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

BYK DISPERBYK-118 Wetting Dispersans Agents

BYK DISPERBYK-118 is a high-polarity copolymer Wetting Dispersans Agents designed for solvent-based coatings and inks. It uniquely stabilizes all titanium dioxide variants (acidic/neutral/alkaline-treated) while enhancing inorganic pigments, fillers, and effect pigments. The linear polymer structure with pigment-affinic groups ensures viscosity reduction and long-term stability without compromising metal adhesion

Effect of BYK DISPERBYK-118 Wetting Dispersans Agents

  1. Universal TiO₂ Stabilization - First dispersant to effectively stabilize all surface-treated titanium dioxide types 

  2. Multi-Pigment Compatibility - Works with inorganic pigments, transparent iron oxides, and effect pigments 

  3. Process Enhancement - Reduces grinding viscosity by 40-60% for higher pigment loading 

  4. Optical Improvement - Increases gloss while minimizing haze in final coatings 

  5. Adhesion Preservation - Maintains metal substrate bonding strength in direct-contact coatings

Typical Applications of BYK DISPERBYK-118 Wetting Dispersans Agents

  1. Industrial Coatings - High-gloss machinery finishes with TiO₂/extenders

  2. Automotive Refinish - Metallic basecoats requiring color consistency

  3. Wood & Furniture Coatings - Nitrocellulose lacquers with improved flow

  4. Pigment Concentrates - High-load dispersions (up to 90% carbon black)

  5. Architectural Coatings - Exterior paints with enhanced weather resistance

Technical Data of BYK DISPERBYK-118 Wetting Dispersans Agents

Chemical BasePhosphoric ester salt copolymer
Recommended LoadingInorganics 10-15%, organics 30-40%, carbon black 20-50%
Solvent SystemPropylene glycol methyl ether acetate (PMAc)
Thermal StabilityUp to 150°C processing
Shelf Life60 months (unopened)


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