EBECRYL® 8405

EBECRYL® 8405 is characterized by:

• Light color
• Low odor

UV/EB cured products containing EBECRYL® 8405 are characterized by the following performance properties:

• Excellent abrasion resistance
• Toughness
• Excellent exterior durability
• Flexibility
• Good adhesion
• 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® 8405 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® 8405 is recommended for use in:

• Automotive OEM or Re-finish
• Coatings for wood and plastic requiring excellent exterior durability
• Metal coatings
• Post-formable coatings for metal tube and conduit
• Optical coatings
• Non-yellowing topcoats for wood
• Pigmented coatings for wood
• Screen inks
• Exterior durable coatings

Graph I - EBECRYL® 8405 - Viscosity Reduction With Reactive Diluents

Graph I shows the viscosity reduction of EBECRYL® 8405 with 1,6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA), neopentyl glycol propoxylate diacrylate (NPG(PO)2DA) trimethylolpropane triacrylate (TMPTA) and tripropylene glycol diacrylate (TPGDA). 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 - EBECRYL® 8405 - Viscosity vs. Temperature

Graph II illustrates the change in viscosity of EBECRYL® 8405 with increasing 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.