Applications of Celanese Ateva 2019 EVA in Industrial Manufacturing

Celanese Ateva 2019 EVA (Ethylene-Vinyl Acetate Copolymer) features a high vinyl acetate content designed for specialized industrial applications demanding flexibility, strength, and adhesive performance. As the original manufacturer, we supply this grade for integration into a range of downstream sectors requiring consistent product quality, reliable compliance documentation, and process compatibility for volume manufacturing. Below, we detail its established roles in six major industrial application areas, emphasizing compliance, dosing, production stage integration, and end use forms.

1. Hot Melt Adhesives for Packaging and Bookbinding

Packaging and graphic arts manufacturers depend on the controlled melt characteristics and cohesive strength profile of this copolymer for formulating hot melt adhesives suitable for automated lines and variable substrates. Its consistent flow and high vinyl acetate content support required tack, open time, and flexibility for folding cartons, labels, and book spines, meeting strict process reliability and safety protocols in food and commercial packaging environments.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives, indirect food contact)
• REACH Regulation (EC) No 1907/2006 (SVHC compliance)
• EN 923 (European Adhesive Standard Definitions)
• ISO 9001:2015 (Quality Management Systems in adhesives manufacturing)

Typical usage ratio

• Ranges from 20–45% of adhesive total solids; higher ratios for spine glues, lower for carton sealing. Adjust by required bonding strength, set time, and viscosity based on downstream line speed.

Downstream process integration

• Compounded with tackifiers, waxes, and fillers in melt tanks; the premix is batch or continuously blended under heat before extrusion or slot die application onto paper, board, or film substrates.

Final product types

• Case and carton sealing glues
• Bookbinding adhesives (perfect binding, spine glues)
• Self-adhesive labels and tape backings
• Food tray and flexible pouch adhesives (non-direct food contact)

2. Footwear and Athletic Goods Injection Molding

Producers of sport shoe soles and molded athletic components select this resin for its impact resilience, cell structure uniformity, and ease of coloring when processed through injection or compression molding. The balance of flexibility and tensile properties supports durable, lightweight soles that meet international standards for consumer goods.

Industry compliance standards

• ISO 20344:2021 (Personal protective equipment – Test methods for footwear)
• EN 71-3:2019 (Safety requirements for toys – Part 3: Migration of certain elements, for children’s footwear)
• EU Regulation 1907/2006 (REACH, phthalate and heavy metal content restrictions)
• GB 28011-2011 (China National Standard for Shoe Soles Safety Requirements)

Typical usage ratio

• 60–95% EVA by weight in sole compound; actual loading depends on required shore hardness, blending with foaming agents, and fillers for cushioning or density adjustment.

Downstream process integration

• Metered blending and pelletizing with physical blowing agents and crosslinkers; loaded to injection molding hoppers for preheating, then injected or compressed in steel molds. Post-curing for cell stabilization may follow.

Final product types

• Sport shoe midsoles and outsoles
• Flip-flop and slipper bases
• Kneepads, shin guards
• Foamed inserts for athletic protection

3. Wire & Cable Primary Insulation Compounds

Major cable producers employ this material as the primary base polymer for low-voltage wire and cable insulation, seeking reduced dielectric loss, cold flexibility, and improved processability in high-speed extruder lines. Blend consistency and insulation efficiency remain critical for meeting demanding electrical safety protocols.

Industry compliance standards

• UL 62/1581 (Appliance Wiring Material/General Test Standards)
• IEC 60227 (Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V)
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
• ASTM D470-98 (Rubber and Plastics Insulating Materials)

Typical usage ratio

• 45–75% EVA in insulation blends, co-formulated with flame retardants, processing aids, and mineral fillers. Adjust loading for insulation thickness, voltage rating, and line speed.

Downstream process integration

• Dry blending of base resin with additives; fed to twin-screw extruder for melt compounding. Molten insulation is pressure-coated onto metallic conductors and cooled under controlled quenching to set jacket integrity.

Final product types

• Flexible appliance cords
• Signal and instrumentation cables (up to 500V)
• Low-smoke zero-halogen (LSZH) cable jackets
• Automotive low-voltage wiring insulation

4. Sealant and Caulking Compounds for Construction

The building materials sector uses this copolymer in elastomeric sealants, caulks, and construction adhesives owing to its resilience to thermal cycling and superior adhesion to diverse substrates, including glass, concrete, and metal. Dispersibility and storage stability contribute to batch-to-batch predictability in automated filling and packaging lines.

Industry compliance standards

• ISO 11600 (Building construction sealants, performance requirements)
• ASTM C920 (Standard Specification for Elastomeric Joint Sealants)
• EN 15651 (Sealants for non-structural use in joints in buildings and pedestrian walkways)
• LEED v4 (VOC emission compliance for construction materials)

Typical usage ratio

• 10–30% by weight of total sealant compound, depending on target modulus and application method. Higher loading in general-purpose joints, adjusted for viscosity and elongation needs.

Downstream process integration

• Compounded in high-shear mixers with fillers, plasticizers, and pigments, then de-aerated and transferred directly to cartridge or sausage packs for automated or manual application at building sites.

Final product types

• Window and door frame sealants
• Expansion joint and façade sealants
• Industrial caulking (HVAC, equipment housings)
• Acoustic and fire-retardant construction adhesives

5. Solar Panel Encapsulation Films

Photovoltaic manufacturers rely on this material for producing encapsulation sheets that protect solar cells from moisture ingress, mechanical shock, and UV degradation. The purity and optical clarity of the resin must align with international photovoltaic test standards and allow for consistent lamination onto high-value cell arrays.

Industry compliance standards

• IEC 61215 (Terrestrial photovoltaic (PV) modules – Design qualification)
• UL 1703 (Flat-Plate Photovoltaic Modules and Panels)
• RoHS Directive 2011/65/EU (Restriction of hazardous substances in electronics)
• ISO 9001:2015 (Quality Management for PV film manufacture)

Typical usage ratio

• Typically 100% EVA for the core encapsulant sheet; thin co-extruded layers or additional UV absorbers may be blended in at up to 5%, depending on required light transmittance and anti-aging specifications.

Downstream process integration

• Pellet or powder extrusion into uniform sheets; downstream calendering establishes final thickness (0.3–0.8 mm). Sheets are laminated under vacuum with solar cells and cover glass, using controlled heating and pressure profiles to ensure complete crosslinking.

Final product types

• Photovoltaic cell encapsulation films
• Backsheet encapsulant layers
• Transparent interlayers for laminated solar glass

6. Flexible Film and Sheet for Food Packaging

Flexible packaging converters select this grade for use in food contact films requiring strength, sealability, and clarity. In multilayer structures, this EVA serves as the sealant or tie layer, with key emphasis on migration safety and finished film integrity in compliance with global food packaging regulation.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers for food contact)
• EU Regulation No 10/2011 (Plastic materials and articles intended to come into contact with food)
• GB 9685-2016 (China National Food Safety Standard for Additives in Food Contact Material)
• BfR Recommendation XXI (German standard for plastics in food packaging)

Typical usage ratio

• 10–25% in multilayer film (as sealant/tie layer). Adjusted based on sealing temperature window and target peel strength against base PE/PP or barrier layers.

Downstream process integration

• Co-extrusion with polyolefin or barrier resins in blown film or cast film lines. Layer arrangement and gauge control are monitored inline; the EVA layer enters at the interface or outermost layer depending on sealing application requirements.

Final product types

• Vacuum pouch and lidding films
• Dairy, cheese, and meat packaging films
• Resealable bags and wraps
• Microwaveable steamed packaging