Applications of Formosa Plastics TAISOX 7360M EVA in Industrial Manufacturing

Formosa Plastics TAISOX 7360M EVA is an ethylene-vinyl acetate copolymer engineered for industrial users who require consistent melt flow, copolymer uniformity, and high-impact performance across a range of technical applications. As an original manufacturer, we provide raw materials with tightly controlled formulation properties, enabling downstream partners to meet both regulatory and customer-driven quality benchmarks in high-volume production environments.

1. Photovoltaic Encapsulant Film Production

This material is a reference polymer for producing encapsulant film used in solar module lamination lines. Its high vinyl acetate content and melt index enable uniform crosslinking, resulting in optical clarity and elasticity for cell encapsulation. Downstream processors blend the copolymer with stabilizers and crosslinking agents, then extrude it into sheets that undergo lamination with photovoltaic cells under vacuum and heat in fully automated module assembly equipment.

Industry compliance standards

• IEC 61215: International standard for crystalline silicon terrestrial photovoltaic modules
• UL 1703: Safety standard for flat-plate photovoltaic modules and panels
• RoHS Directive 2011/65/EU: EU restriction of hazardous substances
• REACH Regulation (EC) No 1907/2006: European chemical registration and safety documentation

Typical usage ratio

• Base polymer content at 70–85% of total film formulation, adjusted according to additive and crosslinker loading; process modifications based on desired gel content and cure rate

Downstream process integration

• Melt compounding with crosslinkers and UV stabilizers, sheet extrusion, calendaring, lamination to solar cells under vacuum-thermal cycling, and post-cure thermal set

Final product types

• Photovoltaic encapsulant films used in crystalline silicon and thin-film module assembly, including terrestrial and building-integrated solar panels

2. Hot Melt Adhesive (HMA) Formulation

This copolymer serves as the backbone resin in pressure-sensitive hot melt adhesive formulations, including tapes, labels, woodworking adhesives, and packaging. EVA’s flexibility and compatibility with tackifiers and waxes allow precise balancing of open time, adhesion, and setting speed. Producers melt-blend the polymer with functional additives in industrial batch mixers, then convert the homogeneous compound into solid pellets or blocks for downstream application using heated dispensing systems.

Industry compliance standards

• FDA 21 CFR 175.105: U.S. food packaging indirect food additive regulations (for applications with food contact)
• ISO 9001:2015: Quality management system auditing in adhesive manufacturing
• ASTM D1876: Standard test method for peel resistance of adhesives
• EN 923: European adhesives terminology and test method standards

Typical usage ratio

• Resin content at 30–55% of finished adhesive formulation; ratio determined by balancing viscosity, bonding strength, and compatibility with chosen plasticizers and waxes for end-use application

Downstream process integration

• Melt blending of EVA copolymer with tackifiers, plasticizers, and antioxidants in Z-blade mixers, pelletization or block casting, and supply to application lines in solid or pelletized form for hot melt coating and bonding operations

Final product types

• Pressure-sensitive adhesive tapes, hot melt glue sticks, packaging and carton sealing adhesives, woodworking edge-banding adhesives, and label stock adhesives

3. Cable Compounding for Wire and Power Cables

EVA copolymer enhances flame retardant properties and insulation flexibility in cable jacketing and primary insulation compounds for medium voltage and communication cables. Compounders batch-blend the resin with flame retardants such as ATH, process oils, and color masterbatches, then use twin-screw extrusion to achieve uniform dispersion, critical for meeting spark test and jacket integrity requirements in cable manufacturing lines.

Industry compliance standards

• IEC 60502: Power cables with extruded insulation and their accessories for rated voltages
• EN 50290-2-22: European standard for cable polymeric compounds
• UL 1581: Reference for electrical wires, cables, and flexible cords
• RoHS Directive 2011/65/EU and Halogen-Free requirements as specified by end-user

Typical usage ratio

• Resin base at 25–45% by weight in flame retardant compounds; ratio varies according to required flame resistance, flexibility, and processing speed

Downstream process integration

• Thermoplastic compounding with ATH and synergist fillers in high-intensity mixers, followed by twin-screw extrusion; granulate is directly used in cable extrusion lines for jacketing and insulation layers

Final product types

• Power cable jackets (including medium and low voltage), data and telecommunications cable sheathing, and flame-retardant control cable insulation

4. Footwear Foam Injection Molding

This copolymer is widely implemented for manufacturing foamed midsoles and outsole components for athletic, safety, and leisure footwear. Downstream processors blend the resin with blowing agents, cross-linkers, and colorants, and feed the compound into high-pressure injection foaming equipment. The resulting microcellular foam delivers targeted resilience, compression set, and cushioning for large-scale industrial footwear production.

Industry compliance standards

• ISO 20344: Personal protective equipment – test methods for footwear
• REACH Regulation (EC) No 1907/2006: Chemical safety and registration for footwear polymers
• GB/T 15107: Chinese national standard for molded shoe soles
• California Proposition 65: Restricted substances in consumer products sold in California

Typical usage ratio

• Polymer content at 60–95% of total compound; the ratio varies by density target, degree of crosslinking, and type of blowing agent employed for sport or protective footwear products

Downstream process integration

• Melt blending with chemical blowing agents and cross-linking agents, pre-foaming, high-pressure injection into steel molds, and in-line crosslink set under heat for foam structural stability

Final product types

• Athletic shoe midsoles, casual shoe outsoles, industrial safety boot soles, and lightweight foam sandals

5. Flexible Packaging Film and Bag Manufacturing

This grade is an industrial staple for formulating multilayer coextruded packaging films that provide cold sealability, tear resistance, and puncture protection for perishable foods and medical packaging. Film producers coextrude the resin on high-speed blown or cast film lines after compounding with anti-block agents, slip additives, and optical brighteners. Strict QC ensures that films meet migration and sealing performance targets.

Industry compliance standards

• FDA 21 CFR 177.1350: U.S. regulations for ethylene-vinyl acetate copolymer food contact films
• EU Regulation (EU) No 10/2011: Plastic materials and articles intended to come into contact with food
• GMP Regulation (EC) No 2023/2006: Good manufacturing practice for food contact materials
• ISO 22000: Food safety management systems (for plants producing food packaging)

Typical usage ratio

• EVA loading at 5–30% of multilayer film; ratio is fine-tuned to the sealing temperature window, clarity, and mechanical property targets for each application

Downstream process integration

• Pellet blending with PE or other co-polymers, melt compounding with functional additives, blown or cast film coextrusion, and post-production corona or flame surface treatment

Final product types

• Cold-sealable biscuit packaging films, shrink films, medical device pouch liners, and hygiene product overwrap bags