DISPERBYK® 168 is a wetting and dispersing additive for solventborne and solvent-free radiation-curable coatings, printing inks, and adhesives. It provides good steric stabilization and reduces viscosity, making it suitable for a variety of applications including radiation-curable coatings, coil and can coatings, and radiation-curable adhesives. This additive is ideal for use in solventless and high solids coatings, as well as printing inks, offering enhanced performance in radiation-cure applications.

Physical Form: Liquid

Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Markets
Applications
Application Area
Cure Method
Adhesive & Sealant End Applications
Coating End Applications
Ink & Toner End Applications
Application Information
  • Coatings Industry

Recommended Levels

Inorganic Pigment 10-15 %
Titanium Dioxides 5-6 %
Organic Pigments 30-90 %
Carbon Blacks 70-140 %

Special Features and Benefits

  • The additive deflocculates the pigments and stabilizes them by means of steric hindrance.
  • It provides equal electrical charge to the pigment particles.
  • The resulting repulsion and the steric stabilization prevent a possible co-flocculation, which leads to flood and float-free color in pigment mixtures.
  • The deflocculating properties of the additive increase gloss, color strengh, transparency, and hiding power and reduce the viscosity of the millbase.

Recommended Use
The additive is recommended for radiation-curable industrial coatings, can coatings and coil coatings.

Incorporation and Processing Instructions
For optimum performance, the additive must be incorporated into the millbase before addition of pigments.
The resin and solvent components of the millbase are pre-mixed and then the additive is slowly incorporated while stirring continuously. Do not add the pigments until the additive has been fully distributed.

  • Printing Inks

​​​​​​​Recommended Levels

Titanium Dioxides 2.5 - 5 %
Organic pigments, Carbon blacks 10 - 20 %

Recommended Use

  • The additive is particularly recommended for UV-curable flexo and offset printing inks.
  • It increases gloss and transparency. DISPERBYK-168 reduces the dispersion time, lowers viscosity and increases color strength.

Incorporation and Processing Instructions
For optimum performance, the additive must be incorporated into the millbase before addition of pigments.
The resin and solvent components of the millbase are pre-mixed and then the additive is slowly incorporated
while stirring continuously. Do not add the pigments until the additive has been fully distributed.

  • Adhesives​​​​​​​
Titanium Dioxides 2.5-5 %
Organic Pigments, Carbon Blacks 10-20 %

Special Features and Benefits

  • The additive deflocculates the pigments and stabilizes them by means of steric hindrance, which leads to a reduction in viscosity and higher transparency.
  • DISPERBYK-168 reduces the dispersion time.

Recommended Use
DISPERBYK-168 is recommended for stabilizing titanium dioxide, organic pigments and carbon blacks in radiation-curable adhesive systems.

Incorporation and Processing Instructions

  • For optimum performance, the additive must be incorporated into the millbase before addition of pigments.
  • The resin and solvent components of the millbase are pre-mixed and then the additive is slowly incorporated while stirring continuously.
  • Do not add the pigments until the additive has been fully distributed.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Flash Point100°C-
SolventsDicarboxylic Acid Ester--
Non-Volatile Matter (20 min, at 150°C)30%-
Density (at 20°C)1.1g/ml-
Amine Value10.5mg KOH/g-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Auto Ignition Tempertauremin. 200°CDIN 51794
Flash Point100°CPensky-Martens
Initial Boiling Point200°CDerived
Melting Pointmax. 5°CDerived
Density (at 20°C)1.11g/cm³Oscillating U-tube
Vapour Pressure (at 20°C)max. 1hPaDerived
AppearanceLiquid--
ColorYellow--
Flammability (liquids)Sustains Combustion--
Immiscible InWater--
OdorEster-like--
pH (at 20°C, Concentration: 1%)6-Universal pH-Value Indicator
Special Note
  • The treatment of some organic pigments can negatively influence the effectiveness of the additive.
  • In these cases, tests with the untreated pigment of the same type may be successful.
Composition Data

Solution of a high molecular weight block copolymer with pigment affinic groups

Regulatory & Compliance

OEM Specifications

Storage & Handling

Storage Information

Mix well before use. Separation or turbidity may occur at temperatures below 5 °C. Warm to 20 °C and mix well.