Applications of Tosoh Nipoflex 13B53D EVA in Industrial Manufacturing

Tosoh Nipoflex 13B53D EVA is an established ethylene vinyl acetate copolymer grade recognized for its consistent performance in processing and product durability. As a direct manufacturer, we ensure the supply of this material for a range of industrial sectors where technical properties meet strict compliance and integration requirements. Below are core downstream applications that demonstrate the differentiated utility of our product, each specified by real-world standards, formulation principles, process steps, and verified end-use products.

1. Solar Photovoltaic Encapsulant Films

Solar module manufacturers rely on EVA encapsulant films to protect photovoltaic cells from moisture, ultraviolet light, and mechanical damage while maintaining high transmittance. Tosoh Nipoflex 13B53D EVA delivers clarity and process stability essential for high-yield automated lamination lines. Industrial users integrate this grade in film extrusion under conditions tailored for crosslinking, ensuring uniform layer thickness and adhesion required for international solar certification.

Industry compliance standards

• IEC 61215:2016 (Crystalline Photovoltaic Module Safety and Performance)
• UL 1703 (Standard for Flat-Plate Photovoltaic Modules and Panels)
• TÜV Rheinland 2 PfG 1169/10.2007 (Polymeric Encapsulating Materials for PV Modules)
• RoHS Directive 2011/65/EU

Typical usage ratio

• 95–100% of encapsulant layer; ratio adjusted based on film thickness (0.45–0.55 mm) and crosslinking agent content (1–3%)

Downstream process integration

• Dosing into film extrusion lines; calendared into sheets and laminated onto solar cell assemblies before thermal curing to induce crosslinking

Final product types

• Photovoltaic module encapsulant films
• Backsheets for solar panels
• Flexible solar cell composites

2. Hot Melt Adhesives for Packaging and Bookbinding

Packaging and bookbinding sectors utilize hot-melt adhesive formulations that require precise flow properties, flexibility at low temperatures, and clean melting. Our EVA grade integrates seamlessly as the base polymer in robust hot-melt glues, ensuring minimum char, low VOC emissions, and rapid setting, in compliance with global consumer goods safety directives and packaging standards.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for Food Packaging)
• REACH Regulation (EC) No 1907/2006
• ISO 18916:2007 (Adhesives for Bookbinding)
• EN 1230-2:2009 (Paper and Board in Contact with Foodstuffs – Odour and Taste Transfer Test)

Typical usage ratio

• 30–50% of adhesive formulation; adjusted for tackifying resin content, viscosity targets, and process temperatures (120–180°C)

Downstream process integration

• Blended in internal mixers or melt kettles with tackifiers, waxes, and plasticizers; applied via slot die, drum, or spray nozzle systems on automated packaging or bindery lines

Final product types

• Case/sealing and carton hot melt adhesives
• Spine glues for bookbinding
• Labels and envelope manufacturing adhesives

3. Footwear Soles – Injection Molding Compounds

Leading footwear manufacturing facilities formulate injection molding compounds by incorporating our EVA copolymer to achieve lightness, flexibility, and excellent shock absorption in outsoles and midsoles. Users benefit from the material's process consistency and foaming ability, supporting repeatable cell structure and resilience. EVA enters as the core polymer in customized blends for sport and casual footwear production, structured for compliance with occupational safety and product quality benchmarks.

Industry compliance standards

• OEKO-TEX Standard 100 (Textile and Footwear Materials)
• EN ISO 20345:2022 (Safety, Protective, Occupational Footwear)
• CNAS-CL01:2021 (Chinese National Footwear Testing Specifications)
• REACH Regulation (EC) No 1907/2006

Typical usage ratio

• 60–95% of compound formulation; ratio varies with desired foam density (0.18–0.35 g/cm³), hardness (Shore C 40–60), and masterbatch pigment addition

Downstream process integration

• Compounded with blowing agents, colorants, and stabilizers in kneader or internal mixer, then pelletized and fed into injection or compression molders

Final product types

• Sports shoe midsoles and outsoles
• Casual footwear foam soles
• Antistatic/ESD safety shoe soles

4. Wire & Cable Insulation Compounds

Wire and cable production sectors demand polymer insulation and sheath compounds capable of long-term aging resistance and dielectric stability. Manufacturers use Tosoh EVA as a primary component, balancing vinyl acetate content for flexibility and processability. Its application in granule blending and extrusion ensures insulation meets international safety, halogen-free, and fire rating requirements for both energy and data cables.

Industry compliance standards

• IEC 60502-1 (Power Cable for Rated Voltages)
• UL 1581 (Reference Standard for Electrical Wires, Cables, and Flexible Cords)
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
• EN 50290-2-26 (Halogen-Free Insulation for Cables)

Typical usage ratio

• 35–65% of cable insulation compound; modified for mechanical strength, dielectric performance, and flame retardant system compatibility

Downstream process integration

• Compounded with stabilizers and flame retardants in twin-screw extruders; pelletized, then extruded onto copper or aluminum cores via single-screw extrusion or co-extrusion head

Final product types

• Low-voltage PVC-free electrical cables
• Data cable insulation for communication infrastructure
• Automotive wire harness sheathing

5. Foam Sheet Production for Sports and Leisure

Producers of sports mats, exercise pads, and flotation devices depend on EVA-based foam sheets for high resilience, flexibility, and excellent cushioning. Our EVA grade enables uniform cell structure during high-pressure molding processes, critical for achieving consistent density and thickness as demanded by global sporting goods standards. The formulation and foaming process are fine-tuned for compatibility with closed cell expansion agents and color masterbatches.

Industry compliance standards

• EN 71-3:2019+A1:2021 (Safety of Toys: Migration of Certain Elements)
• REACH Regulation (EC) No 1907/2006
• ISO 846 (Evaluation of Action of Microorganisms on Plastics)
• US CPSIA Section 101 (Children’s Product Safety Improvement Act – Lead Content)

Typical usage ratio

• 80–98% of foam sheet formulas; value varies for target hardness, resilience and closed cell ratio, and functional additives

Downstream process integration

• Mixed with blowing agents, pigments, and UV blockers in internal mixer; pre-crosslinked, then foamed and pressed into sheets using steam molding or continuous expansion ovens

Final product types

• Yoga mat and gym floor foams
• Water sports flotation boards
• Camping mattresses and play mats

6. Flexible Film and Sheet Extrusion for Stationery and Office Supplies

The office and stationery goods sector processes EVA for flexible films and sheets used in products demanding transparency, flexibility, and heat sealability. Our copolymer grade effectively supports calendering and extrusion, ensuring film gauges remain consistent for lamination, cover manufacturing, and document protection. Manufacturers maintain compliance with global standards for non-toxic and phthalate-free materials.

Industry compliance standards

• EN 71-3:2019+A1:2021 (Migration of Certain Elements)
• REACH Regulation (EC) No 1907/2006
• ASTM D882 (Tensile Properties of Thin Plastic Sheeting)
• US CPSC Phthalate Restrictions (16 CFR Part 1307)

Typical usage ratio

• 40–80% in film/sheet blends; adjusted to balance flexibility, clarity, and sealing strength with modifiers and pigments

Downstream process integration

• Dry blended and metered into film/sheet extruders; extruded through flat die or blown film lines, then sheeted, rolled, and slit to size for downstream lamination or fabrication

Final product types

• Laminating pouch films for document protection
• Stationery covers and files
• Book jackets, binders, and report covers