LG Chem EVA EA40055
LG Chem EVA EA40055 (commonly called EVA 40055 in trade) is a high-performance ethylene-vinyl acetate copolymer containing 40% vinyl acetate and a high melt flow index (~55 g/10 min). Developed by LG Chem, a global leader in petrochemicals, this grade is engineered as a base polymer for hot-melt adhesives (HMA) and ink formulations. Its property profile—high VA, high MFI, and balanced flexibility—makes it the preferred choice for packaging, bookbinding, woodworking, and specialty adhesive applications in India and worldwide.
Functional Features & Technical Detail
- High VA Content: 40% VA delivers strong polarity, adhesion, and flexibility for tough bonding tasks.
- High Melt Flow Index: ~55 g/10 min for rapid melting, excellent wetting, and fast line speeds in HMA systems.
- Low Hardness, High Elongation: Shore A ~46, elongation ~1350% for soft, flexible adhesive films.
- Excellent Compatibility: Miscible with a wide range of tackifiers, waxes, and resins for custom formulations.
- Consistent Quality: Low gel, uniform VA/MFI, and reliable supply from LG Chem’s global EVA portfolio.
Applications
LG Chem EVA EA40055 is trusted by Indian and global manufacturers for:
- Packaging & Carton-Sealing Hot-Melt Adhesives: Enables high-speed case and carton sealing with strong tack, good wetting, and flexibility across temperature ranges.
- Bookbinding & Graphic Arts Adhesives: Delivers optimal open time, green strength, and final flexibility for spine and side glues in books, magazines, and notebooks.
- Woodworking, Furniture, and Edge-Banding Adhesives: Provides high adhesion to wood and laminates, with resistance to creep and excellent processability for edge-banding and veneering.
Adhesives and Inks for Flexible Packaging: Used as a base for HMA and ink systems where high VA and rapid flow are needed for strong, flexible bonds and print clarity.
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FAQs
Frequently Asked Questions
What are the VA content, MFI, density, and melting point of LG Chem EVA EA40055?
How does EA40055 compare to Elvax 40W, EVATANE 40-55, or high-VA EVAFLEX grades?
What types of hot-melt adhesive applications is EA40055 best suited for?
How does high MFI (~55) affect line speed and viscosity in HMA systems?
Is EA40055 suitable for food-related packaging adhesives?
Can EA40055 be blended with other EVA grades or polymers to adjust performance?
What processing temperature range is recommended for EA40055-based hot-melts?
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