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Paint and Coatings AdditivesPaint and Coating PigmentsArchitectural CoatingsGreen Technology

New APEO-Free Pigment Grind Surfactant

June 1, 2011
Dow Coating Materials (DCM), a global business unit of The Dow Chemical Company, announces a new addition to its product line of APEO-free surfactants.

Dow Coating Materials (DCM), a global business unit of The Dow Chemical Company, announces a new addition to its product line of APEO-free surfactants. ECOSURF™ LF surfactants are low-foam, high-performance additives for pigment dispersion that offer excellent pigment wetting and color acceptance, plus additional foam control through cloud point defoaming.  

“ECOSURF LF surfactants address the growing need for high performance with low foam, particularly in low-VOC coating formulations and in formulations where APEO-free surfactants are preferred,” says Kendall Justiniano, Strategic Marketing Manager, DCM. “From a performance perspective, ECOSURF LF surfactants compare favorably with our best APEO options, including TRITON™ CF-10 surfactant, for pigment wetting and color acceptance.”

From a process perspective, these surfactants deliver essential low foam properties, adds Justiniano. When matched with the right dispersant, they can also offer additional foam control through cloud point defoaming.

How it Works

Cloud point refers to the temperature at which ethoxylate surfactants become insoluble in an aqueous solution. ECOSURF LF surfactants are initially soluble and offer excellent wetting with low foam during pigment addition. As temperatures during pigment dispersion rise above cloud points, the surfactants become insoluble.

“In this form, ECOSURF LF surfactants stop the creation of additional foam and even help to reduce existing foam,” explains Greg Monaghan, Architectural Coatings Group Leader, DCM. “As the paint batch is finished and temperatures decrease, the surfactants return to a soluble state and contribute to other properties of the coating, such as color acceptance and freeze-thaw resistance.”

Cloud points are characteristic of ethoxylated, nonionic surfactants, but have not been widely used in paint formulating until now, says Monaghan. “Foam becomes more of an issue as formulators lower VOC levels,” he explains. “With ECOSURF LF surfactants, paint formulators can take advantage of a second mechanism for foam control in the pigment dispersion, and we expect this will be particularly useful where paint manufacturers are pursuing low-VOC products.”

The surfactants are also readily biodegradable.(1) For more information about ECOSURF LF Surfactants and other APEO-free options from Dow Coating Materials, visit www.dowcoatingmaterials.com/surfactants. For applications outside of coatings, visit www.dow.com/surfactants.
KEYWORDS: Foam Control Green Technology Low-VOC Pigment Dispersions Surfactants

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Chief Chemist, Corporate

Carl Thompson
January 19, 2015
We are presently using Triton CF-10 in our most popular acrylic emulsion paint. We are looking for an APEO free "green" surfactant to replace it. Which Ecosurf LF would you recommend? How soon could we get a sample?

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