Applications of Versalis Greenflex FL 45 EVA in Industrial Manufacturing

Versalis Greenflex FL 45 EVA is an ethylene-vinyl acetate copolymer widely adopted across industrial manufacturing sectors for its specific balance of flexibility, toughness, and processing performance. This section details compliant, technical use-cases in downstream industries where our EVA grade delivers quantifiable value and meets demanding production and regulatory requirements.

1. Footwear Midsole and Outsole Formulation

In the athletic and safety footwear sector, Greenflex FL 45 supports midsole and outsole compounding, delivering controlled cushioning, durability, and workability under both direct injection and compression molding. Manufacturers select this grade for its consistent cell structure, supporting efficient foaming and slip resistance. Strict migration and extractables limits apply in finished shoe parts, especially for children’s and professional safety lines.

Industry compliance standards

• REACH Annex XVII for restricted substances (Europe)
• EN ISO 20345/20344 for safety footwear specifications
• GB 30585 for children’s footwear safety (China)
• California Proposition 65 for hazardous chemical content (USA)

Typical usage ratio

• Processed at 30–65 wt% of total compound, tailored by hardness/shore A requirement (adjust with crosslinkers, blowing agents, and mineral fillers as per end-use type)

Downstream process integration

• Dosed directly during foam compounding and batch blending with pigments, process oils, and crosslinking agents before extrusion or injection molding

Final product types

• Athletic shoe midsoles
• Work and safety boot outsoles
• Cushioned insoles and slip-resistant pads
• Children’s casual footwear components

2. Hot Melt Adhesives for Packaging

In pressure-sensitive and hot melt adhesive systems for flexible packaging and labeling, our FL 45 resin enables specific tack, peel, and set time profiles. The vinyl acetate content offers compatibility with waxes and tackifiers, providing clean machinability at stable temperatures. These adhesives require traceable, food-contact compliant sourcing and low-migration formulation for use in secondary and tertiary packaging.

Industry compliance standards

• FDA 21 CFR 175.105 for indirect food contact adhesives (USA)
• Commission Regulation (EU) No 10/2011 for food packaging plastics (Europe)
• ISO 18604 for materials recyclability guidance
• Good Manufacturing Practice (GMP) Regulation (EC) No 2023/2006

Typical usage ratio

• 15–40 wt% as primary polymer in formulation; adjusted based on required open time and viscosity when blending with waxes, tackifiers, and stabilizers

Downstream process integration

• Introduced during bulk melt-blending and compounding, then drum-extruded or pelletized for slitting and roll-coating equipment

Final product types

• Case and carton sealing adhesives
• Self-adhesive labeling films
• Laminating adhesives for dry food packaging
• Paper and board converting glues

3. Wire and Cable Insulation Sheaths

Producers of low voltage and telecommunication cables utilize FL 45 for flexible, halogen-free sheath and insulation compounds. The polymer supports stable dielectric strength and mechanical integrity at extended service temperatures, critical for household, automotive, and industrial wire harnesses. Downstream operations demand stringent control of plasticizer migration, flame retardant homogeneity, and low-smoke emission under fire conditions.

Industry compliance standards

• UL 1581 Reference Standard for Electrical Wires and Cables (USA)
• IEC 60227/IEC 60332 for PVC-insulated cables and flame performance
• RoHS Directive 2011/65/EU for hazardous substances
• EN 50267 for halogen-acid gas measurement

Typical usage ratio

• Used at 25–55 wt% of primary compound, depending on flame retardant and filler loading; variation based on final cable flexibility and regulatory grade

Downstream process integration

• Pre-blended with fire retardants, plasticizers, and antioxidants, then pelletized and direct-fed into extrusion lines for cable jacketing or sheathing

Final product types

• Flexible power cable insulation
• Communication wire sheathing
• Automotive battery cable jackets
• Low-smoke halogen-free wire insulations

4. Film Extrusion for Greenhouse Covers

Specialty film manufacturers incorporate FL 45 for multi-layer agricultural films, optimizing transparency, elasticity, and puncture resistance required in greenhouse and tunnel applications. Strict regulations govern heavy metal residues, photostability, and thickness uniformity to ensure crop safety and durability throughout the growing cycle. Upstream pigment and UV stabilizer packages require compatibility testing during pilot scale-up.

Industry compliance standards

• Regulation (EU) No 10/2011 for plastics in contact with food
• ISO 18606 for greenhouse film biodegradability (when blended with compostable grades)
• EN 13206 for plastic film requirements in agriculture
• GB 4455-2006 for agricultural PE film systems (China)

Typical usage ratio

• 7–18 wt% in multilayer film, with loading adjusted for thickness control, mechanical strength, and transparency across PE or PO blends

Downstream process integration

• Dry-blended into masterbatch or direct dosed during blown film co-extrusion alongside UV additives, slip agents, and coloring compounds

Final product types

• Single-season and multi-season greenhouse films
• Thermal insulation tunnel covers
• Crop-protection mulching films (when used in blends)
• Pest-barrier films with selective light transmission

5. Foam Sheets for Sports and Leisure Goods

Producers of foam sheets for sports mats and protective padding prefer our copolymer for its low odor, uniform cell morphology, and clean crosslinking with peroxide or irradiation. Technical equipment mats, exercise flooring, and aquatic floatation boards require strict migration limits, resilience, and antiskid performance under repeated compression and wear. Downstream slitting and surface lamination demand stable density and recovery rate after foaming.

Industry compliance standards

• EN 12503 safety standards for sports mats (Europe)
• REACH SVHC list for raw material safety
• EN 71-3 for toy chemical migration (for children’s products)
• SATRA TM144:2011 for slip resistance

Typical usage ratio

• 55–95 wt% as main polymer in physical or chemical foaming processes; formula tunes flexibility, density, and recovery rate

Downstream process integration

• Batch incorporated with crosslinkers, blowing agents, and colorants, then sheet-extruded and foamed in continuous or batch ovens

Final product types

• Sports and yoga mats
• Martial arts tatami and crash mats
• Swimming kickboards and pool floats
• Camping sleeping pads

6. Solar Panel Encapsulant Sheets

Photovoltaic module makers use our EVA to formulate encapsulant sheets, providing stable adhesion, light transmission, and protection against delamination in field conditions. Encapsulants must meet strict optical, thermal aging, and PID-resistance criteria. Material selection influences module yield, panel stability, and defect rates. Process control covers mixing with crosslinkers and adhesion promoters, coupled with in-line gel content and crosslink density QC.

Industry compliance standards

• IEC 61215 for photovoltaic module performance
• UL 1703 for flat-plate PV safety (USA)
• IEC 61730 for PV module safety qualification
• TUV Rheinland module test protocols

Typical usage ratio

• 70–98 wt% in encapsulant formulas; adjusted by crosslinking density and film thickness per module design

Downstream process integration

• Mixed with peroxide and additives, cast into sheets or rolls, then vacuum laminated to cells during panel assembly with thermal crosslinking

Final product types

• Punch-cut PV encapsulant sheets
• Backsheet/encapsulant laminates
• Flexible thin-film PV substrates
• Frameless solar power modules