Applications of Braskem Evateno VA2019A EVA in Industrial Manufacturing

Braskem Evateno VA2019A EVA is widely integrated in advanced downstream manufacturing, serving as a key raw material in industries requiring specific polymer performance. The following sections outline how industrial partners incorporate this grade in real production settings, referencing regulatory standards, formulation practices, typical processes, and representative finished products.

1. Photovoltaic Encapsulant Film Production

This EVA resin grade plays a central role in the production of solar panel encapsulant films, where consistent crosslinking and high transparency preserve module durability and efficiency. Manufacturers blend the material with crosslinking agents and UV stabilizers to meet stringent requirements for clarity, adhesion, and long-term weather resistance, as dictated by global photovoltaic standards. Performance hinges on precise thermal lamination and curing conditions during film processing, directly influencing the final module yield.

Industry compliance standards

• IEC 61215 (Crystalline silicon terrestrial PV modules—design qualification and type approval)
• IEC 61730 (Photovoltaic module safety qualification)
• UL 1703 (Standard for Flat-Plate Photovoltaic Modules and Panels)
• ISO 9001-certified QC systems for encapsulant manufacturing

Typical usage ratio

• Formulators use 85–92% by weight in film compound, with dose modified for thickness, adherence goals, and integration of functional additives such as anti-aging agents or fire retardants.

Downstream process integration

• Sheet extrusion (flat die or calendaring), crosslinking during thermal lamination using autoclave or continuous lamination, and in-line cooling, followed by QA film testing before cell encapsulation assembly lines.

Final product types

• Solar PV encapsulation film reels
• Finished crystalline silicon photovoltaic modules
• Flexible solar panel assemblies

2. Hot Melt Adhesive Formulations

Industrial adhesive compounders leverage this ethylene-vinyl acetate copolymer’s flexibility and tack properties to design hot melt adhesives targeting fast application and strong bonding for packaging and assembly. The specific formulation depends on the end-use—ranging from case/bookbinding to nonwoven hygiene. The resin’s compatibility enables modifiers and tackifiers, while providing balanced open time and set time in modern automated lines.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives for food packaging)
• EN 923 (Adhesives—terms and definitions)
• ISO 9001/ISO 14001 for production process control
• REACH Regulation (Registration, Evaluation, Authorisation and Restriction of Chemicals) for safety

Typical usage ratio

• 30–65% by weight in adhesive base formulations, with the precise content tailored to substrate flexibility, heat resistance, bond strength, and viscosity requirements dictated by specific end-use machinery.

Downstream process integration

• High-shear internal mixing of pellets with waxes, tackifiers, and plasticizers; followed by continuous extrusion, pelletizing, then melting and direct application via heated applicators or slot coaters during customer conversion operations.

Final product types

• Pressure-sensitive hot melt adhesive sticks and pillows
• Packaging box and case sealants
• Bookbinding spines
• Nonwoven hygiene article adhesives (e.g., diaper and feminine care construction/positioning adhesives)

3. Flexible Packaging Film Manufacturing

Producers of multilayer flexible packaging incorporate this EVA for its low-temperature sealing and seal integrity on high-speed packing lines. Blown and cast film manufacturers modify blend ratios for optimal processability and weld strength, often pairing the polymer with LDPE, mLLDPE, and functional masterbatches. Strict migration and contact safety compliance is observed for all food-contact film applications.

Industry compliance standards

• EU Regulation (EU) No 10/2011 on plastic materials intended to come into contact with food
• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers for food packaging films)
• ISO 22000 (Food safety management for packaging plants)
• GMP Regulation (EC) No 2023/2006

Typical usage ratio

• 8–22% by weight within multilayer film recipes—variations depending on desired seal strength, puncture resistance, and co-extrusion layer thickness; the balance adjusted per product film gauge and packaging machinery.

Downstream process integration

• Direct dosing into film extruders for mono or multi-layer (coextruded) blown or cast film operations; resins are melt-blended and extruded through specific dies, followed by inline corona treatment and slitting for roll conversion.

Final product types

• Laminated food packaging films
• Frozen food and cheese pouches
• Flex pack lids for dairy and beverage
• Vacuum or barrier film packaging segments

4. Foamed Footwear and Injection-Molded Soles

Major footwear and sports equipment manufacturers select this grade for expanded EVA (EVA foam) processes owing to its cushioning, lightweight character, and resilience. It supports nitrosamine-free foaming and delivers controlled cell structure in both compression-molded and direct-injection lines. Blending ratios are defined to obtain target tensile, compression set, and tool flow, while adhering to regulatory safety requirements for consumer contact articles.

Industry compliance standards

• OEKO-TEX Standard 100 (materials for direct skin contact in footwear)
• REACH Annex XVII (restrictions on hazardous substances)
• ISO 20344/20345 (Safety footwear testing)
• China GB 30585 (Safety technical specification for children’s footwear)

Typical usage ratio

• 55–90% by weight in foam block or injection recipes; proportion altered for hardness, shrinkage, and rebound, with additive loading for pigment, processing aid, and crosslinker as per final use.

Downstream process integration

• Batch or continuous blending with blowing agent and additives; sheet extrusion followed by steam molding for shoe midsoles or direct injection to craft finished sole units; cooling, finishing, and batch QC follow molding.

Final product types

• Athletic shoe midsoles and outsoles
• Slipper and sandal foam soles
• Yoga and sports mats
• Children’s EVA foam shoes

5. Wire and Cable Sheathing Compounds

Electrical and electronics cable manufacturers use this material as a base for flame-retardant, flexible sheathing on low-voltage and signal cables. Blending with magnesium hydroxide and other flame-retardant packages, producers derive halogen-free compounds with reliable dielectric properties and mechanical flexibility, ensuring compliance with demanding international product safety protocols.

Industry compliance standards

• IEC 60502 (Power cables with extruded insulation and their accessories)
• UL 1581 (Electrical wires, cables, and flexible cords)
• RoHS Directive (2011/65/EU—Restriction of Hazardous Substances)
• ISO 6722 (Road vehicle cables—insulation tests)

Typical usage ratio

• 28–52% by weight in sheathing blend, proportioned based on target flame retardance, insulation thickness, and flexibility, as well as process line throughput and extrusion stability.

Downstream process integration

• Homogenization with flame-retardant fillers and processing aids via compounding extruder; pelletization, then melting and extrusion directly onto wire conductors on cable jacketing lines, with inline spark testing and post-extrusion inspection.

Final product types

• Power cable insulation and sheathing
• Data and fiber optic cable jackets
• Automotive wire coatings
• Building wire LSZH (Low Smoke Zero Halogen) outer layers

6. Toys and Children’s Articles Molding

Toy and children’s product fabricators favor this EVA for making safe, flexible molded and extruded items. The raw material’s phthalate-free, low VOC profile supports compliance with international toy safety protocols, while process modifications enable creation of finished goods in a diverse spectrum of shapes and tactile designs from foam mats to squeezable figures.

Industry compliance standards

• EN 71-3 (Safety of toys—migration of certain elements)
• ASTM F963 (Standard Consumer Safety Specification for Toy Safety)
• REACH (EC) No 1907/2006
• ISO 8124 (Safety of toys—physical and mechanical properties)

Typical usage ratio

• 60–98% by weight in foam and injection-molding recipes, tailored based on target density, flexibility, and requirements for color or texture additives for specific child safety and tactile properties.

Downstream process integration

• Dry blending with color masterbatch, blowing agents, and fillers; expansion molding or direct injection using multicavity tools; finished goods are post-processed (trimming, surface texturing), inspected, and batch-lot safety tested.

Final product types

• Foam toy blocks and mats
• Bath playthings and squeezable figures
• Children’s costume accessories
• Training/eva puzzle mats for infants and toddlers