Applications of Jiangsu Sailboat EY902 EVA in Industrial Manufacturing

Jiangsu Sailboat EY902 ethylene-vinyl acetate copolymer finds widespread adoption in specialized industrial sectors, driven by its performance in formulation consistency, process adaptability, and compliance with international technical standards. Below, we present detailed scenarios where downstream manufacturers rely on EY902 for demanding process and product requirements.

1. Solar Photovoltaic Encapsulation Films

Large-scale photovoltaic module manufacturers select EY902 EVA for its critical role in encapsulation film extrusion, where physical and optical parameters impact module reliability and efficiency. Consistent melt flow rate and impurity control are essential during extrusion and lamination, supporting high transparency, elasticity, and weather resistance required by global solar field installations.

Industry compliance standards

• IEC 61215 (Crystalline silicon PV modules – Design qualification and type approval)
• UL 1703 (Flat-Plate Photovoltaic Modules and Panels)
• RoHS Directive 2011/65/EU
• REACH Regulation (EC) No 1907/2006

Typical usage ratio

• 70–90% loading in film formulations, adjusted according to target gel content and optical transmittance; initiator and crosslinking additives account for the balance.

Downstream process integration

• Feeds directly into film extrusion or calendering, followed by lamination onto PV cells in vacuum laminators; crosslinking occurs in-line during lamination heating.

Final product types

• PET-backed encapsulant films for crystalline silicon and thin-film modules
• Bifacial module encapsulant sheets
• Backsheet-integrated EVA films

2. Hot Melt Adhesives for Packaging and Labeling

In the adhesive sector, downstream formulators rely on EY902’s controlled vinyl acetate content to achieve specific tack and flexibility benchmarks required for high-speed packaging and pressure-sensitive labeling lines. As the backbone polymer, EY902 enables adhesives with consistent open and setting times, supporting both automatic and manual application under varied humidity conditions.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for food packaging indirect contact)
• ASTM D1876 (Peel resistance of adhesives)
• GB/T 2792 (Adhesive tapes – Peel adhesion test)
• REACH Annex XVII – restriction of hazardous substances in adhesives

Typical usage ratio

• 30–40% by weight in hot melt formulations; exact dosage varies by tackifiers and plasticizer load to align with viscosity and bond strength specifications.

Downstream process integration

• Added in bulk-blending or internal mixer prior to extrusion pelletizing; final hot melt product granules melted and dispensed via slot or spray applicators onto substrates.

Final product types

• Case and carton sealing adhesives
• Pressure-sensitive labels and tapes
• Book-binding adhesives

3. Footwear Injection Molding Compounds

Midsole and outsole compounders in the footwear industry employ EY902 as a primary polymer matrix in foamed and solid formulations. It offers balance between flexibility, impact absorption, and color dispersion, enabling efficient cell nucleation in injection or compression molding cycles. Processors benefit from its adaptability to peroxide and physically blown systems, ensuring high output and repeatable material behavior.

Industry compliance standards

• EN ISO 20871 (Footwear – Test methods for outsoles)
• GB 9677-88 (Rubber soles for shoes)
• REACH SVHC Candidate List (for restricted substances in footwear materials)
• Corporate manufacturing standards for abrasion, resilience, and color migration

Typical usage ratio

• 55–80% by weight in masterbatch blends, adjusted with mineral fillers and foaming agents according to target density and compression properties.

Downstream process integration

• Pre-mixed with crosslinkers and fillers, then pelletized and fed into injection or compression molds; foamed articles cured via in-mold heating or oven post-processing.

Final product types

• Sports shoe midsoles
• Casual footwear outsoles
• Slippers and sandals

4. Wire and Cable Insulation Compounds

Producers of low-voltage cables select EY902 due to its insulation properties, flexibility in cold bending, and resistance to environmental stress cracking. The polymer’s melt consistency allows downstream compounders to control dielectric strength while tuning softness and flame resistance in compliance with international cable norms.

Industry compliance standards

• IEC 60811 (Electrical cables – Non-metallic material test methods)
• UL 1581 (Reference Standard for Electrical Wires, Cables, and Flexible Cords)
• RoHS II (Restriction of Hazardous Substances Directive)
• GB/T 2951 (China test methods for cable insulating materials)

Typical usage ratio

• 38–55% in insulation compound formulations; adjusted for flame retardant and plasticizer content to meet required performance grades.

Downstream process integration

• Mixed with antioxidants, flame retardants, and processing aids in a twin-screw extruder, then directly extruded onto copper or aluminum conductors as insulation sheath before cooling and winding.

Final product types

• Low-voltage power cables
• Flexible appliance cords
• Halogen-free insulation for electronics wires

5. Foam Sheet Production for Sports and Packaging

Sheet manufacturers count on EY902 to maintain fine cell structure and cushion integrity in physically foamed sheets, critical for shock absorption pads, yoga mats, and specialized packaging inserts. High purity and melt strength support stable extrusion and uniform cell expansion in both continuous and batch foaming lines, while its vinyl acetate content anchors colorability and compression set.

Industry compliance standards

• EN 71-3 (Safety of Toys – Migration of Certain Elements)
• REACH Regulation (EC) No 1907/2006
• GB 4806.7 (National standard for food contact materials – plastic materials and articles)
• Internal physical property benchmarks for tensile strength, compression set, and cell uniformity

Typical usage ratio

• 60–85% in foamed sheet blend; finalized based on blowing agent type and target sheet density from 0.06 to 0.25 g/cm³.

Downstream process integration

• Compounded with colorants, crosslinkers, and foaming agents in batch mixers; extruded as sheet and foamed in high-temperature ovens or inline expansion chambers; subsequent cutting and shaping according to application.

Final product types

• Yoga and exercise mats
• Sports protective pads
• Protective packaging sheets and impact absorbers

6. Modified Bitumen for Construction Waterproofing

Roofing and membrane sheet manufacturers integrate EY902 into bituminous compounds to boost flexibility, adhesion, and cold weather performance for waterproofing materials. The copolymer interacts with asphalt phases to improve crack resistance and processing temperature window, reducing risks of aging and promoting long service life in construction membranes.

Industry compliance standards

• EN 13707 (Reinforced bitumen sheets for roofing – Product specification and test methods)
• ASTM D5147 (Testing of polymer-modified bituminous membranes)
• GB 18242-2008 (Elastomer modified bitumen waterproof sheets)
• CE Marking for construction products (where required)

Typical usage ratio

• 12–18% by weight in SBS/EVA modified asphalt blends; tuned according to weathering resistance and flow property requirements.

Downstream process integration

• Pre-blended into molten asphalt before sheet calendering or coating onto carrier fabrics; finished rolls cooled, cut, and packed for building site use.

Final product types

• Waterproofing membrane sheets for roofs and foundations
• Bridge deck and tunnel waterproof liners
• Self-adhesive construction sealing tapes