EBECRYL® 246

EBECRYL® 246 is a difunctional aliphatic urethane acrylate that does not contain any intentionally added organic tin compounds, heavy metals*, hydroquinone (HQ) or methyl ether of hydroquinone (MEHQ). (Please note that quinones are present in many raw materials, so the overall quinone content is reduced, but not zero in EBECRYL 246.) Films of EBECRYL 246 cured by ultraviolet light (UV) or electron beam (EB) exhibit excellent abrasion resistance, toughness and flexibility, and are resistant to yellowing.

Principal: allnex Radcure

Chemical Family: Urethane Diacrylate

End Uses: Surface Coating

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Function
Oligomer, Monomer
Product Code
MITM10146
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Labeling Claims
Performance Highlights

EBECRYL® 246 is characterized by:

  • No intentionally added tin, heavy metals*, or quinones
  • Very light color
  • Low odor
  • High viscosity

UV/EB cured products containing EBECRYL 246 are characterized by the following performance properties:

  • Regulation friendly for tin, heavy metals, and quinones
  • Good abrasion resistance
  • Excellent flexibility
  • Exceptional toughness
  • Non-yellowing

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

Applications & Uses

Application Method
Coating End Applications
Compatible Substrates & Surfaces
Cure Method
Product Applications

Formulated UV/EB curable products containing EBECRYL® 246 may be applied via brush, roller, direct or reverse roll, offset gravure, metering rod, slot die, knife over roll, air knife, curtain, immersion and spin coating methods.

EBECRYL® 246 is recommended for use:

  • In applications that must meet regulations for tin, heavy metal, and quinone content
  • In abrasion resistant coatings for flexible substrates such as vinyl and other plastics
  • In laminating adhesives
  • As a modifying oligomer to increase flexibility

Properties

Physical Form

Technical Details & Test Data

Viscosity Reduction

Graph I shows the viscosity reduction of EBECRYL® 246 with 1,6-hexanediol diacrylate (HDDA) product of allnex, isobornyl acrylate (IBOA) product of allnex, trimethylolpropane triacrylate (TMPTA) product of allnex, and tripropylene glycol diacrylate (TPGDA) product of allnex. 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. Graph II illustrates the change in viscosity of EBECRYL® 246 with increasing temperature.

Graph I: Viscosity Reduction with Reactive Diluents

Graph II: Viscosity Vs. Temperature

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000001
Principal

Other

Appearance
Clear liquid
Appearance (SDS)
Extremely viscous liquid
Color (SDS)
Clear to hazy and straw color
Item Number
Odor (SDS)
Acrylate
Other Hazards
Polymerization may occur from excessive heat ,contamination or exposure to direct sunlight , Contact with skin may cause a cross-allergic reaction in persons already sensitized to acrylates.
USA/DOT UN Number
Not Applicable
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 2.0GardnerGardner Color Scale
Chemical Properties
ValueUnitsTest Method / Conditions
Hydroquinone Content10.0ppmHigh Performance Liquid Chromatography (HPLC)
Methoxyhydroquinone Content10.0ppmHigh Performance Liquid Chromatography (HPLC)
Mechanical Properties
ValueUnitsTest Method / Conditions
Elongation62.0%UV cured, 125 μ thick films
Tensile Modulus19700.0psiUV cured, 125 μ thick films
Tensile Strength3875.0psiUV cured, 125 μ thick films
Physical Properties
ValueUnitsTest Method / Conditions
Density1.09g/mLAt 25°C
Glass Transition Temperature (Tg)54.0°CDynamic Mechanical Analysis (DMA) UV cured, 125 μ thick films
Viscosity58600.0cPsAt 60°C
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)min. 100.0°C
Density (SDS)1.1g/cm³
Flash Point (SDS)min. 100.0°CCleveland Open Cup
Solubility In Water (SDS)10.0g/L
Vapor Pressure (SDS)0.133hPaat 20°C
Viscosity (SDS)50000.0-70000.0mPa.sAt 60°C
Volatile Content (SDS)max. 0.3%(W/W)