Applications of Hanwha TotalEnergies 1156 EVA in Industrial Manufacturing

As the direct producer of 1156 EVA copolymer, we support precision applications across high-technology and process-intensive sectors. Our technical teams partner closely with international manufacturers to ensure our EVA grade meets stringent processing and sustainability demands.

1. Solar Photovoltaic Encapsulants

In solar module manufacturing, 1156 EVA is a core ingredient for encapsulant sheet production. It offers the required melt flow, clarity, and crosslinking characteristics essential for reliable module life and power retention. Fabricators use this material in controlled extrusion and lamination steps, optimizing for clarity and adhesion between module layers to maximize UV and mechanical stability over 25+ years of outdoor exposure.

Industry compliance standards

• IEC 61215: Terrestrial photovoltaic (PV) module durability testing
• UL 1703: Standard for Flat-Plate Photovoltaic Modules and Panels
• REACH and RoHS substance restrictions for electrical/electronic equipment
• TÜV Rheinland, BSI EN 61730 safety qualification (for European markets)

Typical usage ratio

• 70%–95% EVA within encapsulant formulation, modified by processing additives (crosslinkers, anti-UV agents, adhesion promoters); ratio adjusted to control flow, adhesion, and PID resistance.

Downstream process integration

• Extrusion or calendaring into film
• Lamination between PV glass and cells under heat and vacuum
• Crosslinking reaction for encapsulant stability during curing step

Final product types

• Photovoltaic module encapsulant sheets
• Backsheet-laminated solar panels
• Double-glass modules for utility-scale solar
• Flexible and building-integrated PV panels

2. Hot Melt Adhesives

Hot melt adhesive formulators incorporate 1156 EVA for its controlled vinyl acetate content, which balances flexibility, peel strength, and quick setting properties. It facilitates efficient block, stick, or pellet hot melt production. Downstream integration includes precise temperature control in compounding and blending stations for packaging, woodworking, and nonwoven hygiene assembly lines, where rapid curing and clean application are critical.

Industry compliance standards

• FDA 21 CFR 175.105 indirect food contact (for packaging adhesives)
• ISO 9001:2015-certified adhesive manufacturing systems
• ASTM D4497: Standard Test Method for Hot Melt Adhesives
• REACH Annex XVII for restricted chemical content

Typical usage ratio

• 20%–40% EVA in hot melt adhesive base, with compatible resins, tackifiers, plasticizers; the proportion shifts to tune flexibility, viscosity, and thermal resistance for each end-use.

Downstream process integration

• Batch or continuous blending with tackifiers and waxes
• Extrusion or molding to final form (pellet, block, or stick)
• Direct hot melt application in automated production lines

Final product types

• Hot melt glues for case sealing and packaging
• Assembly adhesives for diapers, sanitary products
• Edgebanding adhesives in furniture and cabinet manufacturing
• Bookbinding and electronic device assembly adhesives

3. Wire and Cable Insulation Compounds

Electrical cable manufacturers compound 1156 EVA with flame retardants, stabilizers, and colorants to create insulation jackets for low- to medium-voltage applications. The material’s flexibility, dielectric strength, and process stability allow extrusion to consistently thick, pinhole-free coatings that meet demanding flame and mechanical performance criteria.

Industry compliance standards

• IEC 60502 and 60228 for power cable construction and conductor specifics
• UL 44/UL 1581 safety for thermoplastic insulated wires
• RoHS for hazardous substances limitation
• ISO 6722 for automotive cables

Typical usage ratio

• 35%–60% EVA in compound base, with proportions adjusted according to flame resistance, flexibility, and dielectric requirements; balance achieved with mineral fillers and synergists.

Downstream process integration

• High-shear compounding with FR synergists and antioxidants
• Twin-screw extrusion for cable jacketing and insulation
• Cooled drawing and crosslinking (if used in XLPE/EVA blends)

Final product types

• Power cable insulation and sheathing
• Automotive low-voltage wire coverings
• Data/telecom cable jacketing
• Building wiring with flame-retardant jackets

4. EVA Foam Manufacturing

For the footwear, sports, and floor mat industries, converters utilize 1156 EVA to achieve flexible, lightweight, and resilient foam sheets. It undergoes thoroughly controlled batch mixing with blowing agents and nucleators before high-temperature, high-pressure molding creates fine-cell foam structures suitable for shock-absorbing or cushioning pads. Product consistency requires attention to temperature, foaming pressure, and curing cycles.

Industry compliance standards

• REACH Annex XVII (phthalate and heavy metal restrictions)
• EN 71-3: Toy safety (for foam in sport toys and kids’ products)
• ISO 20344:2021 for safety, protective, and occupational footwear testing
• GB/T 19889: General requirements for EVA foam

Typical usage ratio

• 60%–90% EVA in foam formulations, adjusted against other copolymers, fillers, and plasticizers; loading depends on target hardness, density, and rebound.

Downstream process integration

• Blend with crosslinkers, blowing agents, and pigment
• Batch molding and steam foaming
• Post-cure slicing or die-cutting to finished dimension

Final product types

• Shoe midsoles, sandals, and slipper soles
• Floor mats and insulation panels
• Protective sports equipment padding
• Children’s puzzle mats and toy components

5. Film and Sheet Extrusion for Packaging

Film converters employ 1156 EVA in co-extrusion machinery to impart sealability, puncture resistance, and low-temperature flexibility to multilayer packaging films. This grade supports modification of PE-based films, strengthens blends for stretch and shrink uses, and enables clarity and process stability desired in food-grade and industrial films.

Industry compliance standards

• FDA 21 CFR 177.1350 for EVA copolymers in food contact films
• EU Regulation (EU) No. 10/2011 for plastics materials intended to contact food
• ISO 22000 food safety management (for food packaging operations)
• GMP guidelines for food packaging production

Typical usage ratio

• 5%–20% EVA in multilayer film blends, up to 80% in specialty sealant layers; ratio—adjusted for film thickness, sealing temperature, and mechanical specifications.

Downstream process integration

• Co-extrusion with PE, PP, or barrier resins
• Corona or flame surface treatment for adhesion
• Heat sealing and bag conversion stations

Final product types

• Food and medical packaging film
• Stretch and shrink film wraps
• Lamination sealant layers
• Packing pouches and liners

6. Masterbatch and Color Concentrate Production

Masterbatch manufacturers select 1156 EVA as a compatible carrier resin for specialty pigment and additive dispersions, especially when blending into other polar polymers or when a low-migration, flexible matrix is needed. Processers rely on the material’s stability under high shear and its resistance to volatility loss in injection and extrusion lines, ensuring high color strength and uniformity in the final product.

Industry compliance standards

• ISO 9001:2015 and ISO 14001:2015 (QMS and EMS for masterbatch plants)
• EU and FDA conformity for food contact masterbatch (when specified)
• EN 71-3 toxicity testing for toy applications
• ISO 19712-2 for plastic pigment performance

Typical usage ratio

• 40%–70% EVA as the carrier matrix in the masterbatch, with loading level determined by target viscosity and pigment/additive concentration; dispersant ratio tailored for end resin compatibility.

Downstream process integration

• Melt compounding of EVA with colorants and additives in twin-screw extruders
• Pelletizing and packaging for downstream blending
• Direct introduction to film, molding, or fiber production

Final product types

• Color and additive masterbatches for cable, film, and foam use
• UV stabilizer, flame retardant, and processing aid dispersions
• Slip and antiblock concentrate pellets
• Special effect color granules for sports and toy applications