EBECRYL® 8604

EBECRYL® 8604 is an aliphatic urethane tetraacrylate. As the main resin, EBECRYL 8604 offers excellent reactivity combined with good hardness and toughness. As a co-resin, EBECRYL 8604 blended with higher functional (penta or greater) oligomer(s) improves reactivity and weatherability while increasing the ductility with minimum impact surface hardness. Films of EBECRYL 8604 cured by ultraviolet light (UV) or electron beam (EB) combine abrasion resistance, hardness, and excellent exterior durability.

Principal: allnex Radcure

Chemical Family: Polyurethanes (PU), Urethane Acrylates

End Uses: Metal Coating, Optical Coating, Screen Printing Ink, Surface Coating, Top Coat

Compatible Substrates & Surfaces: Plastics, Wood

Features: Abrasion Resistance, Good Hardness, Good Toughness, High Reactivity, Low Odor, Non-Yellowing Grade, Outdoor Durability

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Function
Binder
Product Code
MITM10419
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Performance Highlights

EBECRYL® 8604 is characterized by: Light color and Low odor

UV/EB cured products containing EBECRYL 8604 are characterized by the following performance properties:

  • Excellent reactivity
  • Excellent exterior durability
  • Good surface hardness
  • Excellent abrasion resistance
  • Toughness
  • Non-yellowing

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 8604 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 screen printing. EBECRYL 8604 is recommended for use in:

  • Automotive OEM or Re-finish
  • Exterior durable coatings
  • Coatings for wood and plastic requiring excellent exterior durability
  • Metal coatings
  • Optical coatings
  • Non-yellowing topcoats for wood
  • Screen inks

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

Technical Data

EBECRYL® 8604 - Viscosity Reduction With Reactive Diluents

EBECRYL® 8604 - Technical Data - 1

Graph I shows the viscosity reduction of EBECRYL 8604 with 1,6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA), neopentyl glycol propoxylate diacrylate (NPG(PO)2DA) 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.

EBECRYL® 8604 - Viscosity vs. Temperature

EBECRYL® 8604 - Technical Data - 1

 

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)
Colorless to light straw
Insoluble in (SDS)
Water
Item Number
Odor
Low odor
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
Refractive Index1.5108-at 20°C, liquid, at Break, UV cured 125 μ thick films, nD
Mechanical Properties
ValueUnitsTest Method / Conditions
Elongation4.5%at break, UV cured 125 μ thick films
Tensile Modulus350000.0psiat break, UV cured 125 μ thick films
Tensile Strength10000.0psiat break, UV cured 125 μ thick films
Tensile Strength10000.0psiUV cured 125 µ thick films
Physical Properties
ValueUnitsTest Method / Conditions
Density1.13g/mLAt 25°C
Glass Transition Temperature (Tg)79.0°CDynamic Mechanical Analysis (DMA) at break, UV cured 125 μ thick films
Glass Transition Temperature (Tg)79.0°CDynamic Mechanical Analysis (DMA) UV cured 125 µ thick films
Viscosity5000.0-8000.0mPa.sAt 60°C
Material Composition
ValueUnitsTest Method / Conditions
Isocyanate Contentmax. 0.2%
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)min. 100.0°C
Density (SDS)1.1-1.15g/cm³
Flash Point (SDS)min. 100.0°C
Vapor Pressure (SDS)max. 0.13mm Hgat 20°C
Viscosity (SDS)7000.0-15000.0mPa.sAt 60°C
Volatile Content (SDS)0.0-0.5%(W/W)