Rheology Modifier Promoting Pigment Wetting and Stabilization

Borchi® Gel L 75 N is a polyurethane-based, non-ionic liquid rheology modifier that promotes good pigment wetting and stabilization and is VOC-, APEO-, and organo tin-free. It is a HEUR thickener that develops viscosity stability in water-based coatings, mainly in the medium shear range. However, Borchi® Gel L 75 N can also provide well-balanced efficiency in high shear ranges. Typically, the shear range is between 1000 s-1 to 10000 s-1 depending upon the binder type and other ingredients in the coating.


Benefits of Rheology Modifiers for Good Pigment Wetting and Stabilization

Along with promoting efficient pigment wetting and stabilization, Borchi® Gel L 75 N has a variety of additional benefits. These include the promotion of flow and leveling, sag prevention, and the ability to not cause yellowing or chalking in the cured film.

Other HEUR Thickeners from Borchers

Low Shear

Medium Shear

High Shear



Borchi® Gel L 75 N can be used in universal applications for brush and roll. This solution is known to be especially effective in anti-corrosive coatings.

  • Physical Characteristics

    AppearanceLiquid, yellow
    Non-volatile content48 – 52 % ISO 3251 (1g, 125 °C, 1h)
    pH6 – 8
    Density1.08 g/cm3 DIN 51757 (20 °C)
    Viscosity5000 – 9000 mPa.s (23 °C) ISO 3219 (Appendix A)

  • Features

    • Develops viscosity stability in water-based coatings mainly in the medium shear range
    • Improves rheological properties of water-based coatings systems for easier brush and roller application
    • Does not yellow or cause chalking in the cured film
    • VOC-free
    • APEO-free
    • Organo tin-free

  • Applications

    • Coatings
      • Acrylic gloss
      • Anti-corrosive
    • Small particle size emulsions

  • Dosage

    • 0.1 – 2.0% on total paint formulation

    Gloss paints may require a higher amount. The exact dosage should be experimentally determined. The thickening action of Borchi® Gel L 75 N may be reduced by polar, water soluble film forming solvents such as alcohols, glycols and glycol ethers. However, low polar solvents such as butyl diglycol acetate and Texanol® will increase the viscosity effect.

  • 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 :
  • Europe : EINECS
  • Switzerland : EINECS
  • USA : TSCA
  • Canada : DSL
  • Australia : AICS
  • New Zealand : NZIoC
  • China : IECSC
  • Japan : ENCS
  • Korea : ECL
  • Taiwan : NECI
  • Philippines : PICCS