Applications of Mitsui Chemicals Evaflex EV310 EVA in Industrial Manufacturing

Mitsui Chemicals Evaflex EV310 EVA serves as a critical raw material in multiple industrial sectors requiring precise mechanical, thermal, and optical properties. As the manufacturer, we support downstream partners with detailed compliance data, tailored compounding guidance, and integration techniques for high-performance manufacturing.

1. Photovoltaic Module Encapsulation

Leading solar module makers incorporate our material for cell encapsulation to achieve stable transmittance, controlled cross-linking, and reliable moisture resistance. The uniform melt index and controlled vinyl acetate content fit automated lamination and batch QC needs for crystalline silicon PV lines. Processing requires monitoring the thermal cure of the film, precise neutralization of catalysts, and stringent outgassing control to avoid delamination in field conditions.

Industry compliance standards

• IEC 61215 (Crystalline Silicon Terrestrial PV Modules)
• UL 1703 (Standard for Flat-Plate Photovoltaic Modules and Panels)
• REACH (European Chemicals Regulation EC 1907/2006)
• RoHS (Restriction of Hazardous Substances, EU Directive 2011/65/EU)

Typical usage ratio

• 65-80% of total encapsulant film weight, depending on vinyl acetate content and optical clarity requirements
• Adjustment based on cell type and environmental test protocols

Downstream process integration

• Fed into film extrusion with optimized antioxidant and crosslinker package
• Laminated over solar cells in vacuum lamination equipment at 140-150°C
• Cured in-line to targeted gel content monitored by QC labs
• Slit and sheeted for integration onto module backsheet and glass

Final product types

• Crystalline silicon PV panels
• Bifacial solar modules
• Flexible PV sheets for building-integrated photovoltaics

2. Hot Melt Adhesives for Hygiene and Packaging

Adhesive formulators rely on consistent polymer properties to control open time, wetting, and bond strength in hygiene disposables and packaging tapes. We provide guidance on compounding with tackifiers, waxes, and antioxidants to balance flexibility and heat sealing performance. Precision feeding into heated mixing vessels and batch testing for viscosity and set time form key steps in maximizing application reliability on high-speed lines.

Industry compliance standards

• 21 CFR 175.105 (Adhesives, US FDA food contact regulation)
• GB 9685 (China National Food Safety Standard for Food Contact Materials and Articles)
• ISO 9001:2015 (Quality Management Systems)

Typical usage ratio

• 25-45% of hot melt adhesive formulation by total weight
• Adjusted according to substrate compatibility, line speed, and adhesive set characteristics

Downstream process integration

• Dosed into jacketed mixers or extruders with plasticizers and resins
• Blended with stabilizers and colorants
• Pumped directly to slot die coating or bead application heads
• Quality-checked for color, viscosity, and bond strength

Final product types

• Disposable diaper fastening tapes
• Sanitary napkin adhesive backings
• Case, carton, and bag sealing hot melt glues

3. Wire and Cable Sheathing Compounds

Compounders supplying electrical and telecommunication cable makers use our EVA to reach required flexibility, puncture resistance, and flame retardancy. We collaborate on precise compounding with halogen-free flame retardants, process stabilizers, and UV absorbers. Compounds must meet detailed electrical and physical property tests per application, with extrusion and calibration by downstream cable lines closely monitored for gel and surface defects.

Industry compliance standards

• UL 62/83 (Wires, Cables and Flexible Cords)
• IEC 60332-1 (Flame propagation tests on finished cables)
• RoHS (Restriction of Hazardous Substances, EU Directive 2011/65/EU)
• ISO 9001:2015 (Quality Management Systems)

Typical usage ratio

• 45-65% in sheathing or insulation compound, with balance from fillers, flame retardants, and processing aids
• Ratio tuned according to flexibility and oxygen index targets

Downstream process integration

• Compounded in twin-screw extruders at controlled screw profiles
• Masterbatched with colorants and additives
• Extruded onto copper or aluminum cores via crosshead dies
• Online monitoring for wall thickness, surface, and crosslink density

Final product types

• Low-smoke, halogen-free power cables
• Communication cable sheathing
• Flexible control wires for appliances

4. Footwear Injection and Molding Compounds

Sports and casual shoe manufacturers use customized EVA compounds to achieve shock absorption, weight balance, and color consistency. We provide technical guidance for direct injection processes and expanded bead molding, ensuring foam density, compression set, and abrasion parameters meet end-user standards. Plant engineers track foaming agents, mold pressures, and batch QC protocols to maintain steady quality batch-to-batch.

Industry compliance standards

• ISO 20345/20346 (Safety Footwear Specifications)
• EN ISO 9001:2015 (Quality Management Systems)
• REACH Regulation (EC 1907/2006)

Typical usage ratio

• 55-85% in molded midsole or outsole compounds
• Adjusted with blowing agents, crosslinkers, and color masterbatches according to required hardness and rebound properties

Downstream process integration

• Metered into direct injection molding machines or batch foaming extruders
• Blended with additives in pre-mix hoppers
• Injection parameters set for density and cell structure control
• Molded and post-cured before surface finishing and QC release

Final product types

• Sports shoe midsoles
• Safety shoe outsoles
• Children’s and casual sandal soles

5. Film for Agricultural Greenhouse and Mulching

Producers of agricultural films use our polymer grades for transparency, mechanical strength, and UV stability in greenhouse covers and mulching sheets. Accurate dosing into blown film lines with UV absorbers and slip agents supports consistent film thickness and weather resistance. Field trials verify resistance to cracking, loss of transparency, and shrinkage under prolonged sunlight exposure, ensuring crops benefit from stable microclimates.

Industry compliance standards

• ISO 18604 (Plastic packaging and environmental requirements for recycling)
• ISO 4892-2 (Plastics – Methods of exposure to laboratory light sources)
• REACH Regulation (EC 1907/2006)

Typical usage ratio

• 20-45% in coextruded greenhouse or mulch film, higher ratios for extreme climate zones where flexibility and strength are critical

Downstream process integration

• Fed with LDPE/LLDPE and functional masterbatches in blown film extrusion
• Drawn and cooled at precisely controlled bubble ratios
• Surface treated for anti-fog and slip
• Sheeted, wound, and cut to field length formats

Final product types

• Clear multi-season greenhouse tunnel films
• Colored and black mulching sheets for horticulture and vegetable farming
• UV-resistant row covers