EBECRYL® 3703

EBECRYL® 3703 is an amine-modified bisphenol A epoxy diacrylate designed for fast curing via exposure to ultraviolet light (UV). Here's an overview of its key features, properties, and suggested applications:

Introduction:

• EBECRYL® 3703 is an epoxy diacrylate with amine modification, offering exceptionally fast cure via UV exposure.
• Films cured by UV or electron beam (EB) exhibit good flexibility, high gloss, and excellent chemical resistance. The amine modification enhances adhesion to plastics.

Performance Highlights:

• Characterized by fast UV cure response.
• UV/EB cured products based on EBECRYL® 3703 demonstrate good chemical resistance, flexibility, abrasion resistance, high gloss, and enhanced adhesion to plastics.

Suggested Applications:

• Suitable for various applications including clear coatings for paper, topcoats for wood, and lithographic ink vehicles.
• Can be applied by various coating methods such as lithographic, screen, gravure, direct or reverse roll, and curtain coating.

Viscosity Reductions:

• Can be diluted with reactive diluents such as 1,6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA), trimethylolpropane triacrylate (TMPTA), and tripropylene glycol diacrylate (TPGDA).
• Viscosity reduction with reactive diluents is preferred to avoid solvent emissions.

Physical Properties:

• Acid value, mg KOH/g: max. 5
• Appearance: Clear liquid
• Color, Gardner: max. 5
• Viscosity, 65.5°C, mPa·s: 2000 - 2800
• Density, g/cm³: 1.17
• Dynamic viscosity, MCR, 60°C, mPa·s: 3500 - 4750
• Functionality, theoretical: 2
• Molecular weight, theoretical: 850

Typical Cured Properties:

• Tensile strength: 5900 psi (41 MPa)
• Elongation at break: 47%
• Glass transition temperature: 57°C

Storage and Handling:

• Avoid exposure to temperatures exceeding 40°C for prolonged periods, direct sunlight, ignition sources, oxidizing agents, alkalis, or acids.
• Store and handle in appropriate containers such as stainless steel, amber glass, amber polyethylene, or baked phenolic lined containers.
• Avoid storing under an oxygen-free atmosphere and use dry air to displace material removed from the container.
• Keep container tightly closed and use with adequate ventilation.

EBECRYL® 3703 offers rapid curing and excellent performance properties, making it suitable for various coating applications requiring fast UV cure response and high performance characteristics.