EBECRYL® 81

EBECRYL® 81 is an amine modified polyether acrylate that exhibits very low viscosity and fast cure via exposure to ultraviolet light (UV). Films of EBECRYL 81 cured by UV or electron beam (EB) demonstrate high gloss and low residual odor. EBECRYL® 81 is especially suited to applications requiring low viscosity and fast UV cure, including overprint varnishes and flexographic inks.

Principal: allnex Radcure

Chemical Family: Polyester Acrylates

End Uses: Clearcoat, Flexography Ink, Top Coat, Varnishes

View All Documents

Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Function
Oligomer, Monomer
Product Code
MITM00431
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Performance Highlights

EBECRYL® 81 is characterized by:

  • Very low viscosity
  • Fast cure response
  • Light color

 

UV/EB cured products based on EBECRYL® 81 are characterized by the following performance properties:

  • High gloss
  • Low residual odor

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
Ink & Toner End Applications
Markets
Applications
Product Applications

Formulated UV/EB curable products containing EBECRYL® 81 may be applied via direct or reverse roll, offset gravure, metering rod, slot die, knife over roll, air knife, curtain, immersion, vacuum, spin and spray coating methods, as well as flexographic printing. EBECRYL® 81 is recommended for use in:

  • Overprint varnishes
  • Clear coatings for wood, paper and plastics
  • Top coats for wood
  • Flexographic inks and varnishes

Properties

Physical Form
Cure Response Comparison

To compares the cure response of EBECRYL® 81 with a polyester acrylate other amine modified polyether and demonstrates the faster reactivity of amine modified polyether acrylates. EBECRYL® 81 is notable for its combination of low viscosity with good reactivity.

Viscosity at 25°C, cP/mPa-s 504 3350 139 622
UV energy mJ/cm² 640 <90 230 110
Cure speed, fpm 30 200 110 155

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

Graph 1 shows the viscosity reduction of EBECRYL® 3700 when diluted with EBECRYL® 81.

EBECRYL® 81 Viscosity Reduction of EBECRYL® 3700

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)
Clear liquid
Color (SDS)
Amber
Insoluble in (SDS)
Water
Item Number
Odor
Low residual odor
Odor (SDS)
Ester like
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. 2.0GardnerGardner Color Scale
Chemical Properties
ValueUnitsTest Method / Conditions
Amine Value1079.0g KOH/g
Mechanical Properties
ValueUnitsTest Method / Conditions
Elongation8.0%at break, UV cured 125 μm thick films
Tensile Modulus16000.0psiUV cured 125 μm thick films
Tensile Strength790.0psiUV cured 125 μm thick films
Physical Properties
ValueUnitsTest Method / Conditions
Density1.08g/mLAt 25°C
Glass Transition Temperature (Tg)-18.0°CDynamic Mechanical Analysis (DMA)
Viscosity80.0-120.0cPsAt 25°C
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)min. 100.0°C
Density (SDS)1.06g/cm³
Flash Point (SDS)191.0°CCleveland Open Cup
Storage Temperature (SDS)4.0-40.0°C
Vapor Pressure (SDS)max. 1.33hPaat 20°C