Applications of Versalis Greenflex FL 55 EVA in Industrial Manufacturing

Versalis Greenflex FL 55 EVA, a high-quality ethylene vinyl acetate copolymer, plays an integral role as a functional additive or base material in specialized manufacturing sectors. As the original manufacturer, we support downstream industries in implementing this material for performance-driven applications, with a focus on regulatory compliance, co-polymer integration, and process consistency. Below, we outline established industrial use cases, specifying compliance parameters, dosage benchmarks, processing methods, and finished goods tailored to each sector.

1. Injection-Molded Footwear Components

Footwear manufacturers incorporate this copolymer to achieve precise balance of flexibility, impact resilience, and lightweight structure in midsoles, insoles, and outsole units. During formulation, compounders tailor the vinyl acetate content and melt flow index to meet target hardness and resilience in athletic footwear, work boots, and slip-resistant shoes, aligning with sector-specific durability tests for the intended region or purpose.

Industry compliance standards

• ISO 20344:2021 (Personal protective equipment – Test methods for footwear)
• GB/T 3903.1-2008 (Chinese Standard for Physical and Mechanical Properties of Footwear Materials)
• REACH SVHC requirements for restricted substances
• EN 12568:2010 (Footwear Safety Standards—Component performance)

Typical usage ratio

• 30–80 parts per hundred resin (phr) in sole and midsole formulations, adjusted based on desired density, cushion, and rebound performance; higher ratios applied in soft sports applications and lower in work safety shoes for compression set resistance

Downstream process integration

• Granulate blending and compounding in twin-screw mixers, followed by direct injection molding with pigments, crosslinking agents, and process oils to shape footwear soles and inserts

Final product types

• Sports shoe midsoles
• Antistatic or oil-resistant safety footwear outsoles
• Soft EVA sandals and slippers
• Children’s lightweight shoes

2. Photovoltaic (PV) Module Encapsulation Films

Renewable energy manufacturers rely on this material for producing encapsulation films that protect and insulate solar cells while maintaining high optical transparency and reliable thermal stability. The controlled vinyl acetate content supports strong lamination bonding and stable light transmittance under prolonged UV exposure, meeting global PV standards for field durability and module safety certification.

Industry compliance standards

• IEC 61215:2021 (Crystalline silicon terrestrial PV modules—Design Qualification and Type Approval)
• UL 1703 (Flat-plate Photovoltaic Modules and Panels—North America)
• RoHS 2011/65/EU (Restriction of Hazardous Substances in electrical/electronic components)
• TÜV SÜD 2 PfG 1169/08.2007 (EVA encapsulant testing for PV modules)

Typical usage ratio

• 100 phr as core component in the encapsulant layer formulation, often blended with UV stabilizers and crosslinkers; film thickness typically controls module electrical insulation and weathering resistance

Downstream process integration

• Film casting or extrusion in precision calendering systems, crosslinking during lamination step with glass, and heat-press encapsulation of solar cells under controlled vacuum and temperature

Final product types

• Pilot-scale and industrial photovoltaic modules
• Flexible solar panel laminates
• Building-integrated PV elements
• Backsheets for solar panel assemblies

3. Cable Sheathing and Insulation Compounds

In electrical cable manufacturing, our material provides insulation and jacketing compounds with enhanced flexibility, electrical breakdown resistance, and long-term plasticizer stability. The resin enables compliance with global fire resistance, electrical, and migration standards, while maintaining processability for specialized sheathing needed in communication, power, and instrumentation cabling systems.

Industry compliance standards

• IEC 60502-1 (Power cables with extruded insulation and their accessories)
• UL 1581 (Reference Standard for Electrical Wires, Cables, and Flexible Cords)
• GB/T 8815-2008 (Chinese Standard for EVA insulation)
• RoHS Directive 2011/65/EU

Typical usage ratio

• 20–50 phr in low-voltage cable insulation; 30–70 phr in flexible sheathing, with ratio chosen by cable flexibility and flame retardance requirements for industrial, automotive, or telecommunications applications

Downstream process integration

• Melt-blending with stabilizers, colorants, and flame retardants in internal mixers or twin-screw extruders; extrusion coating of conductor wires, followed by controlled cooling, sizing, and in-line quality control for thickness and surface finish

Final product types

• Flexible power cable insulation
• Halogen-free flame retardant cable jackets
• Signal and data transmission cord sheaths
• Automotive wiring harness insulation

4. Hot Melt Adhesive (HMA) Formulations

Producers of industrial adhesives incorporate this material as a key polymer matrix in hot melt adhesives designed for bookbinding, wood assembly, packaging, and hygiene products. The copolymer's melt viscosity, open time, and compatibility with tackifiers and plasticizers determine the adhesive’s performance in segment-specific bonding operations, ensuring compliance with end-use migration and exposure limits.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for indirect food contact)
• EN 923 (Adhesives—Terms and definitions, for quality traceability)
• ISO 9001:2015 (Adhesive production quality systems)
• REACH Annex XVII (Restrictions on hazardous chemicals in adhesives)

Typical usage ratio

• 30–60 phr as base polymer in general-purpose and packaging HMA; up to 70 phr in high-tack bookbinding adhesives, with formulation fine-tuned around viscosity, setting time, and softening point for specific substrate compatibility

Downstream process integration

• Batch blending with rosin esters, waxes, or synthetic tackifiers in melt kettles or continuous extruders, followed by pelletization or die extrusion; melting and application in slot or spray coaters at end user’s packaging or converting line

Final product types

• Book and magazine spine adhesives
• Carton and case-sealing adhesives
• Personal care hygiene pad adhesive strips
• General industrial assembly hot melts

5. Foamed Sheet and Packaging Applications

Manufacturers of packaging materials and protective foams use this grade as the principal resin for extruded and molded foam sheets with tailored resilience, cushioning, and chemical resistance. The controlled cell structure achieved through this resin supports functional requirements in impact-absorbing mats, protective transport packaging, and shoe inserts, with adherence to consumer goods and packaging safety standards.

Industry compliance standards

• EN 13427:2004 (Packaging—Requirements for use of European Standards in packaging and packaging waste)
• FDA 21 CFR 177.1350 (Resinous and polymeric coatings for food contact surfaces, as applicable)
• GB 9685-2016 (Chinese Food Safety Standard—Additives in food contact materials)
• REACH SVHC compliance for consumer safety

Typical usage ratio

• 40–90 phr as base resin in foaming compound; loading depends on density targets, degree of expansion desired, and foam modifier selection for packaging, crafts, or sports applications

Downstream process integration

• Resin and foaming agent premixing in high shear mixers, followed by extrusion foaming or compression molding with in-line control of expansion, cooling rate, and surface finish for consistent cell structure

Final product types

• Cushioning packaging foams
• Shock-absorbing sports mats
• Protective foam inserts for electronics and precision tools
• Disposable foam trays and sheet goods

6. Film Production for Flexible Packaging

Flexible packaging manufacturers select this copolymer for formulating blown and cast film structures with demanding toughness, tear strength, and clarity specifications. Its coextrusion compatibility enables multilayer films for barrier pouches, shrink sleeves, and sealant layers, supporting food contact, pharmaceutical, and consumer product applications requiring regulatory status for direct or indirect contact.

Industry compliance standards

• FDA 21 CFR 177.1520 (Olefin polymers for food contact films)
• EU Regulation No 10/2011 (Plastic materials and articles intended to come into contact with food)
• GB 4806.7-2016 (Food safety—Plastic materials and articles in food contact)
• ISO 22000:2018 (Food safety management in packaging film plants)

Typical usage ratio

• 15–40 phr as modifying component in PE or multilayer coextruded films; higher ratios improve sealability and flexibility in shrink or stretch films, with final loading set by gauge requirements and mechanical property targets

Downstream process integration

• Resin dosing into blown or cast film extruders along with base polyolefins, slip agents, and anti-block agents; multilayer film lamination or direct sealing onto rigid containers during downstream conversion

Final product types

• Food barrier pouches and wrappers
• Shrink film for beverage and pallet packaging
• Sterile pharmaceutical blister lidding films
• Consumer goods flexible overwrap films