SK Functional EVA Evatane 42-60
SK Functional EVA Evatane 42-60 is a premium random ethylene-vinyl acetate copolymer engineered by SK Functional Polymer (formerly Arkema Functional Polyolefins). With 41–44% vinyl acetate content and exceptionally high melt flow index (~60–75 g/10min), SK Functional EVA Evatane 42-60 is the benchmark resin for solvent-based inks, laminating adhesives, hot-melt adhesive formulations, and flexible industrial compounds. Often referred to as Evatane 4260 in India, this ultra-high-VA resin’s exceptional polarity, softness, and solubility ensure superior compatibility with aromatic solvents, tackifiers, and waxes, making it the ideal choice for Indian and global flexible packaging converters, ink manufacturers, and adhesive formulators seeking premium performance and versatility.
Functional Features & Technical Detail
- Ultra-High VA Content: 41–44% VA for exceptional polarity, adhesion, and softness unmatched by lower-VA grades.
- Exceptional Fluidity: MFI ~60–75 g/10min for ultra-rapid processing, easy solubilization, and superior film formation.
- Superior Solubility: Dissolves rapidly in aromatic solvents (toluene, xylene, cyclohexane) and partially in ketones and esters, enabling fast ink and adhesive formulation.
- Excellent Compatibility: Blends seamlessly with most tackifiers, waxes, pigments, and additives without phase separation.
- Soft, Flexible Matrix: Shore A ~42 for exceptional flexibility and elasticity in films, coatings, and compounds.
- Consistent Quality: Narrow property bands, reliable SK Functional production standards, and comprehensive technical support.
Applications
SK Functional EVA Evatane 42-60 is trusted across India’s flexible packaging, printing, adhesive, and industrial sectors for:
Solvent-Based Inks for Flexible Packaging and Reverse Printing
SK Functional EVA Evatane 42-60 is the preferred binder resin for high-performance solvent-based inks used in flexible packaging reverse printing, label printing, and specialty coating applications. The ultra-high VA content (41–44%) delivers exceptional polarity and adhesion to corona-treated polyethylene, polypropylene, and polyester films, ensuring vibrant color transfer and durable print adhesion. The exceptional melt flow index (~60–75 g/10min) enables rapid dissolution in aromatic solvent blends (cyclohexane, MEK, ethyl acetate), reducing ink preparation time and improving production efficiency. SK Functional EVA Evatane 42-60 provides superior film formation, gloss, and mechanical resistance to flexing and abrasion, critical for high-speed packaging lines and demanding end-use environments. Its compatibility with most pigments, resins, and additives allows ink formulators to optimize color, viscosity, and performance without changing the base binder, reducing inventory complexity and accelerating time-to-market for new ink grades.
Laminating Adhesives and Solvent-Based Bonding Systems
SK Functional EVA Evatane 42-60 serves as the primary polymer in solvent-based laminating adhesives for flexible packaging, laminates, and specialty bonding applications. The resin’s high polarity and softness ensure strong, flexible bonds between films, foils, and papers without brittleness or delamination under thermal stress or mechanical flexing. Its rapid solubility in aromatic solvents enables fast, uniform coating application at controlled viscosity, ensuring consistent coat weight and bond strength across production runs. SK Functional EVA Evatane 42-60 formulations deliver excellent wetting to low-energy surfaces, superior peel strength, and long-term durability in moisture and temperature cycling. The resin’s compatibility with common adhesive additives—plasticizers, crosslinkers, and antioxidants—simplifies formulation development and enables fine-tuning of open time, tack, and cure speed to match specific lamination equipment and production schedules.
Hot-Melt Adhesives with High Fluidity Requirements
SK Functional EVA Evatane 42-60 serves as a premium high-VA base resin in hot-melt adhesive formulations where exceptional fluidity, rapid melting, and superior wetting are critical. The ultra-high MFI (~60–75 g/10min) enables rapid melting at lower temperatures, reducing energy consumption and improving line speed on high-speed packaging, bookbinding, and assembly equipment. When combined with rosin ester tackifiers and microcrystalline waxes, SK Functional EVA Evatane 42-60 delivers strong initial tack, fast set speed, and excellent flexibility in the final bond. The resin’s high polarity ensures reliable adhesion to diverse substrates—cardboard, plastics, metals, and coated papers—expanding application scope for flexible packaging, labels, and specialty bonding. Its low gel content and consistent pellet quality guarantee smooth extrusion, minimal stringing, and reliable performance on automated adhesive application systems.
Flexible Compounds and Industrial Elastomeric Applications
SK Functional EVA Evatane 42-60 is used as a soft, polar matrix in flexible compounds, elastomeric blends, and specialty formulations where high flexibility, low hardness, and strong adhesion are required. The resin’s Shore A ~42 and high elongation (900–1100%) enable the production of soft, impact-resistant compounds suitable for gaskets, seals, flexible tubing, and protective coatings. Its compatibility with various fillers, plasticizers, and crosslinkers allows formulators to tailor hardness, tensile strength, and elasticity to match specific performance requirements. SK Functional EVA Evatane 42-60’s thermal stability and antioxidant package resist degradation during processing and end-use, maintaining mechanical properties and color stability over extended service life.
Applications
- Solvent-based flexible packaging inks
- Reverse printing and label inks
- Laminating adhesives and bonding systems
- High-fluidity hot-melt adhesives
- Flexible elastomeric compounds
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FAQs
Frequently Asked Questions
What is the VA content and melt flow range of SK Functional EVA Evatane 42-60?
How does SK Functional EVA Evatane 42-60 differ from Evatane 40-55 in solvent-based ink and adhesive applications?
Why choose SK Functional EVA Evatane 42-60 over Elvax 40W or EVAFLEX grades for solvent-based inks?
How easily does SK Functional EVA Evatane 42-60 dissolve in common solvent systems?
Is SK Functional EVA Evatane 42-60 suitable for toluene-free and low-aromatic ink formulations?
Can SK Functional EVA Evatane 42-60 be used in hot-melt adhesives and flexible compounds?
What storage conditions and shelf life apply to SK Functional EVA Evatane 42-60?
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