The Universal Selection Source: Coatings Ingredients

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Rhodoline® high performance dispersants have been designed for the fomulation of water-based colorants used in Architectural, Industrial & Ink applications. These additives help producers to develop more sustainable products (removal of Glycols and other VOCs) with a high level of performance.


Is the Rhodoline® 3000 series suitable only for organic pigments dispersion?

The Rhodoline® 3000 Series of dispersants are primarily recommended for dispersion of carbon blacks and other organic pigments used in water-based colorants. The Rhodoline® 4000 series are recommended for use as co-dispersants for the dispersion of inorganic pigments such as red and yellow iron oxides.

Are all the Rhodoline® 3000 dispersants APE-free? Can they be used to develop sustainable water-based colorants?

The Rhodoline® 3000 Series of dispersants are APE-free. Some of the Rhodoline® 3000 Series dispersants can be used to prepare pigment dispersions that are Ecolabel compliant.

Which Rhodoline® grade is recommended for the formulation of Colorants used in Architectural coating applications? And what is the recommended usage level?

Rhodoline® 3100, 3200, 3300, 3400 and 3500 can all be used to make pigment dispersions for Architectural and Industrial coating applications. Based on data developed in the lab, Rhodoline® 3100 and Rhodoline® 3500 gave the best results.

For Industrial water-based applications, Rhodoline® 3500 is the preferred dispersant of choice and for conductive carbon blacks, Rhodoline® 3700.

Why can we get an overall improved process efficiency using Rhodoline® dispersants?

Rhodoline® 3000 series of dispersants do allow for higher pigment loading while still maintaining a low processing viscosity. In a laboratory study conducted with an architectural grade carbon black pigment (Raven 1170), Rhodoline® 3100 was efficient at dispersing a 45% loading of the carbon black while an industry standard dispersant could only process a 35% loading, while still maintaining an acceptable processing viscosity.

Do Rhodoline® 3000 products help to maintain storage stability of pigment concentrates over longer time periods?

The Rhodoline® 3000 series of dispersants do help to maintain the storage stability of pigment concentrates over longer time periods. In laboratory studies conducted on carbon blacks and organic pigments, the Rhodoline® 3100, 3500 and 3700 dispersants provided better heat aged viscosity stability compared to leading industry dispersants.

What is the compatibility of the pigment concentrates containing Rhodoline® 3000 dispersants with different coating systems after enduring longer storage time?

Pigment dispersions made using Rhodoline® 3000 Series of dispersants do maintain their ability to exhibit excellent color compatibility, color development and color strength after enduring longer storage times.

What are the results in terms of color acceptance in tinted systems when using Rhodoline® 3000 dispersants?

Based on work done in the laboratory, carbon black and organic pigment dispersions made with Rhodoline® 3000 series dispersants gave excellent color acceptance, color development and color strength when used in water-borne coatings.

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