RHEOBYK L 1400 VF is a VOC-free associative thickener (HEUR) for aqueous systems, designed to create Newtonian flow behavior. It is compatible with alkyds, epoxies (EP), acrylates, and polyurethanes (PU). Ideal for paper and wood coatings, this liquid product offers excellent processability, brushability, and reduced spattering. It is easy to handle and suitable for wood surfaces.

Chemical Family: Polyurethanes (PU)

Labeling Claims: Volatile Organic Compound (VOC)-free

Compatible Polymers & Resins: Acrylates, Acrylonitrile Styrene Acrylate (ASA), Alkyds, Epoxies (EP), Polyurethanes (PU)

Physical Form: Liquid, Solution

Features: Brushability, Excellent Processability, Reduced Spattering

Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Markets
Applications
Application Area
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Coating End Applications
Use Level
1.0 - 3% (Coatings Industry), 0.5 - 3% (Paper Coatings)
Coatings Industry Application

Special Features and Benefits
As a result of the Newtonian flow behavior, RHEOBYK-L 1400 VF has only a negligible impact on the low shear range and improves or increases the brushability. The additive also reduces spattering during application. Greater layer thicknesses can be achieved along with an excellent balance between the flow properties and leveling. The additive is liquid and therefore easy to handle. It is not necessary to adjust the pH value or control the temperature during incorporation. When combined with rheology additives which are effective in the low shear range, such as the RHEOBYK-H series, it enables an optimum processability.

Recommended Use
RHEOBYK-L 1400 VF is preferably used in emulsion paints and coatings that are based on acrylate, styrene acrylate and vinyl acetate copolymer binders as well as in PU and alkyd emulsions and epoxy dispersions.

Recommended Levels
|1.0-3% additive (as supplied) based upon the total formulation, depending on the properties of the formulation to be achieved.
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.

Incorporation and Processing Instructions
Addition under stirring ensures optimum distribution and the best possible effectiveness and reproducibility in applications.
RHEOBYK-L 1400 VF is suitable for adding to the millbase as well as to the letdown product, or as a post additive to retroactively adjust the rheological properties.

Paper Coatings

Special Features and Benefits
In paper coatings, RHEOBYK-L 1400 VF develops a considerable Newtonian flow behavior, thus very efficiently increasing the viscosity in the high shear range. This enables the adjustment of a flat rheology profile across a broad shear range.

Recommended Use
The additive is compatible with all paper coating systems and can be used in association with all application techniques.

Recommended Levels
0.5-3% additive (as supplied) based upon the total formulation, depending on the properties of the formulation to be achieved.
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.

Incorporation and Processing Instructions
The additive can be incorporated to adjust viscosity after production of the coating system with low to medium shear forces (post-addition).

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
pH Value7 - 9--
SolventsWater--
Density (at 20°C)1.04g/ml-
Active Substance20%-
Volatile Organic Compounds - Freemax. 1500ppm-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Auto Ignition Tempertauremin. 200°C-
Boiling Point100°CDerived
Melting Point0°CDerived
Density (at 20°C, 1013 hPa)1.04g/cm³Oscillating U-tube
Vapour Pressure (at 20°C)23.4hPaDerived
Dynamic Viscosity (at 20°C)8254mPa.sP/K 20°C
AppearanceAqueous solution--
ColorOff-white--
Flammability (liquids)Will not burn--
OdorOdorless--
pH (at 20°C, Concentration: 100%)6.5 - 9.5Universal pH-Value Indicator
Soluble inWater--
Composition Data

Solution of a polyurethane

Regulatory & Compliance

OEM Specifications

Storage & Handling

Storage and Transportation

Mix well before use. Transport and store in a dry place, in an unopened original container, at temperatures between 5 °C and 35 °C.