Applications of Versalis Greenflex FD 53 EVA in Industrial Manufacturing

Versalis Greenflex FD 53 EVA, a high-performance ethylene-vinyl acetate copolymer, delivers consistent quality and tailored physical properties for advanced processing requirements across several manufacturing sectors. This section outlines key downstream applications, providing detailed information on industry compliance, quantitative usage, process integration, and final product deliverables—based on our direct manufacturer experience and ongoing collaboration with industrial end-users.

1. Technical Footwear Midsoles and Outsoles

The material's flexibility, impact absorption, and processability underpin its critical role in footwear manufacturing, especially for sports and safety shoes requiring reliable energy return and shock dispersion. Blending with other polymers or blowing agents achieves targeted density and resilience, while strict regulatory compliance guides every stage from compounding to finished molding.

Industry compliance standards

• REACH Regulation (EC) No 1907/2006
• ISO 20345:2022 (Personal protective equipment – Safety footwear)
• California Proposition 65 (Safe Drinking Water and Toxic Enforcement Act)
• GB/T 15107-2013 (Chinese standard for sports footwear materials)

Typical usage ratio

• Blending ratio in EVA foaming compounds: 25%–55% by weight, adjusted for shore hardness, final density, and slip resistance criteria

Downstream process integration

• Material incorporated during mastication and compounding, then granulated for injection, compression, or direct foaming extrusion; crosslinking and blowing agents added as required for lightweight components

Final product types

• Shock-absorbing midsoles for athletic shoes
• Oil- and slip-resistant outsoles for work and safety footwear
• Custom die-cut insoles for orthopedic and children’s shoes
• Sports slide sandals and flip-flop soles

2. Hot Melt Adhesive Formulations

Our customers value the copolymer’s low-temperature flexibility and controlled melt flow for hot melt adhesives applied in packaging, bookbinding, and consumer assembly. Consistent formulation results hinge on granular purity and tight control of vinyl acetate content, while batch traceability supports regulatory audits and customer-specific requirements.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for food packaging contact)
• EN 923:2005 (Adhesives — terminology and technical basis)
• ISO 9001:2015 (Quality Management System, batch traceability)
• ASTM D3236 (Standard Test Method for Apparent Viscosity of Hot Melts)

Typical usage ratio

• Base polymer typically constitutes 30%–60% of adhesive mass; adjusted according to tackifier and wax ratio for final viscosity and open time

Downstream process integration

• Material is melt-compounded with tackifiers, plasticizers, and process oils in a high-shear mixing extruder; end formulation supplied as pellets, blocks, or sticks for downstream melting and application by slot die or extrusion nozzle

Final product types

• Carton sealing adhesives for food and beverage packaging lines
• Binding adhesives in commercial book production
• Label and tape pressure-sensitive adhesives
• Assembly adhesives for small consumer electronics housings

3. Wire and Cable Sheathing Compounds

The superior dielectric properties and ambient flexibility of the polymer enable high-performance cable sheathing, especially for low-voltage and automotive wiring. Our consistent batch quality is optimized for compounding with flame retardants and plasticizers so that downstream sheathing operations achieve mandatory industry certifications and pass severe environmental testing.

Industry compliance standards

• IEC 60228 (Conductors of insulated cables)
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
• UL 1581 (Reference standard for electrical wires, cables, and flexible cords)
• ISO 6722-1:2011 (Road vehicles — 60 V and 600 V single-core cables)

Typical usage ratio

• Polymer content: 60%–80% by weight in sheathing/cable jacket compounds; level set based on required flexibility, abrasion resistance, and flame retardancy

Downstream process integration

• Material fed into an internal mixer with fillers, antioxidants, and co-polymers; pelletized blend directly extruded over core conductors with controlled temperature profile for cross-sectional uniformity

Final product types

• Electric vehicle charging cables
• Signal and data transmission cables for electronics
• Appliance cords and harnesses
• Low-voltage automotive wires

4. Solar Cell Encapsulation Films

Photovoltaic module producers choose this raw material for precise control over transparency, elasticity, and optical adhesion required in the encapsulation of crystalline and thin-film solar panels. Batch consistency ensures compliance with stringent IEC and UL standards after laminating processes that demand reliable crosslinking and low residual color.

Industry compliance standards

• IEC 61215:2021 (Crystalline silicon terrestrial photovoltaic modules — Design qualification and type approval)
• UL 1703 (Flat-Plate Photovoltaic Modules and Panels)
• IEC 61730-1/2 (PV module safety standard, parts 1 and 2)
• RoHS and REACH for hazardous substance restrictions

Typical usage ratio

• Encapsulant film sheets typically use 100% of this EVA as the base polymer, with additional crosslinking agents, UV stabilizers, and antioxidants added at 1–5% total

Downstream process integration

• Material extrusion melted and calendared into sheets, then laminated between PV cells and glass using vacuum and heat (130–150°C) for set crosslink density and optical clarity

Final product types

• Encapsulant interlayer films for silicon, CIGS, and CdTe photovoltaic modules
• Protective barriers in building-integrated PV glass panels
• Rear encapsulant components in bifacial solar cells

5. Flexible Film and Sheet Extrusion for Packaging

Converters rely on the copolymer’s balance of strength and flexibility for blown and cast film processes, used in freezer-grade packaging and medical film. Food and pharmaceutical compliance audits often drive formulation selection, and continuous monitoring of gel count and clarity ensures consistency throughout high-speed production runs.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers for food contact)
• EU Regulation No. 10/2011 (Plastic materials and articles intended to come into contact with food)
• ISO 11607 (Packaging for terminally sterilized medical devices)
• GMP EC 2023/2006 (Good Manufacturing Practice for food packaging materials)

Typical usage ratio

• Film grade extrusion blends include 10%–40% EVA in LDPE or LLDPE matrices, adjusted for film seal strength, cold crack resistance, and optical requirements

Downstream process integration

• Material introduced into single- or multi-layer extruders for blown film bubbles or flat casting; incorporation in lamination substrates or co-extruded layers for specialized sealing, peelability, or puncture resistance

Final product types

• Frozen food pouches and storage films
• Peelable medical packaging sheets
• Flexible lid and tray lidding films
• Co-extruded pharmaceutical blister foils

6. Foam Sheets for Sports and Leisure Goods

The manufacturing of shock-absorbing foam mats, yoga blocks, and aquatic floating boards depends on the polymer’s foaming characteristics and long-term resilience. Strict adherence to child- and consumer-product safety regulations guides every batch, while process modifications for crosslinking density, color uniformity, and skin texture are standard in customer-specific production.

Industry compliance standards

• EN 71-3:2019 (Safety of toys — Migration of certain elements)
• ASTM F963 (Standard Consumer Safety Specification for Toy Safety)
• REACH Annex XVII (Restriction of certain hazardous substances)
• ISO 8124 (Children’s product safety standards)

Typical usage ratio

• EVA content in foaming blends: 50%–80% by weight, with crosslinker, foaming agent, and pigmentation adjusted for cell size, recovery, and end thickness

Downstream process integration

• Material mixed and compounded, then sheet-molded with added crosslinker and chemical blowing agents, followed by continuous oven foaming and surface skinning; post-processing includes precision die-cutting and edge finishing as required

Final product types

• High-resilience exercise mats and yoga blocks
• Interlocking floor tiles for gyms and playrooms
• Kickboards and floating devices for aquatic training
• Protective sports pads and helmet liners