EBECRYL® 524

EBECRYL 524 is characterized by:

• Low color
• Acid functionality

UV cured products containing EBECRYL 524 are characterized by the following performance properties:

• Good adhesion to paper, plastic and metals
• Flexibility

The actual properties of UV/EB cured products also depend on the selection of other formulation components such as reactive diluents, additives and photoinitiators.

Formulated UV/EB curable products containing EBECRYL 524 may be applied via direct or reverse roll, offset gravure, metering rod, slot die, knife over roll, air knife, curtain and immersion coating methods, as well as screen printing. EBECRYL 524 is recommended for:

• Laminating adhesives, particularly between paper/aluminum, paper/LDPE, paper/polypropylene and aluminum/LDPE.
• Primer coatings on metal
• Metallization receptive coatings on plastics
• Improving intercoat adhesion

• Good adhesion to paper, plastic and metals
• Flexibility

EBECRYL® 524 - V Viscosity Reduction With Reactive Diluents

Graph I shows the viscosity reduction of EBECRYL® 524 with 1, 6-hexanediol diacrylate (HDDA), trimethylolpropane triacrylate (TMPTA), and tripropylene glycol diacrylate (TPGDA). Isobornyl acrylate (IBOA) was incompatible at levels >10%. Although viscosity reduction can be achieved with non-reactive solvents, reactive diluents are preferred because they are essentially 100 percent converted during UV/EB exposure to form a part of the coating or ink, thus reducing solvent emissions. The specific reactive diluents used will influence performance properties such as hardness and flexibility.

EBECRYL® 524 - Viscosity vs. Temperature

• Care should be taken not to expose the product to high temperature conditions, direct sunlight, ignition sources, oxidizing agents, alkalis or acids.
• This might cause uncontrollable polymerization of the product with the generation of heat.
• Storage and handling should be in stainless steel, amber glass, amber polyethylene or baked phenolic lined containers.
• Procedures that remove or displace oxygen from the material should be avoided.
• Do not store this material under an oxygen free atmosphere.
• Dry air is recommended to displace material removed from the container.
• Wash thoroughly after handling.
• Keep container tightly closed.
• Use with adequate ventilation.