EBECRYL® 4666

EBECRYL® 4666 is a weather-stable undiluted aliphatic urethane acrylate having very low viscosity

Principal: allnex Radcure

Chemical Family: Polyurethanes (PU), Urethane Acrylates

End Uses: Radiation Curable Coating

Compatible Substrates & Surfaces: Mineral Substrate, Plastics, Wood

Features: Abrasion Resistance, Chemical Resistance, Excellent Scratch Resistance, High Reactivity, Improved Mechanical Resistance, Low Viscosity, Weatherstable, Yellowing Resistance

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Function
Binder
Product Code
MITM00327
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Performance Highlights
  • Formulations based on Ebecryl®4666 exhibit high reactivity and result in hard films.
  • Coatings formulated with Ebecryl®4666 are characterized by very good chemical and mechanical resistance including scratch resistance.
  • Other characteristics are high abrasion resistance and very good resistance to yellowing.

Applications & Uses

Application Method
Coating End Applications
Compatible Substrates & Surfaces
Cure Method
Markets
Applications
Product Applications
  • Ebecryl®4666 is used in the formulation of radiation-curing coatings (UV and electron beam) for the coating of wood, plastics and mineral substrates via the roller coating, spray or curtain coating processes.
Formulation Information
  • Because of the low-viscosity of Ebecryl®4666, coating formulations require less reactive thinner and thus the binder properties are retained over a broad range of viscosities. Application at higher temperatures is also possible.
  • Conventional photoinitiators can be used for the UV curing of Ebecryl®4666. These are added in quantities of up to 5 % or higher in concentrations that satisfy the reactivity requirements of the respective application.
  • With electron beam curing good inertisation must be ensured (risk of surface inhibition). Matting agents typically used in the coatings industry can be used for the formulation of matt coatings.
  • Special consideration should be given here to sedimentation, as this can result in premature gelling of the coatings.

Properties

Physical Form
Compatibility Data
  • Depending on the application, the coatings can be set to application viscosity using conventional reactive thinners (mono-, di-, tri- or tetra acrylic acid esters) or solvents (e.g. butyl acetate).
  • If solvents are used, these must be completely removed from the film prior to irradiation.
  • Due to the large number of possible combinations, compatibility must be tested in each case.

Regulatory & Compliance

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

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000001
Principal

Storage & Handling

Storage Conditions
  • Storage in original sealed Allnex containers. Recommended storage temperature : -10 to + 35°C
  • Protect from intense radiation (light, UV), heat and foreign material.
  • This material should not be stored for more than 12 months.
  • The lapse of the 12 months period does not necessarily mean that the product no longer meets specifications or the set values.
  • However, prior to using said product, Allnex recommend to test such a product if it still meets the specifications or the set values.
  • Allnex does not make any guarantees regarding the product after the lapse of the 12 months period and Allnex shall not be responsible or liable in any way for the product failing to meet specifications or the set values after the lapse of the 12 months period.

Other

Appearance (SDS)
Liquid
Color (SDS)
Yellowish
Immiscible In (SDS)
Water
Item Number
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 Scale100.0HazenHazen Color Scale
Chemical Properties
ValueUnitsTest Method / Conditions
Acid Number0.2mg KOH/g
Hydroxyl Contentmax. 0.1%
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life12.0mo
Physical Properties
ValueUnitsTest Method / Conditions
Density1.18g/cm³At 20°C
Flash Pointmin. 100.0°C
Viscosity60000.0mPa.sat 23°C
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Density (SDS)1.18g/cm³at 20°C
Vapor Pressure (SDS)14.0hPaat 20°C
Viscosity (SDS)98390.0mPa.sAt 20°C