Enhanced TDS
Identification & Functionality
- Carrier
- Chemical Family
- Manufactured By
- CASE Ingredients Functions
- Industrial Additives Functions
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Application Area
- Coating End Applications
- Industrial Additives End Use
- Use Level
- 0.3 - 1.5% (Coatings Industry - Prevent Settling), 0.3 - 3% (Coatings Industry - Prevent Sagging)
- Application Information
Coatings Industry
Special Features and Benefits
After being stirred into the coating system, the additive generates a three-dimensional network structure. The resulting thixotropic flow behavior is highly suited for preventing sedimentation and syneresis and increasing the anti-sagging properties without impairing leveling. The additive is liquid and therefore easy to handle. It is not necessary to specifically adjust the pH value or control the temperature during incorporation.
Recommended Use
RHEOBYK-420 is preferably used as an anti-settling additive to produce aqueous pigment, filler and matting agent concentrates. The additive's excellent shear thinning effect is advantageous for dosing such concentrates because of their low viscosity. In addition it is suitable for controlling the thixotropic flow behavior and to optimize the anti-sagging properties and leveling.Recommended Levels
0.3-1.5% additive (as supplied) based on the total formulation to prevent settling.
0.3-3% additive (as supplied) based on the total formulation to prevent sagging.
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
Incorporation and Processing Instructions
Addition into the millbase ensures optimum distribution and therefore the best possible effectiveness and reproducibility in applications. It is not necessary to specifically control the temperature or adjust the pH value. The additive is suitable for adjusting the viscosity afterwards by incorporating it as a post-additive. If the use as a post-additive causes the product to appear non-homogeneous, typical co-solvents can be used to improve the homogeneity.
Special Note
As the additive contains chloride ions, we recommend testing the corrosion properties of the manufactured coatings for contact with metal and to store the coatings in plastic containers or containers with interior coating to prevent corrosion in metal containers. In the cured coating, however, no negative impact on its corrosion protection has been found.
Properties
- Physical Form
- Typical Properties
Value Units Test Method / Conditions Density (at 20°C) 1.12 g/ml - Active Substance 52 % - Flash Point 95.0 °C - Solvent n - Methylpyrrolidon - - - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Lower Explosion Limit 1.3 %V Upper Explosion Limit 9.5 %V Auto Ignition Tempertaure min. 200 °C M0062, Analytics Wesel Flash Point 95 °C Pensky-Martens Initial Boiling Point 203 °C Derived Melting Point max. 0 °C Derived Density (at 20°C) 1.12 g/cm³ Oscillating U-tube Vapour Pressure (at 20°C) max. 1 hPa Derived Appearance Liquid - - Color Light yellow - - Flammability (liquids) Sustains Combustion - - Miscible in Water - - pH (at 20°C, Concentration: 10%) 5 - Universal pH-Value Indicator - Note
We recommend using RHEOBYK-410 for medium and RHEOBYK-411 for low-polarity, non-aqueous systems.
- Composition
Solution of a modified urea
Regulatory & Compliance
- OEM Specifications
Storage & Handling
- Storage Conditions
Moisture sensitive. Store dry. Slight turbidity of the material that occurs during storage has no influence on the rheological effectiveness. The specified storage stability upon dispatch applies when the product is handled correctly and stored in unopened original containers.