EBECRYL® 765

EBECRYL® 765 is a diluted acrylic polymer used primarily as a modifying oligomer in formulations for ultraviolet light (UV) or electron beam (EB) energy curing processes. Here are the key details about EBECRYL® 765:

Introduction:

• EBECRYL® 765 is a diluted acrylic polymer, consisting of 60% polymer and 40% by weight of a 1/1 ratio mixture of the reactive diluents 1,6-hexanediol diacrylate (HDDA) and tripropylene glycol diacrylate (TPGDA).
• It is designed to enhance adhesion on difficult substrates when used in UV or EB curable formulations.

Performance Highlights:

• Characterized by moderate viscosity and a light color.
• UV cured products containing EBECRYL® 765 exhibit good adhesion to difficult substrates, intercoat adhesion, and flexibility.

Suggested Applications:

• Suitable for various application methods including direct or reverse roll, offset gravure, screen printing, and more.
• Recommended for silk screen inks, coatings on plastics, and adhesives and inks for difficult substrates such as untreated polyester, polypropylene, and polystyrene.

Typical Properties:

• Appearance: Clear liquid
• Color, Gardner: Less than 3
• Density at 25°C: 1.05 g/cm³
• Polymer Content: 60% by weight
• HDDA Content: 20% by weight
• TPGDA Content: 20% by weight
• Viscosity at 25°C: Approximately 20,000 mPa.s

Viscosity Reduction:

• EBECRYL® 765 can be further diluted with additional reactive monomers such as HDDA, TPGDA, DPGDA, OTA-480, or TMPEOTA to achieve desired viscosity levels.
• Reactive diluents are preferred for viscosity reduction as they become part of the coating or ink, reducing solvent emissions.

Precautions:

• Users should refer to the Safety Data Sheet (SDS) for information on handling precautions and recommended personal protective equipment.

Storage and Handling:

• Store EBECRYL® 765 in appropriate containers away from high temperature conditions, direct sunlight, and ignition sources.
• Use adequate ventilation and avoid exposure to oxidizing agents, alkalis, or acids.

EBECRYL® 765 is a versatile acrylic polymer designed to improve the performance of UV and EB curable formulations, particularly in achieving adhesion on challenging substrates.