Applications of Arkema Evatane 28-150 EVA in Industrial Manufacturing

Arkema Evatane 28-150 EVA is a specialty ethylene-vinyl acetate copolymer that serves as a critical modifier in modern industrial compound design. Its consistent rheology, high vinyl acetate content, and tailored molecular weight enable downstream industries to engineer reliable, high-performance materials across diverse processing environments. Below, we present key application sectors with specific details on compliance, formulation, and integration into manufacturing workflows.

1. Hot Melt Adhesives for Hygiene Products

In hygiene manufacturing, EVA with 28% vinyl acetate acts as the polymer backbone in hot melt adhesive systems, offering balanced adhesion, flexibility, and thermal stability. Workshops compound it for baby diaper construction, feminine care, and medical disposables where consistent bonding and skin contact safety are non-negotiable. The raw material supports low temperature application and contributes to odourless, non-staining formulations.

Industry compliance standards

• FDA 21 CFR 175.105 (Indirect Food Additives: Adhesives and Components of Coatings)
• ISO 10993-5, ISO 10993-10 (Biocompatibility for medical devices)
• OEKO-TEX Standard 100 (Textile safety, applicable to hygiene products)
• GMP guidelines for medical and hygiene disposables manufacturing

Typical usage ratio

• 25%–38% by total adhesive formulation weight, adjusted for required softening point and peel strength. Lower proportions for backsheet lamination, higher for core construction.

Downstream process integration

• Pre-melted in jacketed tanks and fed to high-precision slot or spray applicators; forms the adhesive matrix during substrate combination in high-speed hygiene production lines.

Final product types

• Baby diapers
• Surgical drapes
• Feminine sanitary pads
• Incontinence products

2. PVC Modification for Wire & Cable Compounds

Cable compounding utilizes EVA as a plasticizer and impact modifier with a distinct advantage in low-smoke, non-halogen cable jackets and insulation. Its molecular structure lowers glass transition temperature, improves flexibility, and enhances stress crack resistance. Compounders choose it for demanding environments where flame retardancy and extended service life matter (e.g., building wiring, automotive harnesses).

Industry compliance standards

• IEC 60502-1/2 (Power cable construction and testing)
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
• EN 50267-2-1 (Low Halogen Characteristics)
• UL 2556 (Wiring Material Testing)

Typical usage ratio

• 8%–16% by compound weight, depending on desired tensile elongation and flammability class; adjustment based on filler loading and insulation thickness.

Downstream process integration

• Dry-blended or melt-compounded in Banbury mixers or twin-screw extruders before pelletizing; pellets are then re-extruded during wire coating or sheathing stages.

Final product types

• Low-smoke, non-halogen cable jackets
• Flexible power cords
• Automotive wiring harnesses
• Underground signal and communication cables

3. Photovoltaic Encapsulant Sheet Manufacturing

EVA with high VA content is the base resin in encapsulant sheets for solar modules, chosen for its high transparency, elasticity, and resistance to UV-induced degradation. Sheet manufacturers crosslink it under lamination with glass, safeguarding photovoltaic cells from moisture and mechanical shock over decades of service. Formulation balances melt flow and gel content for controlled crosslinking and optical clarity.

Industry compliance standards

• IEC 61215 (Crystalline Silicon Terrestrial Photovoltaic Modules)
• UL 1703/UL 61730 (Safety for Flat-Plate Photovoltaic Modules and Panels)
• TÜV SÜD local PV material testing protocols
• ISO 4582 (Weathering Testing)

Typical usage ratio

• Base resin at up to 80% by sheet weight; tailored with 3%–7% crosslinking agent (e.g. peroxide) and additives for UV stabilization. Ratio optimized for encapsulant thickness and line speed.

Downstream process integration

• Resin melt-extruded into sheets via calendering or cast extrusion, combined with peroxide before lamination. Post-lamination crosslinking occurs under tightly controlled heat and vacuum.

Final product types

• PV encapsulant sheets
• Solar cell modules (mono/polycrystalline)
• Building-integrated photovoltaics (BIPV)
• Flexible thin-film PV panels

4. Foamed Shoe Soles and Sport Outsoles

Footwear compounders use this EVA grade as a structural polymer in injection and compression-molded foamed soles for sports, leisure, and children’s shoes. Its fine cell structure, high elasticity, and resilience to repeated compression shape lightweight, shock-absorbing platforms, while formulation achieves precise density and flexibility as required by different brands and regional safety norms.

Industry compliance standards

• REACH Regulation (EC) No 1907/2006 (Chemical safety in footwear)
• EN ISO 20344:2021 (Test methods for personal protective footwear)
• CPSIA (US Consumer Product Safety for children’s goods)
• GB 30585-2014 (China National Safety Technical Code for Children’s Shoes)

Typical usage ratio

• 55%–85% by sole or sheet formula, with lower ratios for high loadings of blowing agent and compound modifiers; density, expansion, and hardness requirements determine final proportion.

Downstream process integration

• Compounded in internal mixers with blowing agent, pigment, and stabilizers; the compound is then foamed and shaped by injection or compression molding tooling as per sole geometry.

Final product types

• Sports shoe midsoles and outsoles
• Lightweight slippers and sandals
• Children’s foam shoes
• Anti-fatigue insoles

5. Flexible Packaging Sealant Layers

This EVA copolymer forms the sealant layer in coextruded multi-layer flexible packaging, where low sealing temperature and strong adhesion to polar and non-polar substrates provide reliable hermetic seals for food, pharmaceuticals, and consumer goods. Its purity profile aligns with demanding safety requirements, and processors appreciate its stable extrusion window that minimizes thermal degradation and gel formation during continuous film manufacture.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers for food contact)
• EU Regulation No 10/2011 (Plastics intended to contact food)
• GB9685-2016 (China Food Contact Materials Standard)
• BRCGS Packaging Materials Global Standard

Typical usage ratio

• 12%–28% in sealant layer blend; exact ratio varies with performance targets like opening force and heat seal initiation. Higher proportions in peelable lidding applications.

Downstream process integration

• Pellet-blended with LDPE or LLDPE and processed via blown film or cast film coextrusion; forms inner sealant or peelable layer in laminated flexible packaging structures.

Final product types

• Flexible food pouches
• Thermoforming lidding films
• Vacuum packaging bags
• Blister packaging for pharmaceuticals