EBECRYL® 4513

EBECRYL® 4513 is an aliphatic urethane acrylate used in the formulation of ultraviolet (UV) and electron beam (EB) energy curable coatings. These coatings are known for their elasticity, making them suitable for application on flexible substrates. They offer high chemical and wear resistance and are resistant to yellowing over time.

Here are some key points from the technical datasheet:

• Suggested Applications: EBECRYL® 4513 is used to formulate flexible UV/EB energy curable coatings for various substrates including wood, cork, furniture, paper, parquet, plastics, glass, and films. It can also be used to formulate temporary (strippable) coatings.
• Formulating: The coating's viscosity can be adjusted using reactive diluents such as dipropylene glycol diacrylate (DPGDA), 1,6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA), trimethylolpropane triacrylate (TMPTA), or solvents such as butyl acetate. Compatibility with reactive diluents and solvents should be tested individually.
• Curing: UV curing requires the addition of standard commercial photo initiators, typically at levels of 4-6%, while EB curing requires a low oxygen atmosphere to avoid surface inhibition.
• Physical Properties:
  • Acid number: 1 mg KOH/g
  • Color: Alpha 100
  • Density: 1.15 g/cm³ at 20°C
  • Flash point: > 100°C
  • Functionality: 3.2
  • Hydroxyl content: 0.1%
  • Viscosity: 25,000 mPa.s at 23°C
• Cured Properties:
  • Tensile strength: 1600 psi (11.0 MPa)
  • Elongation at break: 44%
  • Young's modulus: 4900 psi (34 MPa)
  • Glass transition temperature: 32°C
• Precautions: Users should refer to the Safety Data Sheet (SDS) for information on hazards, recommended protective equipment, and procedures.
• Storage and Handling: Care should be taken to avoid exposing the product to high temperatures, direct sunlight, ignition sources, oxidizing agents, alkalis, or acids. Proper containers and storage conditions are recommended, and adequate ventilation should be provided during use.

Overall, EBECRYL® 4513 offers a versatile option for formulating coatings with excellent properties for various applications.