EBECRYL® 4381

EBECRYL® 4381 is a unsaturated polyester diluted with 30% dipropyleneglycol diacrylate (DPGDA)(1). Coatings based on EBECRYL® 4381 are characterized by good hardness and high gloss

Principal: allnex Radcure

Chemical Family: Polyesters

End Uses: Primer, Radiation Curable Coating, Wood Coating

Compatible Substrates & Surfaces: Cork, Wood

Features: Good Hardness, High Gloss

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Function
Binder
Product Code
MITM00321
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features

Applications & Uses

Application Method
Coating End Applications
Compatible Substrates & Surfaces
Cure Method
Markets
Applications
Product Applications
  • EBECRYL 4381 is designed for use in the formulation of UV/EB energy curable coatings and primers for application by roller coating, spraying and curtain coating on wood, cork and furniture.
  • Formulations based on EBECRYL 4381 are recommended for - UV/EB cured roller coated wood primers and coatings
  • The actual properties of UV/EB energy cured products also depend on the selection of other formulation components such as reactive diluents, additives and photoinitiators.
Formulation Information
  • Coatings can be adjusted to appropriate viscosity for the application with additional DPGDA or the addition of other standard reactive diluents such as dipropylene glycol diacrylate (DPGDA)(1), isobornyl acrylate (IBOA)(1), and trimethylolpropane triacrylate (TMPTA)(1) or solvents such as butyl acetate.
  • EBECRYL 4381 is compatible with most acrylate monomers and oligomers.
  • Because of the many potential combinations with reactive diluents and solvents, compatibility must be tested in each individual case.
  • UV curing of coatings formulated with EBECRYL 4381 requires the addition of standard commercial photoinitiators.
  • Typical levels are 4-6%, though this may vary to meet the reactivity requirements of the application. In the case of EB curing, a low oxygen atmosphere must be ensured to avoid surface inhibition.
  • Unmodified EBECRYL 4381 yields hard, glossy films.
  • Lower gloss coatings can be produced using silica matting agents such as the SYLOID® ED grades (Grace)

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 (SDS)
Liquid
Color (SDS)
Yellowish
Item Number
Odor (SDS)
Ester like
Other Hazards
Polymerization may occur from excessive heat, contamination or exposure to direct sunlight
Oxidizing Properties (SDS)
No
USA/DOT UN Number
Not Applicable
Optical Properties
ValueUnitsTest Method / Conditions
Iodine Color Value3.0-
Chemical Properties
ValueUnitsTest Method / Conditions
Acid Value14.0mg KOH/g
Mechanical Properties
ValueUnitsTest Method / Conditions
Elongation12.0%at Break
Tensile Strength1885.0psi
Physical Properties
ValueUnitsTest Method / Conditions
Density1.15g/mLAt 20°C
Flash Pointmin. 100.0°C
Viscosity12000.0mPa.sat 23°C
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)94.0°CDIN 53171 at 101.3kPa
Boiling Point (SDS)min. 100.0°C
Density (SDS)1.18g/cm³at 20°C
Density (SDS)1.15g/cm³DIN EN ISO 2811 at 20°C
Flash Point (SDS)min. 100.0°CDIN EN ISO 2719
Percent Volatile (SDS)max. 0.3%(W/W)
Vapor Pressure (SDS)max. 1.33hPaat 20°C
Vapor Pressure (SDS)3.0hPaEC Method A4 at 20°C
Viscosity (SDS)1800.0-2800.0mPa.sat 65.5 °C
Viscosity (SDS)12000.0mPa.sDIN EN ISO 3219 at 23°C