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

Solvay Rhodoline 4188 Anionic Wetting and Dispersing Agent

Solvay Rhodoline 4188 is an anionic wetting and dispersing agent from the Rhodoline series, engineered for high-efficiency pigment stabilization in aqueous coatings and inks. It delivers excellent wetting, rapid dispersion, and superior colloidal stability with low foam and broad compatibility across acrylic, styrene-acrylic, and PUD systems.
  • solvay rhodoline 4188 anionic wetting and dispersing agent_08bc745c
  • solvay rhodoline 4188 anionic wetting and dispersing agent_08bc745c

Features Of Solvay Rhodoline 4188 Anionic Wetting and Dispersing Agent

  1. High-efficiency anionic surfactant system optimized for rapid wetting of hydrophobic pigments and fillers.

  2. Excellent dispersion stability in aqueous systems, minimizing re-agglomeration during storage and application.

  3. Low foaming profile suitable for high-shear industrial processes including grinding and spray application.

  4. Compatible with a broad range of anionic, nonionic, and zwitterionic additives across diverse pH ranges (pH 4–10).

  5. Biodegradable formulation aligned with EU Detergents Regulation (EC No. 648/2004) and REACH compliance requirements.

Typical Applications Of Solvay Rhodoline 4188 Anionic Wetting and Dispersing Agent

  1. Water-based architectural coatings and interior/exterior wall paints.

  2. Industrial maintenance coatings including anticorrosive primers and marine finishes.

  3. Pigmented printing inks for flexographic and gravure applications.

  4. Functional pigment dispersions for construction chemicals (e.g., colored mortars and tile adhesives).

  5. Agrochemical suspension concentrates (SC formulations) requiring long-term physical stability.

Specifications Of Solvay Rhodoline 4188 Anionic Wetting and Dispersing Agent

Chemical TypeAnionic polymeric dispersant (modified alkyl aryl sulfonate)
Product FormLiquid concentrate
AppearanceClear to slightly hazy, light amber liquid
pH (1% aqueous solution)6.5 – 7.5
Active Content (wt%)35 – 38%
Density (20°C)1.08 – 1.12 g/cm³
SolubilityCompletely miscible in water; compatible with common co-solvents (e.g., glycol ethers)
Primary ApplicationsWetting & dispersion of organic pigments, inorganic oxides, and functional fillers in waterborne systems


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