Applications of Braskem Evateno HM 2528 EVA in Industrial Manufacturing

Braskem Evateno HM 2528 EVA supports reliable high-volume production across various industries requiring strict formulation and process controls. As the original manufacturer, we supply this material for sectors prioritizing polymer characteristics and global regulatory conformance. Below, we detail several downstream application scenarios reflecting current and validated usage.

1. Wire & Cable Insulation and Sheathing (Low Voltage Power Cables)

In the manufacture of low voltage wire and cable insulation, Evateno HM 2528 EVA offers insulation integrity and process stability needed for high-speed extrusion. Manufacturers use this grade due to its compatibility with flame retardant additives and its melt flow balance, supporting precision in insulation thickness and surface finish. Application focuses on electrical and communication cables operating below 1kV, where mechanical flexibility and insulation uniformity are critical.

Industry compliance standards

• IEC 60502-1 for power cables with extruded insulation
• UL 1581 for electrical wires and cables (Reference Standard for Safety)
• RoHS Directive 2011/65/EU for hazardous substances limitation
• REACH Regulation (EC) No 1907/2006 for chemicals registration

Typical usage ratio

• 25%–60% EVA by weight in compound, adjusted based on bending radius, filler ratio, and flame retardant requirements

Downstream process integration

• Melt blending with polyethylene or other copolymers and fillers in compounding extruder prior to cable insulation extrusion
• Direct pellet addition into twin-screw or single-screw extrusion lines for sheathing coatings

Final product types

• Low voltage power cable insulation
• Instrumentation and control cables
• Flexible building wire jackets
• Flame-retardant cable sheaths for household wiring

2. Hot Melt Adhesives for Packaging and Bookbinding

Leading adhesive compounders incorporate this EVA in hot melt adhesives for carton sealing, case closing, and bookbinding due to its balanced tack, cohesive strength, and heat-seal behavior. HM 2528 facilitates fast set times on automated lines and maintains bond strength on coated, recycled, or difficult-to-bond substrates. Strict formulation discipline is essential to achieve required open time, to avoid discoloration, and to assure block stability in storage.

Industry compliance standards

• FDA 21 CFR 175.105 for adhesives in food packaging (US market)
• EN 923:2015 for adhesively bonded joints (European standard)
• ISO/TS 21368 for bookbinding adhesives
• Quality management system ISO 9001 applied to adhesive batch control

Typical usage ratio

• 30%–50% EVA by weight in hot melt base, with formulation adapted for viscosity, set speed, and substrate interaction

Downstream process integration

• Batch melting and blending with waxes, resins, and plasticizers in heated mixers
• Continuous extrusion and pelletizing of hot melt formulations for further use in automated adhesive application

Final product types

• Case and carton sealing adhesives
• Perfect binding adhesives for books and catalogs
• Disposable hygienic product assembly adhesives
• Craft and do-it-yourself hot melt sticks

3. Film Extrusion for Greenhouse and Agricultural Films

Specialists in agricultural film extrusion employ HM 2528 to produce films designed for greenhouse covering, silage, and crop protection. The co-polymer’s flexibility at low temperatures, clarity, and puncture resistance are vital for field performance as well as installation. Film integrity under UV exposure and resistance to agrochemicals require precise formulation, often involving anti-block, anti-fog, or UV stabilizing additives.

Industry compliance standards

• EN 13206:2021 for plastic films used in agriculture
• ASTM D882 for tensile properties of thin plastic sheeting
• REACH Regulation (EC) No 1907/2006 for safe use of chemicals
• ISO 9001 for traceability in agricultural film manufacture

Typical usage ratio

• 15%–40% EVA content in coextruded film layers, adjusted according to climate zone and film thickness requirements

Downstream process integration

• Feedstock blending with LDPE/LLDPE and performance additives before blown or cast film extrusion
• Direct pellet dosing into hopper of multi-layer extruders for greenhouse film production

Final product types

• Greenhouse covers with diffusive or anti-drip layers
• Silage wrapping films
• Tunnel and mulching films for crop protection
• Packing films for agricultural produce

4. Foam Injection and Sheet Extrusion for Sports & Leisure Goods

EVA foam producers use HM 2528 for sports mats, shoe midsoles, and protective padding, where high elasticity, controlled expansion, and fine cell morphology are mandatory. Accurate dosing during foam compounding determines resilience and density consistency. QC teams monitor foaming agents and cross-linker interactions to avoid surface defects and ensure repeatability for sporting goods and footwear.

Industry compliance standards

• ISO 20345 for safety footwear
• EN 71-3 for migration of certain elements in toys (applies to mats and children’s sporting goods)
• REACH compliance for restricted substances in consumer foams
• ISO 9001 for documented process and batch control in foam production

Typical usage ratio

• 60%–85% EVA in foam compound, variation based on desired hardness, flexibility level, and closed/open cell ratio target

Downstream process integration

• Compounding with blowing agents, cross-linkers, and pigments in internal mixers, then sheet or block foaming via injection or compression molding
• Press expansion for shoe sole stock sheets and roll form sports mats

Final product types

• Sporting shoe midsoles and insoles
• Yoga, fitness, and gymnasium mats
• Protective helmet pads and sports guards
• Recreational foam toys and soft play surfaces

5. Solar Panel Encapsulation Sheets

Photovoltaic module manufacturers specify this EVA grade for use in solar cell encapsulation films, selecting it for reliable optical transmission and resistance to UV degradation. Manufacturing relies on quality control during extrusion and lamination to prevent bubbles and delamination. Cross-linking during lamination secures glass–cell adhesion, supporting durability under field conditions and thermal cycling.

Industry compliance standards

• IEC 61215 for crystalline silicon photovoltaic modules
• UL 1703 for flat-plate PV modules and panels
• RoHS and REACH for hazardous substances in renewable energy installations
• ISO 9001:2015 for production traceability and documentation

Typical usage ratio

• Typically 100% EVA in each encapsulation sheet, with thickness tailored to cell type and warranty requirements (usually 0.4–0.6 mm)

Downstream process integration

• Pellet melting and extrusion into flat films, followed by post-extrusion cross-linking (peroxide or silane systems), then assembly into module stacks for lamination
• Lamination at 140–155°C under vacuum with controlled pressure and dwell time to ensure sheet fusion

Final product types

• Encapsulant layers for crystalline and thin-film solar modules
• Backsheet intermediate layers in advanced photovoltaic modules
• Protective coatings for building-integrated PV installations

6. Medical Device and Pharmaceutical Packaging Films

Approved medical packaging producers process HM 2528 to manufacture co-extruded films and bag materials used for intravenous solutions and sensitive drugs. Controlled migration, extractables, and seal strength define selection in this sector. Batch release and traceability support regulatory filings in global markets, with focus on reliable barrier performance, autoclavability, and resistance to pharmaceutical ingredients.

Industry compliance standards

• USP <661.1> for plastic packaging systems
• EU Regulation (EU) 10/2011 on plastic materials and articles for food and pharma contact
• ISO 11607 for packaging of terminally sterilized medical devices
• ISO 13485 for medical device quality management

Typical usage ratio

• 10%–40% EVA in multi-layer film laminate, percentage tuned for flexibility, transparency, and heat seal strength depending on the API and sterilization process

Downstream process integration

• Co-extrusion blending with medical LDPE and specialty barrier resins into film lines with class D cleanroom controls
• Thermal lamination and film conversion into finished IV bags, blisters, or syringe coatings

Final product types

• IV solution bag films
• Medical blister packaging
• Sterile inner coatings for pharmaceutical bottles
• Flexible pouches for medical diagnostics