Applications of Jiangsu Sailboat V2827 EVA in Industrial Manufacturing

Jiangsu Sailboat V2827 EVA, a high-performance ethylene-vinyl acetate copolymer, serves a variety of core downstream manufacturing sectors. Our factory partners rely on precise formulation and process control to ensure product quality and regulatory compliance across specialized applications. Below are key industrial uses validated by actual customer manufacturing experience.

1. Photovoltaic Encapsulant Film Manufacturing

Leading module manufacturers use V2827 in the production of photovoltaic encapsulant films. The material undergoes reactive extrusion with crosslinking agents, ensuring high optical transmittance and durability. Encapsulant film lines require strict gel content and cross-linking rate control to match thin-film and crystalline silicon PV module reliability requirements.

Industry compliance standards

• IEC 61215 & IEC 61730 (PV module encapsulant requirements)
• UL 1703 (Standard for Flat-Plate Photovoltaic Modules)
• RoHS Directive (2011/65/EU)
• REACH Regulation (EC 1907/2006)

Typical usage ratio

• 60–75% of total film formulation, with balance comprising crosslinking (0.6–1.0% organic peroxide), stabilizers, and adhesion promoters. Operators adjust ratio based on required film thickness and modulus.

Downstream process integration

• Resin pellets added at film extrusion hopper
• Blended with co-agents and anti-aging additives via co-rotating twin-screw extrusion
• Film calendaring followed by in-line lamination onto solar cells
• Thermal curing for crosslinking during module assembly

Final product types

• Photovoltaic EVA encapsulant sheets (rolls or cut sheets)
• Crystalline silicon solar modules
• Thin-film solar panels
• BIPV (Building Integrated Photovoltaics) glass laminates

2. Hot-Melt Adhesive Formulations

V2827 grade supports stable flow and adhesion properties in pressure-sensitive and bookbinding hot-melt adhesive manufacturing. Plant teams blend into adhesive lines requiring precise viscosity and open time for automated or manual assembly processes, achieving consistent bond and flexibility performance.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for Food Packaging)
• ISO 9001:2015 (Quality Management Systems for adhesive production)
• EN 923:2005+A1:2008 (Adhesives – Terms and definitions)

Typical usage ratio

• 30–40% of total adhesive formulation, blended with tackifiers (20–40%), waxes (10–20%), and plasticizers (variable). Ratio adjusted to achieve balance between bond strength and open time according to substrate material and process speed.

Downstream process integration

• Pellet dosing into mixing/extrusion kettles
• Continuous or batch melt mixing with adhesive modifiers
• Inline filtering and granulating before drum or pellet packaging
• Application onto substrates by slot die, nozzle, or spray system on converted production lines

Final product types

• Hot-melt glue sticks and slugs
• Carton and case sealing adhesives for packaging lines
• Pressure-sensitive adhesives for labels and tapes
• Perfect binding products for book manufacturing

3. Cable and Wire Insulation Compounding

This EVA copolymer delivers enhanced flexibility and electrical insulation when compounded for low-voltage cable jacketing. Strict particle dispersion and melt viscosity controls help converters meet mechanical strength and flame retardance for in-building and automotive wiring insulation.

Industry compliance standards

• IEC 60502-1 (Power cables with extruded insulation and their accessories)
• UL 1581 (Reference Standard for Electrical Wires)
• RoHS Directive (2011/65/EU)
• ISO 14001 (Environmental Management for cable production)

Typical usage ratio

• 45–65% of compound by weight, with fillers (25–40%), flame retardants (10–15%), and lubricants (2–5%) as required for finished product class. Formulation adjusted per insulating grade and dielectric test results.

Downstream process integration

• Dry blending in high-intensity mixers
• Co-melt compounding via twin-screw extruders
• Inline pelletizing, then direct extrusion onto conductor cable
• Water bath cooling before surface inspection and spooling

Final product types

• Low-voltage cable jackets (household, industrial)
• Automotive cable insulation
• Flexible wire sheathing
• Outdoor communication cable cover

4. Foam Injection Molding for Footwear and Sporting Goods

EVA grade V2827 is selected for manufacturing lightweight and durable foam midsoles, insoles, and protective pads. On footwear lines, operators control expansion ratio and density by foaming agent dosage and mold temperature, ensuring finished foam meets resilience and compression set benchmarks for end-user comfort and longevity.

Industry compliance standards

• ISO 20344:2021 (Personal protective equipment – Footwear test methods)
• GB/T 15107-2013 (EVA foam material for footwear)
• REACH Regulation (Annex XVII restricted substances)

Typical usage ratio

• 65–80% of mix, with foaming agents (2–5%), crosslinkers (0.2–0.5%), pigment masterbatches (variable), and processing aid as needed to target cell size and density per CNC mold design.

Downstream process integration

• Loading of pellets and chemical foaming agents into automatic batch mixers
• Pre-compounding and continuous sheet or block extrusion
• High-pressure foam injection into aluminum molds
• Curing and mechanical de-molding, followed by post-trimming of parts

Final product types

• Sports shoe midsoles and outsoles
• Compression molded insole foams
• Protective pads for sports helmets and gear
• Lightweight foam blocks for DIY and craft industries

5. Film Production for Agricultural Greenhouse Coverings

V2827 supports extrusion of transparent multi-layer films used as greenhouse coverings. Material blends on co-extrusion lines require precise additive dosing to balance light transmittance, UV stability, and mechanical properties. Final film products deliver season-long durability for professional greenhouse operators.

Industry compliance standards

• EN 13206:2021 (Plastic films for agricultural cover)
• REACH Regulation (EC 1907/2006)
• GB 4455-2006 (Plastic films for horticulture use)
• ISO 9001:2015 (Film production QMS)

Typical usage ratio

• 25–35% EVA, blended with LDPE/LLDPE (65–75%) and UV stabilizers as specified for film grade and thickness. Usage ratio adjusted per transparency and tear-strength specifications.

Downstream process integration

• Gravimetric dosing of pellets for co-extrusion
• Melt blending and filtration through fine mesh screen packs
• Blown film extrusion using dual or tri-layer die heads
• Reel slitting and surface treatment before packaging

Final product types

• Greenhouse tunnel films
• Crop protection mulch films
• Thermal repair sheets for agricultural structures
• Anti-drip barrier films for commercial horticulture