Applications of Jiangsu Sailboat V6220R EVA in Industrial Manufacturing

Jiangsu Sailboat V6220R EVA serves as a critical copolymer in manufacturing across multiple downstream industries. Its precisely engineered vinyl acetate content and melt flow index deliver process consistency, tailored mechanical performance, and compliance for demanding industrial uses.

1. Photovoltaic Encapsulant Film Production

This material is integral to the production of EVA-based encapsulant films used in solar panel modules. Manufacturers rely on its consistent melt behavior to ensure void-free, uniform lamination. Exact formulation control is required for weatherproofing, UV resistance, and adhesion to silicon wafers while maintaining light transmission and electrical isolation. Production lines run continuous extrusion and roll-to-roll coating, where precise compatibility with curing agents and cross-linkers is a crucial QC point.

Industry compliance standards

• IEC 61215 (Crystalline silicon terrestrial photovoltaic modules)
• UL 1703 (Standard for flat-plate PV modules)
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
• REACH Regulation (EC) No. 1907/2006

Typical usage ratio

• 70%–100% EVA as the base resin, typically compounded with 1–5% cross-linking agents and 0.5–2% UV stabilizers and antioxidants

Downstream process integration

• Direct feed to encapsulant film extrusion lines and calendaring equipment; cross-linking occurs during module lamination under controlled temperature and pressure

Final product types

• Encapsulant films for mono- or polycrystalline photovoltaic panels
• Backsheet interlayer components

2. Hot Melt Adhesives

This EVA grade is frequently utilized in pressure-sensitive and hot melt adhesive production, where its defined viscosity and flexibility ensure reliable flow, bonding strength, and compatibility with waxes, tackifiers, and plasticizers. Adhesive manufacturers adjust the blend for packaging, bookbinding, and woodworking formulations. The material is melted and compounded prior to cooling and cutting, with downstream partners validating peel strength, open time, and thermal stability as per end-use.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for food packaging contact)
• EN 923:2005+A1:2008 (Adhesives—Terms and definitions)
• ISO 9001:2015 certified manufacturing

Typical usage ratio

• 20%–60% EVA, adjusted based on required tack, setting time, and compatibility with filler and tackifier levels tailored to application requirements

Downstream process integration

• Direct charging in batch mixers or continuous hot melt compounders; processed pellets or slabs shipped for downstream application by packaging and woodworking end-users

Final product types

• Hot melt adhesives for packaging and carton sealing
• Bookbinding glues and woodworking adhesives
• Pressure-sensitive adhesives for tapes and labels

3. Wire and Cable Insulation Compounds

Wire and cable compounders use this EVA as a primary insulation matrix, valued for its electrical insulation, flexibility, and resistance to stress cracking. The formulation usually includes fire retardants and processing aids to meet cable specification requirements. The mixing process employs co-kneaders or twin-screw extrusion, followed by pelletization and single screw extrusion onto copper or aluminum conductors.

Industry compliance standards

• IEC 60502 (Power cables with extruded insulation)
• UL 62 (Flexible cords and cables)
• RoHS Directive 2011/65/EU

Typical usage ratio

• 35%–80% EVA, depending on flame retardant and filler content; customized per specific flame class and mechanical performance targets

Downstream process integration

• Employed in compounding lines as a major polymer component; extruded and cross-linked as needed onto cable conductors, then cooled and spooled

Final product types

• Insulation sheathing for low voltage and signal cables
• Flexible wire coverings for industrial and consumer cables

4. Foam Shoe Soling and Footwear Components

EVA is widely utilized for injection and compression-molded foam midsoles and outsoles, delivering cushioning, durability, and lightweight features in athletic, safety, and leisure footwear. Compounders blend EVA with foaming agents, colorants, and reinforcement fillers. Strict formulation control ensures dimensional stability, closed-cell structure, and defined hardness, with QC labs assessing rebound resilience and abrasion resistance after molding and curing.

Industry compliance standards

• EN ISO 20345 (Safety footwear)
• GB/T 15107-2013 (Chinese national standard for EVA foam materials)
• Phthalate content per EN 14372 for children’s footwear

Typical usage ratio

• 50%–90% EVA; blend adjusted with 3%–10% blowing agent, pigment masterbatches, and up to 10% cross-linkers, according to final product density and performance

Downstream process integration

• Direct addition into extrusion or injection molding; foaming and curing follow in continuous or batch presses before die cutting and finishing

Final product types

• Athletic shoe midsoles and outsoles
• Safety boot cushioning
• Slippers and sandals

5. Flexible Packaging Films

Converters integrate this raw material in flexible packaging to impart sealability, puncture resistance, and mechanical toughness. EVA blends with linear low-density polyethylene or metallocene PE in co-extrusion or lamination processes. Ratio adjustment depends on requirements for heat sealing performance, clarity, and low-temperature flexibility, especially for frozen food or medical pouches. Inline QC tracks optical and mechanical parameters during high-speed film production.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymer use in food contact)
• EN 1186 (Materials and articles in contact with foodstuffs)
• BRCGS Global Standard for Packaging Materials

Typical usage ratio

• 10%–40% EVA in PE blends; varies based on sealing temperature requirements, transparency needs, and impact stress criteria

Downstream process integration

• Compounded prior to blown or cast film extrusion; multilayer film production through co-extrusion or adhesive lamination, then slitting and printing downstream

Final product types

• Food packaging films
• Medical device pouches and sachets
• Frozen goods wrapping films

6. Toy and Consumer Product Molding

Manufacturers utilize this resin for flexible, safe, and color-stable molded toys, requiring controlled softness, low extractables, and precise pigment dispersion. Formulations comply with international toy safety standards, and molding involves batch compounding followed by injection or blow molding. Strict final inspection ensures migration limits, bite safety, and defined tensile and compression properties for end-use suitability.

Industry compliance standards

• EN 71-3 (EU safety of toys—migration of certain elements)
• ASTM F963-17 (Standard consumer safety specification for toy safety)
• GB 6675 (China National Standard—Toy Safety)

Typical usage ratio

• 60%–95% EVA, modified with up to 10% plasticizer or colorant as per required hardness and visual properties

Downstream process integration

• Premixed with additives and extruded or injection-molded into finished forms; cooled, decorated, and packaged according to customer requirements

Final product types

• Soft play blocks and building bricks
• Water toys and educational kits
• Foamed puzzle mats