Applications of Braskem Evateno HM 728 EVA in Industrial Manufacturing

Braskem Evateno HM 728 EVA supports advanced processing and performance requirements across diverse industrial sectors, particularly where controlled flexibility, adhesion, and processability are essential to finished product performance. Below, we outline specific industrial downstream scenarios leveraging this grade, referencing applicable standards, reliable incorporation ratios, workflow integration points, and targeted end-use products.

1. Hot Melt Adhesive Formulations for Bookbinding

This EVA copolymer plays a direct role in the bookbinding sector as a core resin for hot melt adhesives, allowing manufacturers to balance rapid setting with flexible binding strength. Its consistent melt flow rate and cohesive properties aid in maintaining lay-flat behavior and tight spines through high-throughput production. The resin’s approval for low-emission adhesive systems is essential where product compliance is driven by occupational safety and end-use standards.

Industry compliance standards

• EN 71-3:2019 (Safety of toys – Migration of certain elements, relevant to children’s book production)
• REACH Regulation (EC No. 1907/2006) – SVHC compliance
• ISO 12467:2012 (Bookbinding paper and adhesives)
• Technical Association of the Pulp and Paper Industry (TAPPI) standards for adhesives in print finishing

Typical usage ratio

• 20–40% by weight in hot melt adhesive formulations, adjusted based on required open time, melting viscosity, and paper type compatibility

Downstream process integration

• Direct addition to adhesive blending tanks with tackifiers, waxes, and stabilizers; molten blend is pumped to bookbinding lines and dispensed at spine application heads before book consolidation and cooling

Final product types

• Trade books, magazines, paperback bindings, catalogues, photo albums, educational material

2. Flexible Film & Packaging Production – Non-Food Industrial Bags

Our EVA resin enhances mechanical and sealing properties for industrial bag films, especially where toughness and resilience against puncture are crucial. In blown film systems, it delivers improved tear resistance and weldability over conventional polyethylenes. Its use in non-food packaging lines is referenced in product compliance for workplace safety and handling, rather than direct food regulatory restrictions.

Industry compliance standards

• ISO 527-3:2019 (Tensile properties of plastics films)
• ISO 1872-1:2019 (Polyethylene and EVA resin identification and designation)
• Directive 94/62/EC (Packaging and packaging waste – composition and recyclability)
• EN 13428:2004 (Packaging standards for industrial use – safety in handling and sealing operations)

Typical usage ratio

• 10–25% EVAt relative to total polyolefin resin matrix, depending on target film thickness, gauge strength, and sealing window requirements

Downstream process integration

• Dry-blended into polyolefin feedstock and fed to extruder; melt compounded prior to blown film bubble formation; online controlled dosing allows fine-tuning of gauge uniformity and optical clarity

Final product types

• Chemical packaging liners, fertilizer sacks, construction aggregate bags, heavy-duty textile bale wraps

3. Wire and Cable Insulation Compounds

This EVA grade is commonly used in the production of wire and cable jacketing where enhanced flexibility and insulation are needed without compromising flame retardance or electrical properties. It supports the formulation of halogen-free, low-smoke compounds, critical for power and data cable manufacturers needing to meet specific fire, smoke, and toxicity thresholds in restricted environments.

Industry compliance standards

• IEC 60502-1:2016 (Power cables with extruded insulation and their accessories)
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances in electrical/electronic equipment)
• UL 1581 (Reference standard for electrical wires, cables, and flexible cords test procedures)
• EN 50268-2 (Measurement of smoke density of cables burning under defined conditions – part 2: Procedure and requirements)

Typical usage ratio

• 15–30% of total compound, depending on flame retardant loading, dielectric specification, and mechanical flexibility needs

Downstream process integration

• Premixed with PE base resin, mineral fillers, and functional additives in an internal mixer; compound is pelletized and fed into continuous wire coating extruders; processed at temperatures optimized to the resin’s melt index and cable draw rate

Final product types

• Low-smoke power cables, data communication cables, flexible appliance cords, station wire coatings

4. Injection Molded Footwear Components

This specific EVA serves as a primary resin for injection-molded midsoles and outsoles in industrial and sport footwear manufacturing, where balance between cushioning, flexibility, and chemical resistance dictates end-user comfort and safety. Its consistent cell structure formation during the foaming process allows manufacturers to fine-tune hardness and shock absorption characteristics for targeted application segments.

Industry compliance standards

• ISO 20871:2018 (Footwear – test methods for outsoles – abrasion resistance)
• REACH Annex XVII (Restrictions on use of hazardous substances in footwear)
• GB/T 3903.3-2011 (Chinese national standard for physical properties of footwear)
• EN ISO 20347:2022 (Occupational footwear – slip resistance, safety requirements)

Typical usage ratio

• 50–100% in midsole foam blends; lower proportions (30–60%) are used in outsole blends where it is combined with harder elastomers for abrasion control

Downstream process integration

• Resin is compounded with blowing agents, antioxidants, and crosslinkers in batch mixers; subsequent direct injection into heated aluminum molds via high-pressure injection molding lines; expansion and cell structuring controlled via temperature and injection profile

Final product types

• Midsoles for running shoes, safety footwear, sandals, work boot outsoles, industrial slip-resistant clogs

5. Masterbatch Carrier Resin for Additive Concentrates

Many masterbatch producers utilize this EVA as an additive carrier, especially where high pigment or additive loading is required with fast let-down and homogenous dispersion during film, sheet, or foam extrusion. Its compatibility with polyolefin systems and low processing temperature threshold prevents additive degradation, maintaining color fidelity or functional performance across different converting applications.

Industry compliance standards

• ISO 22007-2:2015 (Thermal conductivity measurement for masterbatch and polymer blends)
• ASTM D1603 (Carbon black content in olefin plastics – relevant for carbon black masterbatch)
• REACH (Documentation of composition and handling for chemical additive masterbatch manufacture)
• EN 15348 (Recycled plastics – quality control in masterbatch compounding)

Typical usage ratio

• Carrier resin constitutes 25–70% of total masterbatch, adjusted by pigment or additive loading and flow properties needed during downstream let-down

Downstream process integration

• Dosed as the continuous phase in co-rotating twin-screw extruders; masterbatch pellets are cooled, cut, and packed for subsequent dosing into film, fiber, or injection molding processes at the converter

Final product types

• Pigment masterbatches, flame retardant concentrates, slip/anti-block masterbatches, UV-stabilized resin blends for agricultural or automotive use