EBECRYL® 3721

EBECRYL® 3721 is a modified bisphenol A epoxy diacrylate resin. EBECRYL® 3721 demonstrates increased toughness in ultraviolet light (UV) or electron beam (EB) energy cured coatings compared to standard epoxy acrylates while maintaining high reactivity and superior chemical resistance.

Principal: allnex Radcure

Chemical Name: Bisphenol A epoxy diacrylate

Chemical Family: Epoxy & Epoxy Derivatives, Epoxy Acrylates

Compatible Substrates & Surfaces: Paper, Plastics, Wood

End Uses: Clearcoat, Flexography Ink, Laminating Adhesive, Lithographic Ink, Radiation Curable Coating, Screen Printing Ink

Features: Abrasion Resistance, Chemical Resistance, Good Cure Response, Good Toughness, High Gloss, High Impact Resistance, High Reactivity

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Function
Oligomer, Monomer
Product Code
MITM14089
Single Ingredient
Yes
Synonyms
Bisphenol A Diglycidyl Diacrylate Oligomer, Bisphenol A-Epichlorohydrin Acrylate
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Performance Highlights

EBECRYL® 3721 is characterized by:

  • Good UV/EB cure response

UV/EB cured products based on EBECRYL® 3721 are characterized by the following performance properties:

  • Increased toughness and impact resistance than standard bisphenol A epoxy acrylates
  • Superior chemical resistance
  • Good abrasion resistance
  • High gloss

The final properties of UV/EB cured products also depend on the selection of other formulation components such as reactive diluents, additives and photo initiators.

Applications & Uses

Adhesive & Sealant End Applications
Application Method
Coating End Applications
Compatible Substrates & Surfaces
Cure Method
Ink & Toner End Applications
Markets
Applications
Product Applications

Formulated UV/EB curable products containing EBECRYL® 3721 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 offset, screen and flexographic printing.

EBECRYL® 3721 is recommended for use in:

  • Clear coatings for paper, wood, and rigid plastic
  • Adhesives for paper and film lamination
  • Lithographic, screen and flexographic ink vehicles

Properties

Physical Form

Regulatory & Compliance

Certifications & Compliance
Contains any chemicals listed on Prop 65 (including impurities, residues, catalysts, monomers, and by-products and excluding heavy metals)?

Technical Details & Test Data

Viscosity Reduction
  • Viscosity reduction of EBECRYL® 3721 is possible with common reactive diluents such as 1,6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA) , 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.

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000001
Principal

Storage & Handling

Storage Conditions
  • 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.

Other

Appearance
Clear liquid
Appearance (SDS)
Liquid
Color (SDS)
Clear to hazy light yellow
Item Number
Odor (SDS)
Acrylate
Other Hazards
Polymerization may occur from excessive heat, contamination or exposure to direct sunlight .
USA/DOT UN Number
Not Applicable
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 4.0 GardnerGardnerGardner Color Scale
Mechanical Properties
ValueUnitsTest Method / Conditions
Elongation3.0 %%at Break
Tensile Modulus459110.0 psipsi
Tensile Strength9318.0 psipsi
Physical Properties
ValueUnitsTest Method / Conditions
Density1.14 g/cm³g/cm³At 25°C
Viscosity3100.0-4800.0 mPa.smPa.sat 65.5°C
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)min. 100.0 °C°C
Density (SDS)1.14 g/cm³g/cm³
Flash Point (SDS)min. 198.0 °C°C
Partition coefficient n-octanol/water (SDS)3.57-
Vapor Pressure (SDS)0.01 hPahPaat 20°C
Viscosity (SDS)3000.0-5000.0 mPa.smPa.sat 65.5°C
Volatile Content (SDS)max. 0.5 %%