Applications of Levima FL00628 EVA in Industrial Manufacturing

Levima FL00628 EVA is a high-performance ethylene-vinyl acetate copolymer engineered for downstream industrial processing. As the manufacturer, we supply this grade to sectors demanding precise formulation control and stringent compliance. Below are key industrial application fields, each with specific integration requirements, compliance guidelines, formulation ratios, and finished product outputs.

1. Hot Melt Adhesives for Packaging

The packaging industry deploys FL00628 EVA as a core resin for hot melt adhesive production, targeting high-speed carton sealing, box forming, and label lamination. Our polymer supports batch-to-batch consistency required by automatic lines and heat-sensitive packaging media. Downstream compounders blend our material with tackifiers, waxes, and stabilizers to optimize setting time and heat resistance. Industrial clients specify melt index and vinyl acetate content based on application machinery and substrate type.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for food packaging)
• EU Framework Regulation (EC) No 1935/2004
• REACH Regulation (EC) No 1907/2006
• GB 9685 (China Food Contact Additive Standard)

Typical usage ratio

• 30-60% in adhesive base, varied by bonding strength, viscosity, and set time targets
• Formulators adjust within this range for paper, plastic, or foil substrates

Downstream process integration

• Added to internal mixers with resins and tackifiers at 120–160°C
• Transferred to extrusion or drum-filling units for granule or block formation
• Hot melt compound then loaded into automated packaging lines

Final product types

• Carton and case-sealing adhesives
• Bookbinding glues
• Label adhesives for glass, PET, and HDPE bottles
• Heat-seal coatings for flexible packaging

2. Wire and Cable Insulation Compounds

Cable processing plants use this EVA grade for thermoplastic insulation and sheathing, primarily targeting low-voltage power and signal wires. Our material achieves the necessary dielectric strength and flexibility for insulation blends, meeting strict mechanical and aging requirements. Compounders blend this resin with fillers, flame retardants, and antioxidants. The adjustment of the vinyl acetate content allows enhanced performance in abrasion resistance and elongation under repeated bending and temperature change cycles.

Industry compliance standards

• IEC 60502-1 (Power cables with extruded insulation)
• UL 1581 (Reference Standard for Electrical Wires, Cables, and Flexible Cords)
• RoHS Directive 2011/65/EU
• GB/T 2951 (China Cable & Wire Testing)

Typical usage ratio

• 40-65% in cable compound blend by weight
• Variations depend on flame retardant loading and mechanical specification

Downstream process integration

• Continuous blending with silane crosslinking agents and stabilizers in co-rotating extruders
• Compounds pelletized, then melted in wire-coating extrusion lines at 120-200°C
• Finished insulation extruded directly onto copper or aluminum conductors

Final product types

• Low-voltage power cable insulation (up to 1kV)
• Signal and control cable jacketing
• Flexible appliance wiring
• Automotive low-voltage harnesses

3. Solar Module Encapsulant Sheets

Photovoltaic (PV) laminate manufacturers employ this EVA for solar cell encapsulation films. Our polymer provides strong adhesion, transparency, and UV stability, which are vital for module performance under outdoor conditions. Downstream processors compound FL00628 EVA with UV absorbers, crosslinkers, and curing agents. They form ultra-flat sheets in precision extrusion lines to achieve bubble-free lamination, supporting automated module assembly and long-term module reliability.

Industry compliance standards

• IEC 61215 (PV module performance testing)
• UL 1703 (Flat-plate Photovoltaic Modules)
• RoHS 2011/65/EU restriction on hazardous substances
• TÜV Rheinland Certification

Typical usage ratio

• 100% as encapsulant sheet base
• Additive loadings (UV absorbers/crosslinkers) at 2-8% total

Downstream process integration

• Compounded in twin-screw extruders with stabilizers at 110–150°C
• Sheet extruded through calendar rolls to exact thickness (typically 0.4–0.6 mm)
• Sheets cut and stacked for lamination between glass and cells during module assembly

Final product types

• Photovoltaic module encapsulant film (EVA layers)
• Thermal crosslinked backsheet bonding layers
• Flexible solar panel encapsulation
• Building-integrated PV laminates

4. Foamed Footwear and Sports Sole Compounding

Footwear and sporting goods manufacturers specify FL00628 EVA for injection-molded or compression-molded foam midsoles and outsoles. The high vinyl acetate content increases softness and elasticity, while tight molecular weight distribution ensures uniform cell structure. Compounders modify the base with blowing agents, crosslinkers, colorants, and stabilizers. Processers demand controlled expansion and recovery properties for high-wear end products across athletic, casual, and safety footwear lines.

Industry compliance standards

• EN ISO 20345 (Personal Protective Footwear)
• ISO 9001:2015 (Quality Management in Footwear Manufacturing)
• SATRA Footwear Laboratory Standards
• REACH Regulation (EC) No 1907/2006

Typical usage ratio

• 60-100% by polymer base in foaming compound
• Low-end (60-75%) for firmer soles, higher for soft and lightweight applications

Downstream process integration

• Mixing with foaming agents and additives in heated kneaders or banbury mixers
• Sheet extrusion or pelletizing prior to injection or compression mold filling
• Expansion, crosslinking, and shaping during thermal molding stages

Final product types

• Performance running shoe midsoles
• Protective work boot soles
• Children’s shoe outsoles
• Sports and beach sandals

5. Film Production for Agricultural and Industrial Uses

Producers of multilayer films for greenhouse covering, silage, and industrial packaging use FL00628 EVA to achieve precise cling, flexibility, and low-temperature toughness. The copolymer's balance of melt flow and tackiness enables reliable blown and cast film processing, even at reduced thickness. Its partial crystallinity supports tight dimensional control and sealing performance in variable climates. Processors blend this EVA grade with LDPE, LLDPE, and additives for target properties in high-output film lines.

Industry compliance standards

• EN 13206 (Plastic films for agriculture)
• GB/T 24786 (Polyethylene Greenhouse Film Standard)
• EU Regulation No 10/2011 (Plastics materials for food contact)
• ISO 9001 (Quality Management for Film Production)

Typical usage ratio

• 5-25% in co-extrusion with LDPE/LLDPE in film blends
• Adjusted based on required cling, flexibility, anti-drip, and transparency

Downstream process integration

• Dry blended with polyethylenes and slip/anti-fog agents in hopper
• Melt compounded in high-speed extruder at 140–180°C
• Film blown or cast to thicknesses from 20–200 microns for end-use

Final product types

• Greenhouse and tunnel films
• Silage wrap and agricultural stretch film
• Industrial pallet wrap and shrink films
• Flexible food-grade packaging film

6. Waterproofing Membrane Compounding

Building and construction material compounders use this EVA resin in modified bitumen and thermoplastic waterproofing membranes. FL00628 stabilizes low-temperature flexibility and bond strength in self-adhesive rolls and liquid-applied systems. Producers demand tight control of flow properties for homogeneous dispersion during compounding, enabling robust adhesion to concrete, asphalt, and flexible substrates, especially under cyclic weather exposure.

Industry compliance standards

• EN 13969 (Flexible sheets for waterproofing—Bitumen sheets)
• ASTM D1970 (Self-adhering polymer modified bituminous sheet materials)
• GB 18243-2008 (China Waterproof Membrane Standard)
• ISO 14001 (Environmental management—applicable to membrane manufacturing)

Typical usage ratio

• 10-25% as polymer modifier in bitumen-based membrane blends
• Varies with desired elongation, cold flexibility, and tensile strength specifications

Downstream process integration

• Fed to high-shear mixers with bitumen at 150–180°C
• Compounded with mineral fillers and tackifiers for roll sheet formation
• Extruded or coated onto fiberglass or polyester release liners

Final product types

• Self-adhesive waterproofing membrane rolls
• Hot-melt applied waterproofing sheets
• Liquid waterproofing formulations for foundations and roofs
• Chemical-resistant flooring membranes