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EBECRYL® 3105 is a low viscosity, flexible epoxy acrylate oligomer developed by Allnex. It is designed to be easier for formulators to handle and is used in formulations cured using ultraviolet light (UV) or electron beam (EB). This product offers good flexibility, toughness, and adhesion to wood when cured.

Here are some key points about EBECRYL® 3105:

1. Performance Highlights:
   • Low viscosity
   • High reactivity
   • Good flexibility and toughness in cured formulations
   • Very good adhesion to wood
2. Suggested Applications:
   • Primers for wood
   • Clear coatings for paper, wood, flexible, and rigid plastics
3. Typical Values:
   • Viscosity at 60°C: Approximately 600 mPa.s
   • Gardner Color: Maximum 5
   • Acid value: Maximum 5 mg KOH/g
4. Physical Properties:
   • Density: 1.18 g/cm3
   • Theoretical molecular weight: 900
   • Theoretical functionality: 2
   • Polymer solids: 100% by weight
5. Viscosity Reduction:
   • EBECRYL® 3105 can be diluted with reactive monomers such as 1,6-hexanediol diacrylate (HDDA), trimethylolpropane triacrylate (TMPTA), tripropyleneglycol diacrylate (TPGDA), dipropyleneglycol diacrylate (DPGDA), and oligotriacrylate (OTA 480). The choice of diluent influences properties like hardness and flexibility.
6. Storage and Handling:
   • Avoid exposure to temperatures exceeding 40°C for prolonged periods or direct sunlight, as it may cause uncontrollable polymerization.
   • Store in appropriate containers (stainless steel, amber glass, amber polyethylene, or baked phenolic lined) and avoid storing under an oxygen-free atmosphere.
   • Use dry air to displace material removed from the container. Store for no more than 2 years.
7. Precautions:
   • Toxicological properties are not fully determined, but products of this type can be expected to be eye and skin irritants and may cause sensitization or allergic responses. Take appropriate precautions to avoid contact and inhalation.
   • Consult the Safety Data Sheet for detailed handling procedures and protective equipment recommendations.
8. Statutory Labeling:
   • Refer to the Safety Data Sheet for statutory labeling information.

Overall, EBECRYL® 3105 is a versatile product suitable for various UV/EB curable formulations, offering flexibility, adhesion, and ease of handling for formulators.

EBECRYL® 3639 is a flexible epoxy acrylate designed for radiation-curable coatings and inks, offering a balance of flexibility, reactivity, scratch resistance, and chemical resistance. Here's a breakdown of its characteristics and applications:

Introduction:

• EBECRYL® 3639 is a special epoxy acrylate with good flexibility and very high reactivity.
• It is recommended for formulating radiation-curable coatings and inks with excellent flexibility, reactivity, scratch resistance, and chemical resistance.
• Typical applications include flexo inks, screen inks, overprint varnishes, resilient flooring coatings, paper upgrading, coatings on plastics, and coatings on wood.

Performance Highlights:

• Medium viscosity and light color.
• Very high reactivity suitable for UV cured inks and coatings.
• UV cured products based on EBECRYL® 3639 exhibit high flexibility, excellent scratch resistance, and outstanding chemical resistance.

Typical Values:

• Cone and plate viscosity at 25 °C: 15.5 Pa.s
• Color: Gardner max. 2
• DPGDA content: 30 to 35%

Physical Properties:

• Density: 1.15 g/cm³
• Theoretical molecular weight: 1800 g/mol
• Theoretical functionality: 2

Viscosity Reduction:

• EBECRYL® 3639 can be diluted with reactive diluents such as 1,6-hexanediol-diacrylate (HDDA), trimethylolo-propane triacrylate (TMPTA), tripropyleneglycol diacrylate (TPGDA), and OTA 480. The choice of reactive diluent(s) influences properties like hardness and flexibility.

Mechanical Properties:

• Stress-strain properties of EBECRYL® 3639 compared to other flexible radiation-curable oligomers are depicted in a graph, showing its performance in terms of flexibility.

Storage and Handling:

• Avoid exposing radiation-curable products to temperatures exceeding 40°C for prolonged periods or direct sunlight to prevent uncontrollable polymerization.
• Store in appropriate containers and conditions, and avoid storing for more than 2 years.

Precautions:

• Take appropriate precautions to avoid eye and skin contact and inhalation of aerosols or vapors.
• Consult the Safety Data Sheet for handling procedures, protective equipment, emergency, and first aid procedures.

EBECRYL® 3639 offers a versatile solution for radiation-curable coatings and inks, providing flexibility, reactivity, and resistance properties suitable for various applications.

EBECRYL® 605 is a bisphenol A epoxy diacrylate that is diluted with the reactive diluent tripropylene glycol diacrylate (TPGDA). Here's a breakdown of its characteristics and applications:

Introduction:

• EBECRYL® 605 is a light-colored epoxy acrylate oligomer designed to offer ease of handling due to its lower viscosity.
• It exhibits fast cure response and demonstrates high gloss, surface hardness, and superior chemical resistance when cured via ultraviolet light (UV) or electron beam (EB).

Performance Highlights:

• Light color and low viscosity.
• Fast cure response, good surface hardness, high gloss, and good chemical resistance when cured with EBECRYL® 605.
• The actual properties of cured products also depend on the selection of other formulation components such as reactive diluents, additives, and photo initiators.

Suggested Applications:

• Suitable for various applications including overprint varnishes, coatings for wood, chipboard, paper, and rigid plastics, lithographic inks and coatings, paper upgrading, screen print inks and coatings, adhesive for paper laminations, and wood fillers.

Specifications:

• Appearance: Clear liquid
• Acid value: Max. 2 mg KOH/g
• Color: Max. 2 Gardner
• Epoxy content: Max. 0.5%
• Viscosity at 25°C: 6000 - 9000 mPa.s

Typical Cured Properties:

• Tensile strength: 8300 psi (57 MPa)
• Elongation at break: 7%
• Young’s modulus: 196000 psi (1352 MPa)
• Glass transition temperature: 92°C

Viscosity Reduction:

• Graph I demonstrates the viscosity reduction of EBECRYL® 605 with various reactive diluents, including 1,6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA), trimethylolpropane triacrylate (TMPTA), and tripropylene glycol diacrylate (TPGDA).
• Viscosity reduction with reactive diluents is preferred over non-reactive solvents to reduce solvent emissions and improve coating properties.

Precautions:

• Before using EBECRYL® 605, refer to the Safety Data Sheet (SDS) for information on identified hazards, recommended personal protective equipment, and procedures.
• Store in appropriate containers and conditions to avoid uncontrollable polymerization.

EBECRYL® 605 offers a versatile solution for various UV/EB curable coating and ink applications, providing excellent performance properties and ease of handling.