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A pigment dispersion’s success is determined by understanding its color performance in paint, coating, and ink formulations. Aspects of color performance include chroma, hues, transparency, and opacity.

In order to fully understand a dispersion’s color performance, one must assess its dispersion properties. These include viscosity, particle size, and compatibility. The pigment surface wetting ability and dispersion stability of wetting and dispersing agents directly impact these properties.

Borchi^® Gen wetting and dispersing additives were designed to enhance pigment surface interaction stability. These dispersants work in various pigment types and systems. High and low molecular weight options are available.

However, there are many kinds of pigment dispersants and wetting agents to choose from. Thus, selecting the right ones for your specific pigment formulations can be challenging.

 

Borchi Gen high molecular weight wetting and dispersing agents for pigments

High molecular weight wetting and dispersing agents are available for organic and inorganic pigments.

Dispersing additive highlights for organic and carbon black pigments

Borchi Gen 0851 is a 50% active VOC-free and APEO-free dispersant. This additive is excellent for use in waterborne coating formulations with organic pigments. It provides low viscosity dispersions, good transparency, and long-term dispersion stability. Borchi Gen 0851 offers great color development in a wide range of resin systems. Furthermore, it provides high jetness in carbon black pigment formulations.

 

Borchi Gen 0851 for waterborne systems provides excellent color development in a variety of organic pigment grinds

 

Borchi Gen 0451 is a 100% active VOC- and APEO-free solution. This dispersant can be used in waterborne and solvent borne systems with organic pigments. It provides low viscosity dispersions, good transparency, and long-term dispersion stability.  Borchi Gen 0451 provides high jetness in carbon black pigment formulations.

Organic blue, green, and red pigments

Borchi Gen 1051 is a 45% active organic pigment dispersant that offers low viscosity dispersions. This additive provides high transparency and long-term dispersion stability in solvent borne systems.

 

Higher transparency is achieved with Borchi Gen 1051 in a Pigment Red 177 formulation for an automotive OEM application

 

Color stability is improved in organic pigments with Borchi Gen 1051

 

Dispersing additive highlights for inorganic pigments

Transparent iron oxide pigments

Borchi Gen 1750 is a VOC-free, 40% active dispersant for waterborne systems. Benefits of this additive include small particle size dispersions for transparent iron oxides. Additionally, this solution could be used with titanium dioxide (TiO₂). It can also be used with other inorganic pigments and fillers.

When combined with Borchi Gel PN or Borchi Gel NA rheology modifiers, settling is not observed. This is the case even with high concentrations of pigments and lower viscosity dispersions.

 

Small pigment particle sizes with Borchi Gen 1750 help achieve higher transparency in transparent iron oxide pigments

 

Low viscosity grinds with high pigment load with the use of Borchi Gen 1750 in transparent iron oxide pigment formulations

 

TiO₂ and iron oxide pigments

Borchi Gen 1252 is a 100% active VOC- and APEO-free dispersant for waterborne, solvent-free, and solvent-based systems. This dispersant provides high tint strength and strong contrast ratios with TiO₂ and other inorganic pigments. It also has a strong affinity to iron oxide pigments. This results in stable dispersions with excellent color development.

Over 70 % titanium dioxide and 60 % iron oxide pigment loadings are possible with free-flowing viscosities. Borchi Gen 1252 can also achieve long-term dispersion stability with Borchi Gel PN.

 

Borchi Gen 1252 dispersant and Borchi Gel PN rheology modifier provide low viscosity and prevent pigment settlement in TiO₂ pigment formulations

 

Bismuth vanadate (PY 184) pigments

Borchi Gen 1757 is a 100% active pigment dispersant and wetting agent for excellent stabilization. This VOC-free additive is good with high loading in waterborne and solvent borne bismuth vanadate pigment concentrates. Using Borchi Gen 1757 produces great color and opacity.

Furthermore, formulations with Borchi Gen 1757 and Borchi Gel PN together provide a number of benefits. These include low viscosity pigment dispersions, better pigment wetting, and reduced settling. They also provide long-term stabilization of dense inorganic pigments.

 

Higher b* value indicates a brighter yellow color in bismuth vanadate pigments with Borchi Gen 1757 and Borchi Gel PN

 

Lower viscosity with Borchi Gen 1757 and Borchi Gel PN in bismuth vanadate pigment formulations

 

Borchi Gen low molecular weight wetting and dispersing agents for pigments

Several low molecular weight wetting and dispersing agents are available. These solutions are cost-effective dispersing agents for pigments and extenders used in universal pastes.

 

Organic, inorganic, and zinc oxide pigments

Borchi Gen 0650 is a 100% active, APEO-free wetting and dispersing agent. Waterborne, solvent borne, and universal pigment concentrates are suitable for this additive. Borchi Gen ND is also a viable dispersing agent for these pigments.

Organic and carbon black pigments

Borchi Gen WNS (90% active) is an APEO-free additive. Emulsion paints and universal pigment pastes are suitable for this dispersing agent.

Inorganic, extender, and organic pigments

Borchi Gen 12 is a 100% active, APEO- and VOC-free dispersant. This solution is broadly compatible with waterborne and solvent borne alkyd, epoxy, and stoving coatings. Additionally, this dispersing additive can be used in solvent-free systems.

 

Conclusion

Borchi Gen dispersing and wetting agents improve performance in a wide variety of pigment dispersions. These additives improve color development, viscosity stability, and transparency. They also reduce pigment settlement. Solutions are available for improved dispersing processes in waterborne and solvent borne systems.

Borchi Gen dispersants are specially designed for specific pigment types and systems. Therefore, you can more easily choose the right dispersant in a shorter amount of time.

 

For more information on our full line of dispersants, please visit our wetting and dispersing agent page or download our wetting and dispersing agent product guide.

For technical questions or to request a sample, please contact [email protected].