EBECRYL® 1271

EBECRYL® 1271 is a difunctional aliphatic urethane diacrylate primarily used in the formulation of ultraviolet light (UV) and electron beam (EB) energy curable coatings. Here are some key points about it:

Introduction:

• EBECRYL® 1271 does not contain intentionally added organic tin compounds, heavy metals, hydroquinone (HQ), or methyl ether of hydroquinone (MEHQ). However, it may contain quinones present in raw materials.
• Cured films of EBECRYL® 1271 by UV or EB exhibit good flexibility, adhesion, abrasion resistance, exterior durability, and resistance to yellowing.

Performance Highlights:

• EBECRYL® 1271 is characterized by:
  • No intentionally added tin, heavy metals, or quinones
  • Light color
• UV/EB cured products containing EBECRYL® 1271 offer:
  • Regulation-friendly attributes for tin, heavy metals, and quinones
  • Good flexibility
  • Good adhesion
  • Non-yellowing
  • Exterior durability
  • Abrasion resistance
• Actual properties depend on the selection of other formulation components such as reactive diluents, additives, and photoinitiators.

Suggested Applications:

• Formulated UV/EB curable products containing EBECRYL® 1271 may be applied via various methods including brush, roller, direct or reverse roll, offset gravure, metering rod, slot die, knife over roll, air knife, curtain, immersion, and spin coating, as well as screen printing.
• Recommended for applications requiring compliance with regulations for tin, heavy metals, and quinone content.
• Suitable for coatings for wood and plastic requiring good exterior durability, coatings for rigid and flexible plastics, and metal coatings.

Typical Values:

• Appearance: Clear liquid
• Color: Maximum 75 (Apha scale)

Typical Physical Properties:

• Density: 1.04 g/cm³ at 25°C
• Functionality: Theoretical 2
• HQ/MEHQ Content: 2/5 ppm
• Viscosity: 4550 mPa.s at 60°C

Typical Cured Properties:

• Tensile Strength: 13.9 MPa
• Elongation at Break: 54%
• Young’s Modulus: 29.1 MPa
• Glass Transition Temperature: 19°C

Viscosity Reduction:

• Reactive diluents such as 1,6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA), trimethylolpropane triacrylate (TMPTA), and tripropylene glycol diacrylate (TPGDA) can reduce the viscosity of EBECRYL® 1271. This reduction can influence properties like hardness and flexibility.

Precautions:

• Refer to the Safety Data Sheet (SDS) for identified hazards, recommended personal protective equipment, and procedures.
• Store and handle carefully to avoid exposure to high temperatures, direct sunlight, ignition sources, oxidizing agents, alkalis, or acids.
• Storage and handling should be in appropriate containers and conditions to prevent uncontrollable polymerization.
• Use with adequate ventilation and wash thoroughly after handling.

Overall, EBECRYL® 1271 offers a range of benefits and is suitable for various coating applications, particularly those requiring compliance with specific regulations and high-performance characteristics.