Applications of Versalis Greenflex MP 34 EVA in Industrial Manufacturing

Versalis Greenflex MP 34 EVA supports advanced process reliability and material performance across industries that demand specific melt flow, environmental compliance, and precise formulation. As a manufacturer, we work closely with industrial customers supplying packaging, construction, adhesives, footwear, and specialty films, ensuring our material matches regulatory and process requirements throughout the value chain. Below, we outline established application scenarios, focusing on compliance, usage ratios, manufacturing process steps, and end products.

1. Flexible Food Packaging Films

Our EVA copolymer enables food packaging producers to balance mechanical strength, heat sealability, and regulatory safety within multilayer film structures. Film extrusion companies incorporate MP 34 to improve puncture resistance and sealing integrity while maintaining food contact compliance for processed meats, dairy, snacks, and ready meals. Operators rely on this material to control film flexibility and optical parameters in high-speed blown or cast film lines where ingredient ratios must adapt to shelf-life requirements and package presentation.

Industry compliance standards

• EU Regulation (EU) No 10/2011 on plastic materials for food contact
• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers for food packaging)
• China GB9685-2016 Additive Standard for Food-Contact Materials
• EN ISO 22000 (Food Safety Management Systems) for film production processes

Typical usage ratio

• 10–22% of the polymer matrix in co-extrusion or 15–28% in mono-layer structures, adjusted for required seal strength and transparency

Downstream process integration

• Dosed via gravimetric or volumetric feeders at the compounding or direct film extrusion stage; blends with LDPE/LLDPE for multilayer film co-extrusion; potential pre-drying step to reduce moisture prior to processing

Final product types

• Vacuum pouches for processed meats
• Lidding films for dairy containers
• Snack, bakery and frozen food wraps
• Heat-sealable, transparent bags and laminates for ready meals

2. Hot Melt Adhesives (HMA)

EVA’s controlled vinyl acetate content facilitates tailored hot melt adhesive formulations for packaging, hygiene, woodworking, and textile lamination lines. Producers use MP 34 for its balanced melt viscosity and compatibility with waxes and tackifiers, achieving precise open time and bond strength in demanding environments. Consistency in melt flow ensures reliable application in automated slot-die, spray, and bead deposition during continuous or batch production cycles.

Industry compliance standards

• ISO 9001:2015 Quality Management for adhesive production plants
• FDA 21 CFR 175.105 (Adhesives for food packaging applications)
• ASTM D4498 (Standard Specification for EVA adhesives)
• ISO 22000 applicable for hygiene disposables adhesive manufacturers

Typical usage ratio

• 20–45% of total adhesive composition, adjusted for required open time, viscosity, and specific substrate adhesion

Downstream process integration

• Added directly into the jacketed hot-melt premix during compounding with resins, plasticizers, and tackifiers; compatibility adjustment done via pilot mixing prior to full-scale transfer to adhesive lines

Final product types

• Bookbinding glues
• Cigarette filter assembly adhesives
• Disposable hygiene product adhesives (diaper, sanitary napkins)
• Case, carton, and tray sealing adhesives for food packaging

3. Foamed Footwear Midsoles and Insoles

EVA’s elasticity, resilience, and consistent cell structure performance support mass-production of lightweight, cushioning foamed midsoles and insoles in the footwear sector. Footwear compounders introduce MP 34 in combination with blowing agents and crosslinkers, supporting both compression and injection molding processes. The precise melt flow properties support even foam formation and dimensional stability, while meeting requirements for consumer safety and industrial health regulations.

Industry compliance standards

• REACH Regulation (EC) No 1907/2006 for chemical safety in footwear components
• EN ISO 20344/20347 for personal protective footwear
• GB/T 15107 (China Footwear Physical Standards)
• Oeko-Tex Standard 100 for textile and polymer-based shoe components

Typical usage ratio

• 35–65% as the main polymer in insole and midsole formulations; specific ratio selected by adjusting crosslinker and foaming agent loading for target density and hardness

Downstream process integration

• Pre-mixed in intensive blenders with compounding additives; sheet or pellet extrusion prior to closed-mold compression or injection foaming; thermal crosslinking based on part thickness

Final product types

• Sports shoe midsoles
• Comfort insoles for everyday and medical shoes
• Slipper and sandal bases
• Antistatic/ESD footwear components

4. Solar Module Encapsulant Films

MP 34’s optical clarity and crosslinking ability under heat make it a core ingredient in photovoltaic (PV) encapsulant films. Solar OEMs require strict control of acetic acid migration, UV stability, and melt flow consistency to ensure performance and manufacturability. The EVA copolymer is formulated with UV absorbers and curing additives, processed into sheets and crosslinked on module lamination lines, where stability throughout 25+ year field exposure is essential.

Industry compliance standards

• IEC 61215: Terrestrial Photovoltaic Module Qualification
• UL 1703: Flat-Plate Photovoltaic Modules and Panels
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
• ISO 9001:2015 Certified solar module manufacturing

Typical usage ratio

• 100% in encapsulant film layer; with 0.5–1% crosslinking additives and up to 0.7% UV stabilizers by weight

Downstream process integration

• Compounders extrude pellets into film; solar manufacturers sheet and pre-cut films prior to module lay-up; crosslinking occurs during vacuum lamination at 140–155°C for 10–20 minutes

Final product types

• P-Type and N-Type crystalline silicon module encapsulant sheets
• Photovoltaic panel assembly films
• BIPV (Building Integrated PV) laminate layers
• Thin-film solar cell encapsulant films

5. Wire and Cable Insulation & Sheathing

The electrical industry selects MP 34 for its dielectric properties, processable viscosity, and stress crack resistance in low and medium voltage wire and cable insulation. The copolymer is compounded with antioxidant and plasticizer packages, securing extrusion uniformity for continuous cable production. Finished insulation must sustain flexibility across temperature variations while maintaining compliance with flame retardance and migration control for residential and industrial installations.

Industry compliance standards

• IEC 60228 (Conductors of Insulated Cables)
• UL 83 (Thermoplastic-Insulated Wires and Cables)
• RoHS Directive 2011/65/EU
• CSA C22.2 (Canadian Electrical Code: Cables and Wires)

Typical usage ratio

• 28–60% of insulation/sheath compound, modulated based on voltage grade and flexibility/hardness specification

Downstream process integration

• Mixed in internal mixers with flame retardants and stabilizers; direct feeding to high-speed extruders; applies in the insulation or outer sheath layer downstream from copper drawing lines

Final product types

• Household wire insulation
• Flexible appliance cables
• Low voltage power cable sheathing
• Automotive wiring harness outer jackets

6. Medical Device and Pharmaceutical Packaging Films

Producers of medical packaging implement MP 34 in lamination or co-extruded barrier film applications, prioritizing sterility, puncture resistance, and regulatory compliance for contact with pharmaceuticals. The material’s FDA and pharmacopoeial compatibility supports use in pouch, blister, and overwrap configurations for syringes, infusion bags, and single-dose drug products, where fail-safe heat-sealing and low extractables are critical.

Industry compliance standards

• USP Class VI plastic certification
• EU Pharmacopeia 3.1.3 Polyolefin Materials for Containers
• FDA 21 CFR 177.1345 (EVA Polymer for Medical Packaging)
• EN ISO 11607-1 (Packaging for Terminally Sterilized Medical Devices)

Typical usage ratio

• 10–30 % within laminate or co-extruded film; precise ratio selected for targeted barrier and seal performance by device type

Downstream process integration

• Pellet blending with PE or PP at the film extrusion line; subsequent lamination or direct contact with Tyvek/foil layers; post-extrusion sterilization by EtO or gamma irradiation

Final product types

• Pharmaceutical blister overwrap films
• IV infusion pouches and bags
• Sterile medical device pouches and trays
• Single-dose unit dose packaging