Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Solvay Rhodoline DF 581B Mineral Oil Defoamer Surfactant

Solvay Rhodoline DF 581B is a high-performance mineral oil-based defoamer surfactant from Solvay’s Rhodoline DF series, engineered for rapid foam suppression and long-term stability in demanding industrial processes like coatings, inks, and chemical manufacturing. It combines refined white mineral oil with hydrophobic silica and optimized silicone-free emulsifiers for excellent compatibility and low dosage efficiency.
  • solvay rhodoline df 581b mineral oil defoamer surfactant_c69650e2
  • solvay rhodoline df 581b mineral oil defoamer surfactant_c69650e2

Features Of Solvay Rhodoline DF 581B Mineral Oil Defoamer Surfactant

  1. Highly effective mineral oil-based defoamer with synergistic surfactant system for rapid foam collapse.

  2. Excellent compatibility with aqueous systems including alkaline, neutral, and mildly acidic formulations.

  3. Low dosage requirement ensures cost efficiency and minimal impact on final product properties.

  4. Thermally stable up to 80 °C, supporting use in warm-process industrial applications.

  5. Non-silicone formulation avoids residue, coating interference, or downstream contamination issues.

Typical Applications Of Solvay Rhodoline DF 581B Mineral Oil Defoamer Surfactant

  1. Water-based paints and coatings manufacturing.

  2. Industrial cleaning formulations (CIP, detergents, degreasers).

  3. Textile processing auxiliaries (scouring, dyeing, finishing baths).

  4. Agrochemical adjuvant systems and spray tank mixtures.

  5. Paper and board coating processes.

Specifications Of Solvay Rhodoline DF 581B Mineral Oil Defoamer Surfactant

Chemical TypeMineral oil-based defoamer with non-ionic surfactants
Product FormOpaque white to off-white liquid emulsion
AppearanceHomogeneous, pourable liquid
pH (1% aqueous dispersion)6.0 – 7.5
Specific Gravity (20 °C)0.94 – 0.98 g/cm³
Viscosity (25 °C)150 – 300 mPa·s (Brookfield LV, spindle #3, 60 rpm)
Primary ApplicationsDefoaming in water-based industrial formulations
Key FeaturesRapid knockdown, broad compatibility, non-silicone


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