EBECRYL® 4654

UV/EB cured coatings based on EBECRYL 4654 are characterized by the following performance properties:

• Physically dry after solvent evaporation
• Good chemical and mechanical resistance properties
• High resistance to yellowing and exterior durability

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

EBECRYL® 4654 is designed for use in the formulation of UV/EB energy curried coatings for automotive clear coats by spray application.

• Depending on the application, the coating can be adjusted to the appropriate viscosity using standard reactive diluents such as dipropylene glycol diacrylate (DPGDA) of allnex, 1,6-hexanediol diacrylate (HDDA)of allnex, isobornyl acrylate (IBOA)of allnex, and trimethylolpropane triacrylate (TMPTA) of allnex or solvents such as butyl acetate.
• The reactive diluent must be selected carefully as it may impact considerably on the properties and storage stability of the coating. Because of the many potential combinations with reactive diluents and solvents compatibility must be tested in each individual case.
• UV curing of coatings formulated with EBECRYL® 4654 requires the addition of standard commercial photoinitiators.
• Typical levels are 4-6%, though this may vary to meet the reactivity requirements of the application. In the case of EB curing, a low oxygen atmosphere must be ensured to avoid surface inhibition.

• 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. EBECRYL® 4654 contains a flammable or combustible liquid and vapor.