Applications of Formosa Plastics TAISOX 7760H EVA in Industrial Manufacturing

As a primary producer, Formosa Plastics supplies TAISOX 7760H EVA resin for major downstream sectors that demand reliable mechanical strength, controlled flexibility, and consistent processability. Our technical support enables manufacturers to achieve precise formulation targets and comply with strict international standards.

1. Solar Photovoltaic Encapsulant Films

Solar module manufacturers use TAISOX 7760H EVA as the central matrix material during the encapsulation of photovoltaic (PV) cells. This resin delivers crucial optical transparency, crosslink density, and long-term durability against UV and humidity, supporting high module efficiency. Our customers employ advanced extrusion calendaring and lamination processes, requiring lot-to-lot consistency and controlled gel content to ensure safe, reliable solar power output.

Industry compliance standards

• IEC 61215: Terrestrial photovoltaic modules (design qualification and type approval)
• UL 1703 / UL 61730: Flat-plate photovoltaic modules and panels
• RoHS (EU Directive 2011/65/EU) hazardous substance limits
• REACH (Regulation EC No. 1907/2006) SVHC content restrictions

Typical usage ratio

• Encapsulant film formulation: 70–85% EVA by weight; with 1–3% crosslinking agents and 2–5% additives, adjusted for module thickness and UV resistance requirements.

Downstream process integration

• Direct feed into extruders for film casting or extrusion calendaring lines; followed by lamination with PV cell arrays, gelation via thermal crosslinking in module curing ovens.

Final product types

• PV module encapsulant films
• Backsheet adhesive layers
• Bifacial module encapsulation sheets
• Customized solar panel interlayer films

2. Hot Melt Adhesives for Packaging Industry

Formulators in the packaging sector employ TAISOX 7760H EVA for its controlled melt flow, tack, and cohesive strength when compounding hot melt adhesives (HMAs). Our resin enables stable viscosity during melt compounding, uniform adhesion properties, and compatibility with waxes and tackifiers, supporting paperboard, carton, and label assembly lines. Technical documentation and batch QC ensure full traceability for food and industrial packaging.

Industry compliance standards

• FDA CFR 21 Section 175.105: Adhesives for food packaging
• EN 71-3:2019 and EN 13432: Compostability and safety for contact materials
• ISO 9001:2015 certified QC systems in adhesive production
• BfR Recommendation XXI (Germany) for food packaging adhesives

Typical usage ratio

• Adhesive compounders use 25–45% EVA depending on required tack and open time; formulation balanced with resins, waxes, and antioxidant packages tailored to substrate and process speed.

Downstream process integration

• Resin melts in jacketed mixers before addition of modified rosin esters and oils; batch is filtered and pelletized or poured for downstream glue stick, pellet, or block production.

Final product types

• Glue sticks for carton sealing
• Pressure sensitive adhesive (PSA) tapes
• Case and carton sealing HMAs
• Label and bookbinding adhesives

3. Footwear Injection Molding Compounds

Injection molding lines for midsoles and outsoles depend on the high resilience and shock absorption properties delivered by TAISOX 7760H EVA. Customers use our resin as the primary matrix, providing precise cell structure control when compounded with blowing agents and fillers. This enables production lines to achieve targeted density, elasticity, and abrasion resistance, particularly in athletic and leisure footwear.

Industry compliance standards

• SATRA TM144: Footwear sole materials – resilience testing
• ISO 20344/20345: Personal protective equipment (safety footwear)
• REACH Annex XVII restricted substance lists
• GB/T 3293: Physical performance of footwear outsoles (China)

Typical usage ratio

• Foamed midsole formula: 60–80% EVA, with variable filler, crosslinking agent (DMA, DCP) up to 2%, and 5–15% blowing agent. Ratio adjusted for hardness and compression set targets.

Downstream process integration

• EVA pellets dry blended with pigments, filler, and foaming agents; fed by weight loaders into injection molding machines for automated forming, post-mold aging, and mechanical QC.

Final product types

• Athletic shoe midsoles
• Sandals and slippers
• Work boot outsoles
• Children’s molded footwear

4. Wire and Cable Insulation and Sheathing

Producers of power cables and communication wiring use TAISOX 7760H EVA as a primary insulation or sheathing compound base. Customers blend the resin with flame retardants and stabilizers to achieve high electrical insulation properties, flexibility, and halogen-free formulations required for safety-critical environments including building wiring, industrial machine cables, and automotive applications. Batch uniformity and consistent dielectric breakdown strength meet global compliance benchmarks.

Industry compliance standards

• IEC 60502: Power cables with extruded insulation and their accessories
• UL 62/UL 758: Flexible cords and appliance wiring material safety
• RoHS and Halogen-Free (EN 50620) cable system requirements
• GB/T 19666: Flame retardant and environmental standards for cables (China)

Typical usage ratio

• Cable insulation: 55–75% EVA in compound, with aluminum hydroxide and other fillers at 20–40%; formulation fine-tuned for insulation thickness and flame rating.

Downstream process integration

• Continuous feeding into twin-screw compounders; downstream direct extrusion onto copper or aluminum conductors, cooling, and reel take-up for electrical cable or wire harness line assembly.

Final product types

• Low voltage power cables
• Automotive harness insulation
• Halogen-free flame-retardant wires
• Signal and telecommunication wire jacketing

5. Film Blowing for Agricultural Greenhouse Covers

Global agricultural film manufacturers specify TAISOX 7760H EVA as a key impact modifier and clarity enhancer in greenhouse film blends. The resin ensures high puncture resistance, controlled light diffusion, and low-temperature flexibility critical for long-lasting crop protection. Operators blend EVA with linear low density polyethylene in multilayer extrusion blown film lines to achieve desired thickness, gloss, and UV-barrier characteristics in wide-width covers and mulch films.

Industry compliance standards

• EN 13206: Plastic films for agriculture and horticulture – blown films
• ISO 9001:2015 for certified film extrusion operations
• REACH Regulation Annex XVII compliance
• EU Directive 94/62/EC: Heavy metal limits in agricultural plastics

Typical usage ratio

• Greenhouse film blend: 8–25% EVA, with the remainder comprised of LDPE, UV stabilizers, and anti-fog masterbatches. Ratio adjusted depending on climate exposure, light transmission targets, and mechanical strength.

Downstream process integration

• Pre-blending with PE resins in gravimetric feeders; dosing into blown film extruders, followed by bubble stabilization and multi-stage winding for large format agricultural film rolls.

Final product types

• Transparent and diffused greenhouse films
• Black and white mulch films
• Thermal garden covers
• Silage and silage wrap sheeting

6. Foam Sheet for Sports and Recreational Goods

Sheet extruders and foam converters utilize TAISOX 7760H EVA to deliver lightweight, closed-cell foamed materials with flexible resilience for mats, protective padding, and flotation devices. Controlled expansion and cell size, along with tear resistance and non-toxicity, are critical to meet sports, leisure, and educational equipment regulations. Customers run high-throughput continuous processes, requiring consistent pellet flow and foaming response.

Industry compliance standards

• CPSIA (Consumer Product Safety Improvement Act) for children's equipment (USA)
• EN 71-3: Safety of toys (EU market)
• ASTM F963: Standard Consumer Safety Specification for Toy Safety
• REACH Regulation Annex XVII restrictions on phthalates

Typical usage ratio

• Foamed sports pad formula: 65–85% EVA, 5–10% blowing agent, remainder with color, process aids, and optional co-polymer blends. Ratio adapted by foam density and hardness class.

Downstream process integration

• Resin transported into continuous foam extruders with synchronous dosing of chemical blowing agents and colorants; upon expansion and cooling, extruded sheet is slit, laminated, or die-cut for downstream shaping.

Final product types

• Yoga mats and fitness pads
• Swimming kickboards and flotation aids
• Protective sports helmet lining
• Floor safety and sound insulation mats