EBECRYL® 284

EBECRYL® 284 is characterized by:

•  Light color

UV/EB cured products containing EBECRYL® 284 are characterized by the following performance properties:

• Excellent exterior durability
• Good flexibility
• Excellent toughness
• Non-yellowing

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® 284 may be applied via direct or reverse roll, offset gravure, metering rod, slot die, knife over roll, air knife, curtain, immersion and spin coating methods, as well as screen printing.
EBECRYL® 284 is recommended for use in:

• Coatings for wood and plastic requiring excellent exterior durability
• Screen inks
• Clear coatings for cork
• Metal coatings
• Pigmented coatings for wood

Graph I shows the viscosity reduction of EBECRYL® 284 with 1,6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA) product of allnex, trimethylolpropane triacrylate (TMPTA) product of allnex, and tripropylene glycol diacrylate (TPGDA) product of allnex. 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.

Graph II illustrates the change in viscosity of EBECRYL® 284 with increasing temperature.

Graph I: Viscosity Reduction With Reactive Diluent

Graph II: 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 EBECRYL® 284 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.