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Silicones from Dow Corning
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Power Up Your Solvent Based Paints, Coatings and Inks with Improved Formulation Stability and Color Consistency

Dow Corning 3 Additive
Power Up

Cost-effectively prevent flooding and floating in white, gray and pastel formulations with an innovative silicone dispersant additive from Dow Corning

Compatibility of pigments in solvent based paints can be an issue to the formulator. TiO2 and colored pigments can separate in-can, leading to pigment floating. The concentration and separation of pigments on drying also can result in inconsistent color performance on application. Are these two attributes important to you?

Then consider Dow Corning® 3 Additive. At very low concentrations, this silanol functional silicone resin effectively prevents the flooding and floating of solvent based formulations, particularly for whites (titanium dioxide based), grays and pastel shades with a good cost-in-use compared to competitor products. Targeted applications and markets for Dow Corning® 3 Additive include producers of wood coatings, protective coatings, industrial coatings, automotive OEM and refinish paints, printing inks, and pigment pastes.

Advantages of Dow Corning® 3 Additive

  • Prevents flooding and floating for improved color consistency
  • Can be used in a wide range of pastel and gray solvent based resin systems
  • Highly effective at low concentrations for good cost-in-use versus the competition
  • Multi functional additive that also improves leveling for simplified formulation
  • Can be added in pigment grind or during let-down for formulating flexibility
  • Low viscosity for easy incorporation
  • Low VOC content at the recommended use levels (typically <0.01 g/l)

Effective Prevention of Flooding and Floating

Dow Corning® 3 Additive is most effectively used in the grind phase when dispersing TiO2 in white base paints. A silanol functional silicone resin, Dow Corning® 3 Additive offers an alternative chemistry to market for dispersant technology and has been shown to be highly effective versus existing market solutions.

Figure 1: Floating (in-can observation) and flooding (rub-out results) with Dow Corning® 3 Additive versus competitor dispersants in a solvent based 2K PU gray wood coating. All additives added during grinding of base white coating.

Floating and flooding with Dow Corning® 3 Additive versus competitor dispersants at the same addition level

Competitor 1: 50 percent actives modified polyurethane; Competitor 2: 50 percent actives unsaturated polycarboxylic acid polymer + polysiloxane copolymer; (ΔE): the color difference between the rubbed and unrubbed surfaces of a freshly applied film on a LENETA chart.

Excellent Efficiency for Low Cost-in-Use

The unique chemistry of Dow Corning® 3 Additive also enables it to be highly effective at very low dosage levels. In fact, Dow Corning® 3 Additive performs more effectively at preventing flooding and floating than competitive materials at less than half the addition level.

Figure 2: Floating (in-can observation) and flooding (rub-out results) in a solvent based 2K PU gray wood coating. Dow Corning® 3 Additive is compared to competitor dispersants at lower addition levels in grind.

Floating and flooding with Dow Corning® 3 Additive versus competitor dispersants at varying addition levels

Competitors as described in Figure 1.

The recommended dosage of Dow Corning® 3 Additive is 2-10 weight percent of the titanium dioxide used when dispersing TiO2 in white base paints (or 0.2-1 weight percent of a total formulation containing 10 percent TiO2). Concentrations ranging from .05-0.5 weight percent based on the total formulation are effective when Dow Corning® 3 Additive is used in the “co-grind” of titanium dioxide.

Flexibility with Post-Addition Performance

Although most effective in the grind stage, Dow Corning® 3 Additive also can be post-added at levels as low as 0.03 percent by weight in the total formulation to improve flooding and floating beyond traditional dispersants on the market today.

Figure 3: Floating (in-can observation) and flooding (rub-out results) in a solvent based 2K PU gray wood coating. Improvements are demonstrated by post-adding Dow Corning® 3 Additive and Competitor 2 at the addition levels indicated.

Floating and flooding with post-addition of Dow Corning® 3 Additive versus a competitor dispersant

Competitors as described in Figure 1.


Dow Corning® 3 Additive Product Information Sheet (PDF)
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