EBECRYL® 657

EBECRYL® 657 is characterized by:

• Good pigment wetting
• Excellent lithographic behavior
• Good anti-misting properties

UV/EB cured products based on EBECRYL® 657 are characterized by the following performance properties:

• Toughness
• Flexibility
• Low residual odor

Formulated UV/EB curable products containing EBECRYL® 657 may be applied via various coating methods, such as direct or reverse roll, and curtain coating. EBECRYL® 657 is recommended for:

• Lithographic inks and varnishes
• Coatings on paper, metal, and plastic
• Pigment grinding vehicles

• Toughness
• Flexibility
• Low residual odor

EBECRYL® 657 - Viscosity Reduction With Reactive Diluents

Graph I show the viscosity reduction of EBECRYL® 657 with the reactive diluents EBECRYL® 40, EBECRYL® 140 (ditrimethylolpropane tetraacrylate), EBECRYL® 150 (ethoxylated bisphenol A diacrylate), and OTA-480. 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 avoiding solvent emissions. The specific reactive diluents used will influence performance properties such as hardness and flexibility.

EBECRYL® 657 - 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.