Applications of ExxonMobil Escorene Ultra UL 00328 EVA in Industrial Manufacturing

Escorene Ultra UL 00328 EVA is an ethylene-vinyl acetate copolymer widely adopted in multiple industrial sectors due to its tailored balance between flexibility, clarity, and processing stability. As the manufacturer, we deliver consistent batch-to-batch quality and technical transparency, enabling downstream processors to optimize formulations for target product performance and regulatory approval.

1. Photovoltaic Encapsulant Films

Manufacturers in the solar module industry specify this grade for encapsulant films, where high optical transmission, weatherability, and adhesive properties are critical. Its purity, uniform MI, and control of volatiles ensure reliable lamination and long-term module durability. The material’s reactivity allows precise crosslinking during film extrusion and curing processes, integrating safely into photovoltaic panel assembly lines.

Industry compliance standards

• IEC 61215: Crystalline silicon terrestrial PV modules – Design qualification and type approval
• UL 1703: Standard for Flat-Plate Photovoltaic Modules and Panels
• EN 50548: Junction boxes for PV modules
• REACH SVHC – no classified substances above reporting thresholds

Typical usage ratio

• 80–100% EVA base resin by weight in the encapsulant layer, with crosslinking agents and stabilizers at 0.5–5% depending on module lifespan targets

Downstream process integration

• Melts in the extrusion lamination zone at 90–150°C
• Crosslinked during thermal lamination at 140–160°C, before glass or backsheet application
• Embeds directly between silicon cell layers and external panel glass
• Sheet calendaring and slitting carried out post-extrusion

Final product types

• PV module encapsulant sheets
• Backsheet adhesive layers
• Junction box sealant insert films
• Flexible thin-film solar panel intermediate layers

2. Hot Melt Adhesives for Packaging

Our material is a core raw ingredient for formulating hot melt adhesives (HMA), supporting the packaging sector’s demand for rapid setting, flexibility at low temperature, and resistance to premature cracking. Producers favor the controlled MI and vinyl acetate content, which provide robust open time and tensile strength when paired with tackifier resins and waxes. This application includes food-safe packaging and high-speed, automated line bondings.

Industry compliance standards

• FDA 21 CFR 175.105: Adhesives for food packaging applications
• GMP regulation (EC) No 2023/2006 for food contact materials
• ISO 9001-certified adhesive production
• ASTM D4497: Standard Test Methods for Substrate Adhesion

Typical usage ratio

• Base polymer content ranges from 25–60% by weight in HMA formulations
• Adjustment based on desired viscosity, bond strength, and open time for different packaging substrates

Downstream process integration

• Batch compounded with tackifiers, plasticizers, and antioxidants
• Melt-blended at 120–180°C in reactors or direct-extrusion lines
• Applied to packaging seams through slot, spray, or bead coating heads
• Solidifies on cartons, labels, paperboard boxes, and protective wraps

Final product types

• Carton and case sealing adhesives
• Label adhesives for bottles and cans
• Flexible food pouch seam adhesives
• Envelope closure adhesives

3. Cable Compounds and Wire Insulation

The consistent electrical properties, low gel content, and processability make this EVA resin a reference choice for insulating and jacketing cable compounds in power, data, and communication wire production. It offers oil resistance and stability during crosslinking or non-crosslinked extrusion, contributing to cable flexibility and abrasion resistance. The material achieves flame retardance after compounding with specialty fillers.

Industry compliance standards

• UL 1581: Reference standard for electrical wires, cables, and flexible cords
• IEC 60228: Conductors of insulated cables
• RoHS Directive 2011/65/EU for restricted use of hazardous substances
• EN 50363: Insulating, sheathing, and bedding compounds for power cables

Typical usage ratio

• 40–70% EVA base, depending on softness, dielectric strength, and filler/flexibilizer addition
• Formulators adjust the ratio for sheath hardness and vertical flame test requirements

Downstream process integration

• Melt-compounded with halogen-free flame retardants, antioxidants, and pigments in twin-screw extruders
• Applied over copper or aluminum wire via continuous, pressure, or vacuum extrusion
• Online crosslinking when required by final application (XLPE process)
• Surface cooling and cutting prior to take-up

Final product types

• Low-voltage power cable insulation
• Data transmission and fiber-optic cable jackets
• Instrument and control wire insulation
• Halogen-free, flame-retardant wire coverings

4. Foam Footwear and Injection-Molded Soles

Producers in the athletic and casual footwear industry utilize the unique cell nucleation and elasticity profiles to make lightweight, durable midsoles and outsoles. Our technical support allows precise blending with blowing agents and crosslinkers, meeting slip and rebound requirements for each customer. Both injection molding and sheet foaming processes benefit from the stable MI, reducing scrap and improving cycle time.

Industry compliance standards

• ISO 20871: Footwear – Test methods for outsoles
• EN ISO 20344: Personal protective equipment – Test methods for footwear
• REACH Regulation (EC) No 1907/2006 for chemical safety
• BfR XXI: Recommendations on Food Contact Materials (for casual footwear)

Typical usage ratio

• 50–85% EVA, modified by fillers and crosslinkers according to required hardness (20–60 Shore A)
• Foaming/blowing agent levels can reach 10–20%, depending on density targets

Downstream process integration

• Pellets dry-blended with additives and foamed via heat-initiated molding or sheet extrusion
• Direct injection into multi-cavity shoe sole molds
• Post-molding curing for enhanced resilience and dimensional stability
• Color masterbatch addition pre-extrusion as needed

Final product types

• Expanded foam midsoles for sports shoes
• Compression-molded sandal or slipper bases
• Protective safety shoe inserts
• Kids’ lightweight footwear soles

5. Heat Seal Coatings for Flexible Packaging

The film clarity, low sealing temperature, and controlled surface tack of this EVA grade provide competitive benefits for converters creating heat seal coatings used in snack, dairy, or pharmaceutical pouches. Uniform melting and formulation compatibility help maintain high line speeds and seal peel strength, while compliance to global food safety regimes is supported by our detailed compositional disclosures and auditability.

Industry compliance standards

• FDA 21 CFR 177.1350: Ethylene-vinyl acetate copolymers for food contact
• EU Regulation 10/2011: Plastics Materials for Food Contact
• Japan Food Sanitation Act, Notification No. 201
• ISO 22000: Food Safety Management in manufacturing

Typical usage ratio

• Base resin content in coating recipes: 60–90%
• Blending with 10–40% LLDPE or specialty resins for peelability or strength adjustment

Downstream process integration

• Solvent or dry-blend melt compounding in single or twin-screw extruders
• Direct extrusion or slot-die coating over PET, OPP, or paper webs
• Thermal curing at 100–130°C in register with line loading
• Slitting and roll-stock finishing with in-process QC for seal integrity

Final product types

• Snack food pouches and film lids
• Milk powder and dairy stick packs
• Pharmaceutical sachet linings
• Peelable medical tray covers

6. Toys and Infant Product Molding

Low VOC release, phthalate-free composition, and flexible processing favor use in safe molded components for toys and infants’ goods. The grade’s excellent pigmentability allows bright, high-gloss parts, and the documented absence of classified hazardous substances fulfills global toy safety requirements. Customers can meet repeated compression and bite test specifications in small-lot production with minimal formulation adjustment.

Industry compliance standards

• EN71-3: Safety of Toys – Migration of certain elements
• ASTM F963: Standard Consumer Safety Specification for Toy Safety
• REACH Annex XVII restriction on phthalates
• ISO 8124-3: Safety of toys – Migration of certain elements

Typical usage ratio

• Used at 90–100% in extrusion or injection formulations for toys and teething rings
• Colorants and minor plasticizer blends as required to meet flexibility targets

Downstream process integration

• Thermoplastic extrusion or injection directly into multi-cavity molds
• Addition of pigment and process stabilizer masterbatches during melt
• Pre-formed sheet or pellet supply to contract molders
• Secondary surface texturing and cutting as per design specifications

Final product types

• Flexible infant toys
• Molded teething rings
• Educational play blocks
• Protective padding for child care goods