EBECRYL® 245

EBECRYL® 245 is an aliphatic urethane diacrylate oligomer diluted with 25% of tripropylene glycol diacrylate (TPGDA). It is primarily used in UV/EB curable formulations. Here are some key details about EBECRYL® 245:

Introduction:

• EBECRYL® 245 is characterized by its light color and low irritancy.
• Films cured by ultraviolet light (UV) or electron beam (EB) exhibit good flexibility and non-yellowing properties typical of an aliphatic urethane.

Performance Highlights:

• Light color
• Good flexibility
• Good non-yellowing properties

Suggested Applications:

• Flexible screen inks and coatings
• Coatings on PVC, linoleum, and flexible plastics

Typical Values:

• Höppler viscosity at 60°C: ± 2500 mPa.s
• Gardner Color: max. 2

Physical Properties:

• Density: 1.10 g/cm3
• Molecular weight, theoretical: 2000
• Functionality, theoretical: 2
• Polymer solids: 75% by weight
• TPGDA: 25% by weight

Viscosity Reduction: EBECRYL® 245 can be diluted with reactive monomers such as 1,6-hexanediol diacrylate (HDDA), tripropyleneglycol diacrylate (TPGDA), trimethylolpropane triacrylate (TMPTA), oligotriacrylate (OTA 480), octyl/decyl acrylate (ODA), and isobornyl acrylate (IBOA). The choice of reactive diluent(s) will influence performance properties such as hardness and flexibility.

Storage and Handling:

• Avoid exposing to temperatures exceeding 40°C for prolonged periods or direct sunlight.
• Use appropriate containers such as stainless steel, amber glass, amber polyethylene, or baked phenolic lined containers.
• Do not store under an oxygen-free atmosphere.
• Use dry air to displace material removed from the container.
• Shelf life: Should not be stored for more than 2 years.

Precautions:

• Toxicological properties have not been fully determined; may cause eye and skin irritation and sensitization.
• Take appropriate precautions to avoid contact and inhalation.
• Consult the Safety Data Sheet for handling procedures and protective equipment.

Statutory Labeling: Refer to the Safety Data Sheet for statutory labeling information.