Applications of Jiangsu Sailboat UE3345 EVA in Industrial Manufacturing

Jiangsu Sailboat UE3345 EVA is a specialty-grade ethylene-vinyl acetate copolymer produced using advanced high-pressure processes for consistent quality and performance. The following segments outline established industrial applications, showing detailed compliance, formulation, processing integration, and commercial product outputs in real downstream sectors.

1. Solar Photovoltaic Encapsulant Films

Solar panel manufacturers utilize our EVA for producing encapsulant sheets to laminate photovoltaic cells, securing electrical insulation, moisture resistance, and strong light transmission. After compounding with crosslinking agents and stabilizers, calendaring or extrusion forms EVA films meeting precision thickness and optical requirements. The material maintains adhesion and long-term stability during panel lamination, essential for high-performance solar module fabrication.

Industry compliance standards

• IEC 61215: Terrestrial Photovoltaic (PV) Modules - Design Qualification and Type Approval
• UL 1703: Flat-Plate Photovoltaic Modules and Panels
• RoHS 2011/65/EU and REACH (EC) No 1907/2006
• ISO 9001 Factory Quality Management

Typical usage ratio

• 90–95 wt% in encapsulant formulation; crosslinker/UV stabilizer level adjusted (3–7%) based on end-use weathering requirements

Downstream process integration

• Direct compounding with additives for pelletizing or inline extrusion
• Sheet extrusion for encapsulant film production
• Continuous thermal lamination with PV cells and backsheet

Final product types

• Encapsulant films
• Photovoltaic modules for residential, commercial, and utility-scale solar power plants

2. Hot Melt Adhesives for Packaging and Bookbinding

Manufacturers rely on UE3345 EVA to formulate hot melt adhesive systems for industrial packaging lines and manual or automated bookbinding. High vinyl acetate content delivers balanced flexibility and cohesive strength, enabling precise melt viscosities. Adhesive formulators blend the copolymer with tackifiers, antioxidants, and plasticizers, yielding products compatible with high-speed lines, cardboard-to-cardboard, and spine glue applications.

Industry compliance standards

• FDA 21 CFR 175.105: Adhesives for food packaging (for indirect food contact applications)
• ISO 18916: Photographic Activity Test for Bookbinding
• ASTM D1876: Peel Resistance of Adhesives
• Technical Association of the Pulp and Paper Industry (TAPPI) T 813

Typical usage ratio

• 30–45 wt% EVA in core formulation; ratio adjusted per required tack and setting speed, with 40–60% tackifiers and additives

Downstream process integration

• Melting and blending in reactors with tackifiers, wax, and stabilizers
• Granule, pillow, or block molding for shipment
• On-site melting and application to substrates by roller or extrusion nozzles

Final product types

• Case and carton sealing adhesives
• Bookback glues for perfect binding
• Laminated packaging composites

3. Injection Molding of Foam Shoes and Sports Soles

Shoe and sports equipment factories process EVA pellets into foam midsoles, insoles, and comfort pads using injection or compression molding machines. Its specific melt flow index and vinyl acetate ratio facilitate controlled foaming, while additives impart resilience and wear resistance. Manufacturers calibrate formulation for hardness, elasticity, and density to support running shoes, safety boots, or sandals according to strict consumer and occupational standards.

Industry compliance standards

• EN ISO 20345: Safety Footwear
• GB/T 20991-2007: Personal Protective Equipment — Footwear
• ISO 9001/14001 Manufacturing Quality and Environmental Management
• REACH (EC) No 1907/2006 for restricted substances

Typical usage ratio

• 50–80 wt% EVA as the main polymer; foaming agent, crosslinkers, pigments, and fillers comprise 20–50% depending on target density and flexibility

Downstream process integration

• Direct feed to injection or compression molding lines after internal mixing
• Batch addition of nucleating and blowing agents for uniform foam structure
• Shaped molding, trimming, and post-cure for consistent mechanical properties

Final product types

• Running shoe midsoles
• Sandal footbeds
• Safety footwear and anti-fatigue mats

4. Wire and Cable Insulation Compounds

The electrical cable industry applies EVA in the formulation of insulation and sheathing compounds used for low and medium voltage applications. Crosslinking provides enhanced thermal resistance, flexibility, and consistent dielectric performance. Compounding with flame retardants and stabilizers produces granules ready for extrusion onto copper or aluminum conductors, meeting cable durability and fire retardancy requirements in multiple sectors.

Industry compliance standards

• IEC 60502-1: Power cables with extruded insulation and their accessories
• UL 1581: Reference Standard for Electrical Wires and Cables
• RoHS Directive 2011/65/EU
• IEC 60332-1: Flame Retardant Tests

Typical usage ratio

• 60–75 wt% EVA in cable insulation compound; inorganic flame retardants (25–40%) and stabilizers added as required per fire classification

Downstream process integration

• Internal batch mixing with ATH, pigments, and antioxidants
• Granulation and pelletizing for user-friendly feeding
• Thermoplastic or crosslinked extrusion onto metallic conductor cores

Final product types

• Low-voltage power cables
• Data and signal cables
• Flexible appliance wiring

5. Film Casting for Food Packaging Applications

Converters in the flexible packaging industry use this EVA grade to manufacture films for cold-seal wrap and frozen food pouches, delivering high elongation, low-temperature sealing, and clarity. The material blends with LDPE or LLDPE in multicasting or coextrusion lines, allowing fine-tuning of mechanical and barrier characteristics required for food-safe films, in compliance with food regulatory frameworks.

Industry compliance standards

• FDA 21 CFR 177.1350: Ethylene-vinyl acetate copolymer for direct food contact
• EU No 10/2011: Plastics materials for food contact
• China GB 9685: Standards for Additives in Food Contact Materials
• BRC Global Standard Packaging Materials (Hygiene and Traceability)

Typical usage ratio

• 10–30 wt% EVA blended with LDPE or LLDPE; the ratio depends on seal strength, film thickness, and flexibility requirements

Downstream process integration

• Dry blending with base resin and additives
• Film extrusion (blown or cast) for mono- or multilayer packaging
• Reel slitting and conversion to pouches or wraps

Final product types

• Frozen food packaging films
• Vacuum packaging sheets
• Snack and cereal pouches