Applications of Braskem Evateno PN2021 EVA in Industrial Manufacturing

Braskem Evateno PN2021 EVA is an established ethylene-vinyl acetate copolymer recognized for its functional integration in industrial manufacturing lines. Its adaptability to compounding and processing enables precise performance in key verticals. Below we detail several leading downstream application scenarios, with focused information on standards, addition levels, deployment points in manufacturing, and representative end products.

1. Footwear Injection Molding

EVA resins provide the required cushioning, flexibility, and lightness necessary for midsoles and outsole production in athletic, casual, and occupational footwear. Manufacturers integrate this polymer in direct injection foaming for high-volume shoe component fabrication, where consistent mechanical resilience and regulatory compliance are indispensable due to product wearability and safety criteria, particularly for markets with stringent chemical content controls.

Industry compliance standards

• ISO 20344:2021 (Personal protective footwear—Test methods)
• EN 20347:2022 (Occupational footwear safety requirements)
• REACH Regulation (EC) No 1907/2006 for restricted substances
• GB 30585-2014 (China hazardous substance limit for children’s footwear)

Typical usage ratio

• 40% to 60% of total compound weight, adjusted based on desired hardness and density; blend modified with fillers, blowing agents, and pigments according to specific outsole or midsole requirements.

Downstream process integration

• Material enters extrusion or batch mixing, then proceeds to injection molding machines, where in situ crosslinking and foaming create component structure during mold shaping.

Final product types

• Sports shoe midsoles and outsoles
• Sandals and slippers
• Safety and work boots
• Children’s shoes

2. Solar Panel Encapsulant Films

In photovoltaic module construction, EVA functions as the encapsulant layer, ensuring optimal adhesion between silicon wafers and front/back sheets. Manufacturers rely on precise formulation control and cleanroom processing to achieve dimensional stability, UV resistance, and electrical insulation. Compounding must adhere strictly to standards for low ionic contamination and consistent transparency, directly impacting module reliability and service lifespan.

Industry compliance standards

• IEC 61215:2021 (PV Module Qualification)
• UL 1703/UL 61730 (PV module safety standards)
• RoHS Directive 2011/65/EU (Hazardous substances restrictions)
• GB/T 36565-2018 (China encapsulant films for PV)

Typical usage ratio

• 70% to 95% of film formulation; copolymer content tuned to balance melt flow and crosslinking properties, with remainder additives for curing and stabilization.

Downstream process integration

• Raw granules are compounded with UV absorbers and curing agents, extruded into thin film, then laminated onto solar cells under vacuum and elevated temperature for final module assembly.

Final product types

• Crystalline silicon PV modules
• Thin-film solar panels
• BIPV (building-integrated photovoltaics) laminates

3. Hot Melt Adhesives for Packaging

EVA-based hot melt adhesives provide low-temperature flexibility and fast-setting properties that packaging producers leverage for high-speed carton and case sealing lines. Tight control over copolymer ratio and blending ensures bond integrity on diverse substrates from paperboard to coated films, supporting food packaging compliance and continuous line uptime without residue accumulation or odor concerns.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives in food packaging)
• EN 1230 (Odor and taste transfer for packaging)
• ISO 22000:2018 (Food safety management—applied when used for direct/indirect food contact)
• GB 9685-2016 (China positive list for food contact substances)

Typical usage ratio

• 30% to 60% of adhesive blend; proportion varies by viscosity target and open time, with resin, waxes, and tackifiers making up remainder for application-specific requirements.

Downstream process integration

• Material melted and compounded with other polymers and additives, then applied via slot die or spray on automated packaging lines before rapid cooling and bond formation.

Final product types

• Corrugated box, carton, and case adhesives
• Flexible laminate pouch seals
• Straw and spout attachment for beverage cartons
• Nonwoven hygiene product closures

4. Wire & Cable Insulation Compounds

In wire and cable sheathing, EVA serves to improve dielectric strength, process stability, and insulation softness for low and medium voltage applications. Compounders select formulation ratios to deliver flame retardancy, low-temperature flexibility, and long-term durability, meeting both regional and international regulatory regimes for electrical component safety and environmental protection.

Industry compliance standards

• IEC 60502-1 (Power cables with extruded insulation)
• UL 62/UL 758 (Flexible cords; Appliance wiring material)
• RoHS Directive 2011/65/EU (Restriction of hazardous substances)
• CSA C22.2 No. 210 (Canadian insulation materials)

Typical usage ratio

• 20% to 40% of insulation/filler blend by weight; proportion adjusted for mechanical toughness, aging resistance, and flame performance, often combined with flame retardants and plasticizers.

Downstream process integration

• Blended via twin-screw extrusion with inorganic fillers and processing aids, then applied directly as sheath or insulation layer over conductor wires through extrusion coating equipment.

Final product types

• Flexible power and control cables
• Signal and communication wires
• Automotive cable insulation
• Instrumentation wiring

5. Foam Sheet Production for Sports Mats

EVA-based foam sheets underpin mat manufacturing for sports, yoga, and protective applications due to their soft touch, resilience, and form memory. Producers rely on fine control of crosslinking and blowing during continuous foam extrusion, which determines both density and surface texture, while maintaining compliance with VOC and phthalate limitations for export to regulated markets.

Industry compliance standards

• EN 71-3:2019 (Toy safety—migration of elements, relevant for sports mats used by children)
• SVHC under REACH (Substances of Very High Concern restrictions)
• PROP 65 (California list for consumer product exposures)
• ISO 19851:2018 (Yoga mat safety requirements)

Typical usage ratio

• 60% to 90% of total sheet mass, depending on target density, mechanical cushioning, and elasticity; remaining fraction includes crosslinkers, blowing agents, pigments.

Downstream process integration

• Compound prepared in internal mixer or twin-screw extruder, foam expansion induced by controlled foaming system during sheet extrusion, then sheets are cooled, trimmed, and embossed.

Final product types

• Martial arts and wrestling mats
• Yoga and fitness mats
• Protective play area tiles
• Sound-dampening floor underlays

6. Flexible Film and Sheet for Packaging

Film converters employ EVA to impart clarity, puncture resistance, and sealability in flexible packaging, especially in low-temperature applications like frozen food wrap and medical device pouches. Formulation flexibility permits tailored mechanical and sealing profiles with close monitoring for migrant chemicals, thereby ensuring food safety and sterilization compatibility as required by global converters and healthcare packagers.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers for food contact)
• EU Regulation (EU) No 10/2011 (Plastics materials and articles for food contact)
• ISO 11607-1:2019 (Packaging for terminally sterilized medical devices)
• Japan Food Sanitation Act (positive list for packaging materials)

Typical usage ratio

• 10% to 25% blended with LDPE or LLDPE in multilayer films, with ratio selection governed by target peel strength, cold-seal behavior, or clarity; higher fractions for specialty sealing layers.

Downstream process integration

• Pellets co-extruded with other polyolefins in blown or cast film lines, followed by conversion into bags, pouches, or lidstock via die cutting and heat sealing.

Final product types

• Frozen food packaging films
• Medical device sterilization pouches
• Lidding for ready meal trays
• Multi-layer vacuum pouches and bags