Achieving superior pigment dispersions in coatings helps ensure excellent wetting, grind times, and color strength. Optimal dispersions enable small particle sizes and therefore good storage stability in final formulations.
Selecting the right dispersing agent for the pigments and systems you’re working in is crucial for wetting and stabilizing pigments effectively.
However, while dispersing agents are crucial for excellent pigment performance, the use of these additives can compromise corrosion protection properties in waterborne coatings.
This blog highlights Borchi® Gen 1750, a versatile wetting and dispersing agent for a variety of pigments and binders. We will explore how this solution can ensure the stabilization of pigments without impacting corrosion protection. We will also highlight the color strength performance of this dispersant compared to competitive additives.
Understanding pigment dispersion is essential for achieving optimal aesthetics in your coatings. Wetting and dispersing agents are critical components that make up the dispersion process, supporting pigment stabilization.
Pigment stabilization is crucial for maintaining the quality of coatings over time. Stabilization prevents flocculation, where pigments clump together, leading to uneven color and texture.
Wetting agents play a vital role in ensuring that pigments are properly incorporated into coatings. They lower the surface tension between the pigment particles and the liquid medium, facilitating better contact.
Dispersing agents are central to the pigment dispersion process. They help break down pigment agglomerates, ensuring a uniform distribution within the medium. The right dispersing agent can significantly enhance color strength and gloss.
When selecting wetting and dispersing agents, several factors need to be considered based on the other elements in a coating formulation:
Finding a versatile additive that can be used for the wetting and dispersing of pigments in a variety of coating formulations is a great find for a formulator’s toolbox.
While achieving superior pigment dispersion is a primary goal, maintaining corrosion protection is equally important.
Pigment dispersants are integral to the coating process, but they have been known to hinder corrosion protection properties in waterborne coatings.
Over the years, formulators have been switching from solventborne coatings to waterborne for a few reasons. These include:
In waterborne coatings, dispersants may negatively impact corrosion resistance due to the “wetting” nature of these additives. As a result, water may penetrate into the film of a coating, reducing its ability to protect against corrosion formation.
Borchi Gen 1750 is a versatile wetting and dispersing agent that can be used with various waterborne binders. This additive can provide small particle size dispersions and low viscosity grinds.
Our team found excellent results with color strength and reduced impact on corrosion protection in organic and inorganic pigment blends.
Download starting point formulations featuring these results and more
Ensuring coatings offer robust corrosion resistance is vital for long-term protection. The right combination of materials and techniques can enhance this property, especially when used with solutions like Borchi Gen 1750 that don’t hinder corrosion protection.
While wetting and dispersing agents are essential for pigment wetting and stabilization, their “wetting” function may negatively impact corrosion protection in waterborne coatings.
Borchi Gen 1750 is a wetting and dispersing agent that can stabilize pigments with reduced impact on corrosion protection. As a versatile additive for a variety of pigments and binders, this dispersant is a critical additive to have in your formulation toolbox.
For more performance results and starting point formulations with Borchi Gen 1750, please visit the product page.
You can also contact our team.
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