EBECRYL® 820 is a low viscosity polyester acrylate oligomer designed for UV and electron beam (EB) curing systems. It belongs to the ECOWISE™ CHOICE product range for selected applications.
Key features and information about EBECRYL® 820:
- Introduction: EBECRYL® 820 is specifically formulated for its exceptional pigment wetting properties, making it ideal as a pigment grinding resin. It provides a fast cure response when formulated with other oligomers and cured via UV or EB radiation. This oligomer is particularly suited for the preparation of high pigment loading pigment pastes for sensitive applications such as food packaging.
- Performance Highlights:
- Low viscosity
- Excellent pigment wetting properties
- Good cure response
- Suggested Applications: EBECRYL® 820 is recommended for use in flexographic inks and coatings for indirect food packaging and related applications. High loading pigment paste formulations prepared with EBECRYL® 820 may be used in UV/EB curable inks intended for flexography, lithography, gravure, or potentially ink-jet printing.
- Specifications:
- Appearance: Clear liquid
- Color (Gardner): max. 10
- Typical Physical Properties:
- Acid value: ~4 mg KOH/g
- Density at 25°C: 1.16 g/cm³
- Flash point (Setaflash): > 100°C
- Functionality: theoretical 6
- Viscosity at 25°C: ~550 mPa·s
- Precautions: Before using EBECRYL® 820, it's important to refer to the Safety Data Sheet (SDS) for information on identified hazards, recommended personal protective equipment, and handling procedures.
- Storage and Handling: Care should be taken to avoid exposing EBECRYL® 820 to high temperature conditions, direct sunlight, ignition sources, oxidizing agents, alkalis, or acids, as these may cause uncontrollable polymerization. Storage and handling should be in appropriate containers, avoiding procedures that remove or displace oxygen from the material. Dry air is recommended for displacing material removed from the container. Keep the container tightly closed and use with adequate ventilation.
Overall, EBECRYL® 820 is a versatile oligomer suitable for formulating UV/EB curable inks and coatings, particularly for applications requiring high pigment loading and sensitivity to food packaging regulations.
