Applications of Arkema Evatane 18-500 EVA in Industrial Manufacturing

Arkema Evatane 18-500 EVA is widely adopted by industrial producers for demanding formulation requirements. Its chemical structure and processing profile enable diverse downstream integrations where precise melt characteristics and compatibility drive process yields. Below, we present key application sectors with their technical and regulatory specifics.

1. Hot Melt Adhesives for Packaging and Bookbinding

Packagers and book finishers specify EVA copolymers with high vinyl acetate content and controlled melt index for balance of adhesion, flexibility, and thermal stability. In hot melt adhesive (HMA) production, formulators incorporate Evatane 18-500 to improve bond strength to difficult substrates, eliminate stringing, and maintain open time during high-speed applications. Typical processes include blending with tackifiers, waxes, and stabilizers in high-shear mixers, followed by extrusion into granules or direct drum-transport for inline adhesive feed systems. Precise dosing supports conformity to sector QC, especially for food-safe secondary packaging and layflat book spines.

Industry compliance standards

• FDA 21 CFR 175.105 (Indirect Food Additives: Adhesives)
• EU Regulation (EC) No 1935/2004 (Materials in contact with food)
• ISO 22000 (Food Safety Management System in packaging)
• REACH Annex XVII (Restricted Substances)

Typical usage ratio

• 20%–35% by weight in standard hot melt adhesive matrix
• Ratio tuned based on adhesive strength, open time, and substrate type
• Higher loadings for hard-to-bond films and coated boards
• Lower end for simple carton closure and non-critical lamination

Downstream process integration

• Melt incorporated with tackifiers and plasticizers in bulk adhesive compounders
• Pelletized, extruded, or directly transferred to hot melt tanks
• Inbound QA based on melt viscosity and VA content specification
• Physical blending adjustments based on thermal stability and packaging throughput

Final product types

• Food contact packaging adhesives (case, carton, bottle labeling)
• High-speed bookbinding adhesives (spine glues, side glues)
• Envelope and bag assembly adhesives
• Laminate bonding for coated papers and films

2. Wire and Cable Insulation Compounds

EVA copolymers function as primary polymer components in halogen-free, flexible insulation and sheathing compounds for low-voltage wire and cable. Processors choose Evatane 18-500 for balance between melt flow, dielectric performance, and elongation at break. Compounding involves melt-blending EVA with flame retardants such as ATH (aluminum trihydrate), crosslinking agents, plasticizers, and antioxidants. Resin content is adjusted per cable design, voltage rating, and flame/smoke test protocols. Strict traceability and in-line monitoring support conformance to global cable regulations.

Industry compliance standards

• IEC 60502-1 (Power cables with extruded insulation)
• EN 50363-4-1 (Insulating compounds for cables – EVA sheath)
• RoHS 2011/65/EU (Restriction of Hazardous Substances)
• UL 1581 (Electrical wires, cables, and flexible cords)

Typical usage ratio

• 25%–35% of compound formulation in insulation sheaths
• Adjusted based on flame retardant loading and mechanical flexibility
• Higher ratios for flexible sheaths and automotive cables
• Lower for rigid utility wiring

Downstream process integration

• High-shear melt compounding with fillers and FR additives
• Extrusion through cable insulation lines with tandem crosslinking if required
• Granule or pellet feeding into continuous or batch extruders
• Finished compound tested for dielectric and tensile performance before wire coating

Final product types

• Low-voltage building wire insulation
• Flexible cords for domestic appliances
• Halogen-free automotive cable jackets
• Communication and data cable sheathing

3. Polyethylene Film Modification for Agricultural and Horticultural Films

Producers of specialty agricultural films add Evatane 18-500 to LLDPE or LDPE resin blends to increase toughness, puncture resistance, and welding performance. The copolymer’s high VA content aids clarity and flexibility critical for greenhouse covers, mulch films, and shrink/stretch wraps used in large-scale farming. Formulation is guided by weathering resistance targets and soil contact regulations. Blends are compounded via twin-screw extrusion, with masterbatch and QC adjustments to adapt to film thickness profiles and machinery speed.

Industry compliance standards

• EU Regulation (EU) 2019/1009 (Fertilising products regulation including film mulch safety)
• EN 13206 (Plastic films for agricultural use)
• ISO 9001-based internal QMS for film extrusion
• USDA BioPreferred for compostable or bio-based variants

Typical usage ratio

• 5%–15% by weight in polyethylene blends
• Ratio tuned to target puncture strength and elongation
• Higher loading for durable greenhouse covers
• Lower ratio for disposable mulch and tunnel films

Downstream process integration

• Dry blending with PE resins prior to melt extrusion
• Dispersion as part of custom masterbatches for process stability
• Introduction directly into blown and cast film lines
• Post-extrusion checks for elongation and haze

Final product types

• Greenhouse covering films
• Plastic mulch films for soil protection
• Silage and bale stretch wraps
• Agricultural tunnel and row covers

4. Photovoltaic (PV) Module Encapsulants

PV laminate manufacturers require EVA copolymers for thermal lamination between glass, silicon, and backsheet in solar modules. Evatane 18-500 provides crosslinkable functionality, necessary melt viscosity, and clarity for uniform, bubble-free encapsulation. In-line compounding with stabilizers and peroxides enables curing under exacting lamination cycles. Strict batch control underpins electrical insulation, UV resistance, and field aging demanded by module certification. Material flow rates are calibrated to glass thickness, cell configuration, and module line speed.

Industry compliance standards

• IEC 61215 (Crystalline silicon terrestrial PV modules – Design qualification and type approval)
• UL 1703 (Standard for flat-plate photovoltaic modules)
• TÜV Rheinland 2 PfG 1169 (Encapsulant films for PV modules)
• RoHS Directive 2011/65/EU

Typical usage ratio

• Up to 100% in direct encapsulant films
• Commonly used neat or with minimal additives
• Layer thickness 0.3–0.8 mm depending on cell design
• Adjustments for UV absorbers and crosslinking initiators

Downstream process integration

• Melt extrusion into sheet or film in roll stock
• Roll-to-sheet conversion on module encapsulation lines
• Thermal lamination between glass, PV cell strings, and backsheets at 140–155°C
• Continuous in-line crosslinking by peroxide activation

Final product types

• Packed silicon PV modules (rooftop, utility scale)
• BIPV laminated safety glass modules
• Thin film and flexible solar panels
• PV module repair/retrofit encapsulant kits

5. Foam Sheet and Gasket Materials

Industrial foam converters rely on Evatane 18-500 for uniform cell structure, compression set resistance, and enhanced processability during chemical and physical foam expansion. In foam sheet manufacture, EVA is compounded with blowing agents and crosslinkers, then extruded and expanded under heat and pressure. The vinyl acetate level influences softness and elasticity, critical for footwear midsoles, automotive gaskets, and vibration-dampening pads. Variations in cell size, density, and recovery allow targeting of multiple end-user specifications.

Industry compliance standards

• ISO 1856 (Flexible cellular polymeric materials – Determination of compression set)
• RoHS and REACH SVHC for automotive use
• CPSIA Section 101 for children’s foam products (US market)
• EN 71-3 for toy safety material migration

Typical usage ratio

• 30%–70% of total foam mass, modified by hardness and recovery targets
• Lower end for high-density gaskets, higher for soft underfoot applications
• Cell structure tuned via blowing agent and extrusion temperature
• Minor phase substitution possible for blended foams

Downstream process integration

• Melt compounding with crosslinkers and blowing agents
• Sheet extrusion followed by oven expansion and cooling
• Lamination or die-cutting of expanded foams to shape
• Integration into continuous automotive and sporting goods lines

Final product types

• Footwear midsoles and sockliners
• Noise and vibration reduction automotive gasket strips
• Protective packaging foam sheets
• Toy or sporting goods foam blocks