EBECRYL® 546

EBECRYL® 546 is a type of chlorine-free UV/EB (ultraviolet/electron beam) curable polyester resin that is diluted with trimethylolpropane triacrylate (TMPTA). It's designed specifically to enhance adhesion to plastic substrates. When cured using UV or EB methods, it results in films with good hardness.

Here are some key features and applications of EBECRYL® 546:

Performance Highlights:

• Light color
• Chlorine-free
• Excellent pigment wetting
• Good ink water balance
• Good adhesion-scratch compromise

Applications:

• Offset inks for plastic and metallic substrates
• Suitable for use in flexography, dry offset, and screen printing applications

Viscosity Reduction: EBECRYL® 546 can be further diluted with reactive monomers such as TMPTA, 1,6-hexanediol diacrylate (HDDA), propoxylated glycerol triacrylate (OTA-480), or tripropylene glycol diacrylate (TPGDA). The choice of diluent influences properties like odor, adhesion, hardness, and flexibility.

Specifications and Properties:

• Appearance: Clear to slightly hazy liquid
• Acid value: < 10 mg KOH/g
• Color: Gardner ~1.5
• Density: 1.1 g/cm³ at 25°C
• Resin content: ~60%
• TMPTA content: ~40%
• Viscosity: ~350,000 mPa.s at 25°C, ~5,000 cP/Pa.s at 60°C

Precautions: Before usage, refer to the Safety Data Sheet (SDS) for identified hazards, recommended personal protective equipment, and procedures.

Storage and Handling:

• Avoid exposure to high temperatures, direct sunlight, ignition sources, oxidizing agents, alkalis, or acids to prevent uncontrollable polymerization.
• Store in suitable containers like stainless steel, amber glass, amber polyethylene, or baked phenolic-lined containers.
• Use procedures that avoid removing or displacing oxygen from the material.
• Keep the container tightly closed and use with adequate ventilation.
• Refer to the SDS for recommended storage temperature range.

Overall, EBECRYL® 546 offers versatility and performance suitable for various printing applications, particularly on plastic substrates.