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

BYK-220S Wetting Dispersing Agents

BYK-220S is an organosilicon-based Wetting Dispersing Agents designed for solvent-based coatings and ambient-cure plastic systems. This additive enhances pigment stabilization through controlled flocculation while improving surface smoothness and flow characteristics. Its unique formulation integrates polysiloxane copolymers for superior matting agent and aluminum flake orientation in industrial applications

Effect of BYK-220S Wetting Dispersing Agents

  1. Flocculation Control - Forms 3D pigment networks to prevent floating/flooding

  2. Surface Optimizer - Combines slip and leveling properties via polysiloxane technology

  3. Viscosity Reducer - Lowers grinding paste viscosity for higher pigment loading

  4. Universal Stabilizer - Effective for inorganic/organic pigments and fillers

  5. Process Adaptor - Compatible with ambient-cure resins (UP, PU, epoxy)

Typical Applications of BYK-220S Wetting Dispersing Agents

  1. Industrial Coatings - Machinery/equipment finishes with high gloss

  2. Architectural Paints - Exterior wall coatings with anti-settling properties

  3. Plastic Composites - UP/EP resin systems for SMC/BMC molding

  4. Metallic Finishes - Aluminum flake orientation in automotive coatings

  5. Gel Coats - Pigment stabilization for marine/construction applications

Technical Data of BYK-220S Wetting Dispersing Agents

Base ChemistryModified polysiloxane copolymer
Recommended Loading0.5-1.5% (resin), 3-16% (pigments)
Thermal Stability>200°C autoignition point
Solvent SystemAlkylbenzene carrier
Storage ConditionsStable at ambient temperature


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