Dispersant for Bismuth Vanadate Pigments

Borchi® Gen 1757 is a VOC-free dispersant that improves bismuth vanadate pigment dispersions in water- and solvent-based systems. Also known as C.I. Pigment Yellow 184 from Colour Index International, bismuth vanadate is a yellow inorganic pigment that forms from a reaction of bismuth nitrate and sodium vanadate.

 

Benefits of Dispersants for Bismuth Vanadate Pigments

Benefits of our Borchi® Gen 1757 dispersant for bismuth vanadate include enhanced color development, superior opacity, higher b* value than market leading dispersants, and lower viscosity at high pigment loading (which, in turn, provides excellent pigment wetting). Storage stability and anti-settling are improved when this dispersing agent is used in combination with our Borchi® Gel PN rheology modifier for low shear thickening in water-based systems.

 

low shear rheology webinar

 

Borchi® Gen 1757 has been tested with various bismuth vanadate pigments, including DCC® Yellow RMXS from Dominion Colour Corp.

 

thixotropic shear thinning rheology modifier for viscosity stability in bismuth vanadate pigment dispersions

Lower viscosity with Borchi® Gen 1757 dispersant indicates excellent pigment wetting

 

Applications

Borchi® Gen 1757 is ideal for use in automotive, architectural, general industrial, and protective and marine coatings.

 

Resources

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Starting Point Formulation

Air Drying One Component Single Layer Formulation with Bahydrol 2592 – for use in black coatings

  • Physical Characteristics

    Appearance Yellow to brownish liquid 
    Non-volatile content 100 % 
    pH 1 – 3 
    Density 1.035 – 1.085 g/cm3 
    Viscosity Max. 1400 mPa.s 
    Solvent(s) NA 

  • Features

    • Borchi® Gen 1757 is a hybrid wetting and dispersing additive, providing a combination of various principles of pigment stabilization in bismuth vanadate pigment dispersions
    • Excellent with high loading bismuth vanadate concentrates
    • Produces vibrant color and superior opacity with a wide range of bismuth vanadate pigments

  • Applications

    • Coatings
      • Architectural
      • General Industrial
      • Automotive
      • Protective and Marine

  • Dosage

    Active on pigment loading:

    • Bismuth vanadate pigments: 10 – 20 %

    The exact dosage for bismuth vanadate pigment dispersions should be experimentally determined through a ladder study. Borchi® Gen 1757 should be added to the mill base before adding the pigment.

  • Storage

    Protect from the effects of weathering and store at temperatures between 5 and 30 °C. Once opened, containers should be resealed immediately after each removal of the product.

  • Safety

    Please refer to our safety data sheet for information relating to product safety.

Registration :
  • USA : TSCA
  • Europe : EINECS
  • Australia : AICS
  • New Zealand : NZIoC
  • China : IECSC
  • Korea : ECL
  • Taiwan : NECI
Wetting and Dispersing Products