Applications of Mitsui Chemicals Evatate E105 EVA in Industrial Manufacturing

Mitsui Chemicals Evatate E105 offers consistent quality, controlled vinyl acetate content, and precise melt index, supporting advanced performance requirements in specialized industrial segments. Below, we detail core downstream application scenarios where this high-grade EVA supports established processing and compliance demands.

1. Hot Melt Adhesives for Packaging and Bookbinding

Evatate E105 serves as a fundamental polymer base in high-performance hot melt adhesive formulations, ensuring strong cohesion and flexibility for packaging, paper converting, and binding processes. Its controlled melt viscosities and low gels support clean running and edge definition at high machine speeds, critical in automatic folding carton assembly and bookblock gluing. Manufacturers depend on stable lot-to-lot properties for consistent adhesive quality during large-scale production and short cycle times.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives, indirect food contact)
• REACH (EC No. 1907/2006) Registration and SVHC compliance
• BfR XXXVI Paper and board for food packaging
• RoHS Directive 2011/65/EU (for use in printed products and packaging electronics)

Typical usage ratio

• Polymer blend constitutes 30–50% of adhesive formulation by weight
• Ratio depends on required open time, flexibility, and adhesion properties for specific substrates
• Adjusted in line formulation to control viscosity and bond strength

Downstream process integration

• Premixed with tackifiers and waxes in bulk melt tanks
• Feeds directly into extrusion or slot-die application heads
• Parameter settings optimize for temperature stability and filament formation during lamination or binding

Final product types

• Corrugated and folding carton packaging adhesives
• Book spine glues for offset and digital print runs
• Bag and envelope sealing adhesives
• Case and carton closing adhesives for automated packing lines

2. Wire and Cable Compounds

Evatate E105 is widely adopted in low-voltage and communication cable insulation and sheathing compounds, primarily due to its electrical insulating properties, process security, and compatibility with flame-retardant systems. Cable compound manufacturers rely on uniform melt flow and easy incorporation with fillers and stabilizers for achieving core and jacket layers that withstand char extrusion, shrinkage, and aging under outdoor and indoor environments.

Industry compliance standards

• UL 1581 (Reference standard for electrical wires, cables, and flexible cords)
• IEC 60502 (Power cables with extruded insulation and their accessories)
• RoHS Directive 2011/65/EU—lead and phthalate restrictions
• EN 50363-1/3 (EVA-based insulation and sheathing compounds)

Typical usage ratio

• 10–40% in compound, depending on mechanical and flame retardance requirements
• Lower ratio for simple insulation; higher for jacketing or when combined with halogen-free additives
• Adjusted based on final cable specifications and conductor gauge

Downstream process integration

• Melt-compounded with inorganic fillers, stabilizers, and flame retardants in twin-screw extruders
• Direct feeding to cross-head extrusion dies around conductors
• Monitored for surface smoothness, dielectric integrity, and dimensional stability in final cable assembly

Final product types

• Low-voltage building wire insulation
• Communication and data transmission cable jackets
• Power cord outer sheaths
• Specialty flexible cords and appliance cables

3. Solar Panel Encapsulation Films

Leading photovoltaic module producers select Evatate E105 as a key raw material for encapsulation layers, ensuring adhesion, UV stability, and weathering resistance over a panel’s 25+ year field life. Manufacturers require tight control over vinyl acetate levels for encapsulant formulations that deliver optimal optical transmittance and moisture barrier properties, crucial for both crystalline silicon and thin-film module designs.

Industry compliance standards

• IEC 61215 (Crystalline silicon PV modules—design qualification and type approval)
• UL 1703/UL 61730 for module safety
• TUV Rheinland 2PfG 1169/08.07—PV module materials
• RoHS 2011/65/EU compliance

Typical usage ratio

• Encapsulant film base: 60–80% EVA (by weight), blended with crosslinkers and UV absorbers
• Blending ratio tuned for cure speed and light transmission targets
• Adjusted to balance module lamination and interfacial adhesion requirements

Downstream process integration

• Compounds processed through cast or blown film extrusion lines, with in-line crosslinking
• Laminated above and below solar cells during module assembly
• Curing under heat and vacuum ensures full encapsulation and void-free structure

Final product types

• PVA film rolls for encapsulation of crystalline silicon solar cells
• Complete laminated photovoltaic modules
• Flexible solar panel encapsulation sheets
• Modules for both rooftop and utility-scale solar farms

4. Footwear Injection and Compression Molding

Evatate E105 acts as a fundamental raw polymer in manufacturing midsoles, outsoles, and insole pads for casual, sports, and safety footwear. Shoe component producers depend on the resin’s defined hardness, elasticity, and process flow for precise shaping in injection or compression molds. Consistent quality ensures batch-to-batch reproducibility in density, rebound, and abrasion tolerance, meeting both consumer comfort and industrial durability targets across footwear categories.

Industry compliance standards

• EN ISO 20345:2022/A1:2023 (Safety footwear)
• REACH SVHC substance restrictions for consumer goods
• GB/T 15107-2013—Chinese national standard for EVA foam products
• PROP 65 compliance (for US exports)

Typical usage ratio

• Base polymer: 50–85% by weight in EVA foaming blends for footwear soles
• Lower ratio with more fillers, higher for unmixed foams targeting lightweight sports soles
• Foaming agent, crosslinkers, and pigment levels adjusted for application

Downstream process integration

• Dry-blended with foaming agents, crosslinkers, and pigments
• Mixed into pre-compound or direct fed to injection/compression machines
• Crosslinked under controlled heat and pressure to obtain foam expansion and specific cell morphology

Final product types

• Sport shoe midsoles and outsoles
• Work and safety boot soles
• Casual sandal and slipper soles
• Formed insole pads and comfort inserts

5. Masterbatch Carrier Resin

Color masterbatch and additive concentrate producers use Evatate E105 as an efficient carrier for pigments, UV stabilizers, and flame retardants that later disperse in downstream EVA-based conversion processes. Its low gel content, moderate polarity, and consistent melting properties ensure high pigment loading without agglomeration, vital for color fidelity and property consistency in cable, film, and extrusion profile markets.

Industry compliance standards

• FDA 21 CFR 178.3297 (Color additives for polymers, where applicable)
• EN/ISO 9001:2015–certified quality management for production lines
• GMP for food packaging colorants (if used in indirect food contact items)
• REACH SVHC declaration (carrier resin and masterbatch)

Typical usage ratio

• Carrier resin: 40–65% of masterbatch by total weight
• Adjusted for pigment/additive type and targeted let-down ratios in final application
• Loading levels depend on end-use and required dispersion characteristics

Downstream process integration

• Melt-mixed with pigments or performance additives in high-shear twin-screw extruder
• Pelletized as masterbatch for subsequent let-down in user’s process
• Directly incorporated into film, cable, or molded EVA production lines by downstream users

Final product types

• Color and additive masterbatches for EVA-based cables and films
• Antioxidant or flame retardant concentrates
• Masterbatch carriers for crosslinkable EVA processing
• Pigmented EVA foams and profiles

6. Film Extrusion for Agricultural and Industrial Films

Producers of specialty blown and cast films for greenhouse covers, mulch, stretch wrap, and construction barrier sheets leverage the controlled melt flow and transparency properties of Evatate E105. Industrial film-makers require high uniformity for thickness and width at high output rates, combined with anti-block and slip additive compatibility, to meet diverse property profiles in agricultural as well as technical protection films.

Industry compliance standards

• ISO 527/ISO 1184 (Mechanical and physical property testing of polymer films)
• REACH Regulation (EC No. 1907/2006) for chemical safety
• EN 13655:2002 (Plastic films for agricultural use)
• ASTM D882—Tensile properties of plastic sheeting

Typical usage ratio

• Base polymer ranges from 50–95% in film blends
• Ratio shifts based on light transmission, strength, and flexibility demands
• Adjusted during coextrusion to control layer structures and thickness profile

Downstream process integration

• Blended with other polymers and additive packages in pre-extrusion mixers
• Melted in extruder and blown or cast into continuous film through dies
• Continuous monitoring for gel level, haze, and tear resistance during winding and slitting

Final product types

• Greenhouse roof and sidewall films
• Mulch films for horticulture and farming
• Construction vapor barrier sheets
• Industrial stretch wrap and palletizing films