Applications of Jiangsu Sailboat V6220K EVA in Industrial Manufacturing

Jiangsu Sailboat V6220K EVA—an ethylene-vinyl acetate copolymer—has established a track record across multiple industrial verticals where defined technical requirements, rigorous compliance, and consistent performance are crucial throughout the downstream value chain. Below, we highlight verified application segments where the unique balance of vinyl acetate content, melt index, and mechanical behavior of V6220K meets specific process and formulation demands.

1. Photovoltaic Encapsulant Sheet Production for Solar Modules

The photovoltaic industry relies on EVA copolymers with strict thermal and optical properties for the lamination of solar panels. V6220K is integrated directly during melt extrusion and calendaring to achieve the module’s transparency, adhesion, and electrical insulation, contributing significantly to the module’s performance and field longevity under UV exposure.

Industry compliance standards

• IEC 61215 (Crystalline silicon terrestrial PV modules design qualification and type approval)
• TÜV Rheinland 2 PfG 1169/08.2007 (EVA certificate for encapsulant sheets)
• RoHS Directive (Restriction of Hazardous Substances)
• UL 94 V-0 (Flammability requirements for plastic materials in devices)

Typical usage ratio

• 60–70% of encapsulant layer blend by weight; cell adhesion and crosslinking rate may require minor content adjustment based on end-laminator’s line speed and module thickness.

Downstream process integration

• V6220K feeds into twin-screw extrusion and sheet casting processes; crosslinking accelerators and antioxidants may be compounded in-line. The finished EVA sheet is laminated around solar cells with glass using vacuum membrane lamination at 140–155°C.

Final product types

• Photovoltaic solar panel encapsulant sheets and films
• Transparent backsheet for crystalline silicon PV modules

2. Hot Melt Adhesives for Consumer Packaging

Producers of hot melt adhesives formulate with EVA grades like V6220K for cases and carton sealing, relying on their balance of low-temperature flexibility and adhesion to multiple substrates. Consistent melt flow and compatibility with tackifiers enable continuous packaging lines to operate at optimal speeds and with minimal downtime.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for food packaging)
• REACH Regulation (EC) No 1907/2006
• ASTM D 3236 (Standard test method for melt viscosity)
• ISO 9001:2015 (Quality management for adhesive manufacturing)

Typical usage ratio

• 20–40% in hot melt adhesive formulations; co-blended with resins, waxes, and tackifier to tune open time, set speed, and peel strength for target packaging systems.

Downstream process integration

• EVA pellets melt-blended in high-shear mixer with resins and waxes; the adhesive is then pelletized or drummed, later remelted and applied in-line at 120–180°C to carton or paperboard substrates.

Final product types

• Case and carton sealing adhesives
• Consumer packaging hot melt systems
• Bookbinding adhesives

3. Wire & Cable Insulation and Sheathing Compounds

Electric wire and cable producers incorporate V6220K for primary insulation and jacketing formulations, meeting demanding dielectric strength and mechanical flexibility criteria. This material is chosen for its stable flow, process cleanliness, and compatibility with flame retardant packages required for building and telecommunications cables.

Industry compliance standards

• IEC 60502-1 (Power cables with extruded insulation and their accessories for rated voltages)
• UL 1581 (Reference standard for electrical wires, cables, and flexible cords)
• RoHS Directive 2011/65/EU
• CE Marking (Conformity assessment for European markets)

Typical usage ratio

• 35–60% in cable compound, adjusted based on flame-retardant and filler system level; lower ratios used in co-polymer blends for specific mechanical or flame resistance targets.

Downstream process integration

• Compounded with stabilizers, flame retardants, and sometimes plasticizers using twin-screw extrusion. The finished compound is pelletized, then applied by extrusion coating onto copper or aluminum conductor wires.

Final product types

• Low-voltage and medium-voltage power cables
• Control and instrumentation cable insulation
• Telecommunications cable jackets

4. Foam Shoe Sole and Sports Equipment Manufacturing

Footwear and sporting goods manufacturers use V6220K in closed-cell injection and compression molding processes to deliver cushioning, weight reduction, and impact absorption—properties essential for comfort and durability in end products such as athletic shoes, mats, and sports pads.

Industry compliance standards

• EN ISO 20345:2022 (Safety footwear)
• GB/T 15107 (China National Standard for EVA Foamed Footwear Sole)
• REACH Regulation Annex XVII (Restricted substances in consumer goods)
• SATRA TM144 (Shoe soling materials—resistance to abrasion)

Typical usage ratio

• 60–85% in primary foam compound; reduced ratios where co-blended with fillers, colorants, and cross-linking agents. EVA content tuned for density and resilience performance.

Downstream process integration

• Dry blending and melt mixing with foaming agents and cross-linkers, then molded under pressure/heat in either batch compression or continuous injection presses to create lightweight, shock-absorbing foam parts.

Final product types

• Lightweight shoe soles (athletic, casual, kids’ footwear)
• Foamed midsoles and insole pads
• Protective sports pads (elbow, knee guards)

5. Flexible Film for Agricultural and Horticultural Covers

Agricultural film manufacturers incorporate V6220K to formulate greenhouse and mulching films, capitalizing on its impact strength, flexibility at low temperatures, and increased tear resistance while supporting controlled light and gas permeability for modern farming requirements.

Industry compliance standards

• EN 13206:2023 (European standard for agricultural plastic films)
• ISO 9001:2015 (Film production quality management)
• REACH Regulation (Plant-safe materials assessment)
• National Food Safety Standard GB 9685-2016 (China: Additives in food contact materials)

Typical usage ratio

• 10–30% in multi-layer film blends; ratio modified for target mechanical strength, optical clarity, and co-extrusion layer position.

Downstream process integration

• EVA pellets loaded to film-blowing or cast film lines. Material is melt extruded through slot or blown dies and wound to roll stock, with additives introduced for UV stability or anti-fog functionality.

Final product types

• Greenhouse films and covers
• Mulching and crop-protection films
• Drip irrigation pipe coatings

6. Masterbatch Carrier Resin in Pigment and Additive Concentrates

Masterbatch compounding operations select V6220K as a carrier for solid pigments and additives, favored for its superior dispersion capability and fast melting, supporting high-shear mixing environments and enabling uniform end-use coloration and additive effects in film, injection, and sheet molding applications.

Industry compliance standards

• ISO 9001:2015 (Masterbatch manufacturing quality systems)
• FDA 21 CFR 177.1350 (Resin accreditation for food contact masterbatch)
• EN 1888 (European plastics masterbatch requirements)
• REACH, SVHC declaration (Substance of very high concern screening)

Typical usage ratio

• 30–45% carrier by weight in typical color or additive masterbatches; may adjust down to 15% in high-migration-resistant systems, depending on pigment load and targeted polymer compatibility.

Downstream process integration

• Melt mixing in co-rotating twin-screw extruder, allowing pigments or functional additives to disperse thoroughly in the EVA matrix. Masterbatch pellets are then dosed by downstream plastics processors during final product manufacture.

Final product types

• Plastic color masterbatches
• Functional additive concentrates (anti-static, UV protective, slip)
• Compound modifier dispersions for EVA and PE films or injection moldings