PV Film Production

Typical usage ratio

• Used as 70–95% of total encapsulant film mass; lower ratios with functional additives such as crosslinking agents, UV absorbers, and process aids. Adjustment depends on targeted optical properties and lamination conditions.

Downstream process integration

• Direct extrusion into sheets, EVA pellet mixing in compounding lines, vulcanization and crosslinking during solar module lamination step.

Final product types

• PVA-based encapsulant films
• Thermoplastic encapsulation layers for crystalline silicon and thin-film solar panels
• Backsheet adhesives for PV modules
• UV-resistant solar panel cover sheets

2. Hot Melt Adhesive Formulation

Industrial adhesive producers employ Ateva 1820 EVA as a primary resin component in the creation of hot melt formulations for packaging, furniture assembly, and bookbinding. It delivers the melt viscosity balance and adhesive flexibility required for reliable, permanent bonds across challenging substrates, allowing for rapid application cycles and efficient mechanical dispensing on high-speed automated lines.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for Food Contact Packaging)
• EN 923:2005 Adhesive Terminology (Europe)
• REACH Annex XVII Phthalate Content Restrictions
• ISO 9001:2015 (for adhesive production facilities)

Typical usage ratio

• 35–65% by total weight of adhesive, varied depending on tackifier and wax loading. EVA content is tailored to set time, open time, and substrate compatibility requirements.

Downstream process integration

• Compounding of EVA pellets in mixers or internal kneaders, dispersion of resins and additives, extrusion into pellets, application as molten adhesive via slot, spray, or roller coater.

Final product types

• Hot melt sticks and pellet adhesives
• Food and beverage carton adhesives
• Book spine glues
• Multipurpose industrial assembly adhesives

3. Wire and Cable Sheathing Compounds

Producers of electrical wire and cable insulation blend Ateva 1820 EVA to achieve the required flexibility and stress-crack resistance in outer jacketing and insulation layers. The polymer’s thermal stability and resistance to environmental ageing permit reliable long-term use in demanding power and data cable applications, where consistent dielectric properties and flame resistance are mandatory.

Industry compliance standards

• UL 62, UL 83 Standards for Flexible Cords and Cables
• IEC 60245, IEC 60502 International Cable Standards
• RoHS Directive (EU) for hazardous substances
• CSA C22.2 Canadian Electrical Code

Typical usage ratio

• Up to 60% by weight of final compound, balanced with fillers (e.g., ATH for flame retardance), plasticizers, and stabilizers. Proportion depends on target mechanical and electrical properties.

Downstream process integration

• Premixing with fire retardants, melt blending via twin-screw extruders, pelletizing, direct extrusion onto copper/aluminum conductors as insulation or jacketing layers.

Final product types

• Low-voltage power cables
• Household appliance cords
• Building wire jacketing
• Instrumentation and telecom cables

4. Foam Shoe Sole and Midsole Manufacturing

Footwear OEMs and specialty foam producers adopt Ateva 1820 EVA in compounding for expanded midsoles and outer soles. Its ability to deliver fine cell structure, impact dampening, and resilience makes it indispensable for both performance sports shoes and casual footwear. Process engineers achieve a balance of softness, abrasion resistance, and long-lasting comfort by adjusting formulation and processing variables.

Industry compliance standards

• ISO 20871:2018 Footwear – Outsoles – Test methods
• ISO 9001:2015 for footwear component production
• GB 20400-2006 Chinese Footwear Material Safety Standard
• REACH Annex XVII (restricted substances for consumer goods)

Typical usage ratio

• 60–85% by weight of foamed sole compound, in combination with blowing agents, crosslinking additives, color pigments, and fillers to tune density and hardness.

Downstream process integration

• Dry blending, injection or compression molding, foaming during heat cure, downstream lamination or assembly with textile uppers and outsoles.

Final product types

• Cushioned shoe midsoles
• Lightweight foamed outsoles
• Protective work boot inserts
• Children’s EVA slippers and sandals

5. Films for Flexible Packaging

Packaging converters utilize Ateva 1820 EVA in multilayer coextruded films for food, dairy, and pharmaceutical packaging. Its sealability at low temperatures and stress whitening resistance enables consistent hermetic seals across high-speed packaging lines. The copolymer’s compatibility with common polyolefins facilitates strong film structures with controlled gas permeability, suited to the preservation needs of sensitive goods.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-Vinyl Acetate Copolymers for Food Contact)
• EU 10/2011 (Plastics Food Contact Regulation)
• GMP Regulation (EU) No 2023/2006
• ISO 22000 Food Safety Management Systems (for food packaging producers)

Typical usage ratio

• 15–40% as a sealing or tie layer in multilayer film structure, balanced with LDPE, LLDPE, and functional additives depending on seal strength and clarity requirements.

Downstream process integration

• Feeding into blown film or cast film lines, surface treatment for corona or flame, multilayer coextrusion, downstream slitting and conversion into bags or wraps.

Final product types

• Lidding films for dairy, yogurt, and ready meals
• Flexible pouches for processed foods
• Cold-seal snack wraps
• Pharmaceutical blister and strip packaging films