Applications of Jiangsu Sailboat UH2825 EVA in Industrial Manufacturing

Jiangsu Sailboat UH2825 EVA supports industrial manufacturers across several advanced sectors, providing proven value in formulation, process stability, and finished goods performance. We apply decades of polymerization and compounding experience, offering deep integration expertise for each specific downstream application.

1. Photovoltaic Encapsulant Films for Solar Modules

UH2825 EVA functions as the main encapsulant resin in the lamination layer of crystalline silicon and thin-film solar panels. Its controlled VA content and melt index ensure stable cross-linking reactions, clarity, and adhesion to both glass and cell surfaces under lamination process conditions. As producers, we supply grades matching the strict optical clarity and durability needs of global photovoltaic module plants, allowing direct integration into solar encapsulant film lines using in-line extrusion and cross-linking protocols designed for high throughput and consistency. Material traceability, formulation compatibility with UV stabilizers and curing agents, and batch-to-batch consistency support module makers seeking IEC, UL, and bankability certification.

Industry compliance standards

• IEC 61215 and IEC 61730 standards for PV modules
• UL 1703/UL 61730 PV safety certifications
• RoHS Directive (EU) 2011/65/EU
• REACH Regulation (EC) No 1907/2006

Typical usage ratio

• 70–90% by weight in base film compound; filler and crosslinker level customized per film extrusion and module stacking design

Downstream process integration

• Direct feeding into extruder or calender for film production
• Mixing with curing agent masterbatches and specific UV stabilizer packs upstream of cross-linking lamination
• Material requires strict moisture control before extrusion to prevent bubble formation

Final product types

• PVA encapsulant films for both front and rear solar panel lamination
• Photovoltaic glass-glass and glass-backsheet module assemblies

2. Hot Melt Adhesives for Footwear and Packaging

UH2825 EVA is selected for its balanced melt viscosity, flexibility, and compatibility with tackifiers in the manufacture of hot melt adhesive (HMA) formulations. Manufacturers formulate HMA sticks, granules, and films using this resin to achieve consistent open time, tack, and bonding performance in shoe assembly as well as carton and case sealing lines. Our material undergoes frequent QC testing for MI and gel content to guarantee predictable processing and end-use bond strength, supporting automated adhesive application lines in both footwear and consumer packaging factories. The product enables tailored blend ratios with waxes and resins depending on climate conditions, substrate types, and machinery parameters.

Industry compliance standards

• FDA 21 CFR 175.105 for adhesives in food packaging (where required)
• GB/T 2408-2008 (China) and ASTM D2863 flammability requirements for adhesives
• REACH Regulation (EU) No 1907/2006 for SVHC substances

Typical usage ratio

• 20–50% by weight of total hot melt adhesive compound, depending on tacticity, required softness, and application temperature

Downstream process integration

• Dosed into high-shear mixers or twin-screw extruders with tackifiers, antioxidants, and wax modifiers
• Pelletized/blended upstream of hot melt coating, molding, or film casting sections

Final product types

• Hot melt glue sticks and pellets for manual and automated glue guns
• Footwear assembly adhesives for shoe upper bonding
• Case and carton sealing adhesives for fast-moving consumer packaging

3. Cable and Wire Insulation Compounds

UH2825 EVA is deployed by insulation compounders and cable makers seeking flame retardant, low-smoke jacketing for power, control, signal, and communication cables. The polymer’s molecular structure delivers required flexibility, ESCR, and fire performance in filled cable grades used in low and medium voltage applications. With strict MI control and heavy metal analysis at our plant, we enable compounders to meet both international and domestic cable norms. The material’s easy blending behavior with ATH and other flame retardant synergists ensures efficient extrusion and post-curing, meeting the electrical and mechanical requirements of end users in telecoms and power grid sectors.

Industry compliance standards

• IEC 60502, IEC 60811 cable standards
• EN 50363-4-1 for thermoplastic insulation
• UL 1581 for flame retardant wire covering
• RoHS and REACH directives on hazardous substances

Typical usage ratio

• 30–60% by weight in the insulation compound, adjusted depending on filler loading (ATH, Mg(OH)₂) and cable thickness design

Downstream process integration

• Blended in Banbury or internal mixers with flame retardant fillers, antioxidants, process oil, and pigments
• Compound pelletized for direct feeding into cable extrusion lines for insulation or sheathing process

Final product types

• Low smoke zero halogen (LSZH) insulation and jacketing compounds
• Power cable, data cable, and communication wire coverings

4. Foamed Material for Sports Shoe Midsoles

Sporting goods OEMs and foam processors utilize UH2825 EVA in physical and chemical foaming processes to produce lightweight, resilient shoe midsoles. Its VA content and melt performance, verified through our in-plant lot control, promote uniform cell formation and high rebound while minimizing shrinkage and compression set. Processors combine the resin with cross-linkers, blowing agents, and color packages to meet performance and regulatory demands in global athletic footwear supply chains. The final foam matrix demonstrates energy return, flexibility, and pure color, supporting leading sports footwear brands.

Industry compliance standards

• EN ISO 20344:2021 for sports shoe testing
• GB 25038-2010 safety for rubber and plastics shoes (China)
• REACH for restricted substances in footwear
• CPSIA for children’s shoes in North America

Typical usage ratio

• 60–80% by mass of foamable compound, with balance as cross-linker, blowing agent, and pigment; tailored by target density and resilience

Downstream process integration

• Dosed into internal mixers then sheeted for batch foaming in molds under controlled pressure and temperature profiles
• Continuous foaming via extrusion possible in high-volume plants for sheet or block stock

Final product types

• Shoe midsoles for performance, casual, and kids’ footwear
• Sporting goods pads, yoga mat cores, and premium foam blocks

5. Film Blowing for Greenhouse and Agricultural Covers

UH2825 EVA is the preferred resin for greenhouse film producers demanding optical clarity, weather resistance, and low-temperature flexibility in agricultural films. With consistent VA content control at our facility, we supply resin grades tuned for single-layer and multi-layer co-extrusion with LDPE and LLDPE. Downstream, the film blowing process leverages the resin’s impact resistance, anti-fog capacity when compounded with specific additives, and UV stabilization. Final films protect crops and equipment in a range of climates, supporting horticulture productivity and farm infrastructure investment.

Industry compliance standards

• EN 13206 for plastic greenhouse covering materials
• GB/T 25486-2010 for agricultural PE film (China)
• REACH for environmental safety of polymer additives

Typical usage ratio

• 20–40% by weight in single or co-extrusion film blends, adjusted for transparency and mechanical strength as per climate zone and crop type

Downstream process integration

• Gravimetric dosing into film extruder hoppers alongside LDPE/LLDPE and functional additives (UV stabilizers, anti-fog agents)
• Used in mono-layer or ABA/ABC co-extrusion lines for films up to 250 micron thickness

Final product types

• Greenhouse roofing films
• Mulching covers and agricultural packaging films
• Anti-drip and anti-fog farm films