Borchi® Gel 0620 is a non-ionic, polyurethane-based rheology modifier for spray application. It is also known as a low shear range associative HEUR thickener for water-based coatings systems. This product contains no emulsifiers, and is tin-, surfactant- and APEO-free. It is 40% active in water/butyl glycol.

Borchi® Gel 0620 develops viscosity stability and pseudoplastic flow behavior. As a rheology modifier for spray application, this solution enables the application of thick layers on vertical surfaces. This solution effectively prevents sagging and does not yellow or cause chalking in cured film. Depending on the type of binder used and the other components of the system, it produces a pronounced shear-thinning flow behavior by means of a non-covalent network with binder particles and pigments.

Applications include industrial and decorative coatings that are applied via spray gun. Borchi® Gel 0620 is suitable for brush and roll application when used with a Newtonian thickener.


  • Physical Characteristics

    AppearanceOpalescent, high-viscous liquid
    Non-volatile content 38.00 – 42.00 % ISO 3251
    (2g, 3h, 105 °C)
    pH4 – 7
    Density1.02 – 1.07 g/cm3 DIN
    53217 (23 °C)
    ViscosityMax. 15000 mPa.s
    ISO 3219(A) (23 °C)

  • Features

    • Develops viscosity stability and improves rheological
      properties mainly in the lower shear range
    • Enables application of thick layers on vertical surfaces
    • Effectively prevents sagging
    • Does not yellow or cause chalking in the cured film
    • APEO-free
    • Tin-free

  • Applications

    • Spray Coatings
      • Industrial
      • Architectural
      • Automotive
    • Brush and roll coatings when used with Newtonian thickener

  • Dosage

    • 0.3 – 0.5 % on total formulation

    The best incorporation method is to add it after the pigment/filler dispersion but prior to being let down. Under low-shear mixing conditions a pre-dilution in water or a mixture of water/propylene glycol may be necessary for complete incorporation. The exact dosage should be experimentally determined.

  • 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. Transport or storage may cause a foam on the surface or a slight phase shift. A homogenization of the product is necessary to recover a normal aspect before use without a negative impact on the effectiveness of the product.

  • Safety

    The product is not subject to the German Regulation on hazardous material and no labelling is required in accordance with the EEC directives. It is not dangerous cargo. Please refer to our safety data sheet for information relating to product safety.

Registration :
  • Europe : EINECS
  • Switzerland : EINECS
  • USA : TSCA
  • New Zealand : NZIoC
  • China : IECSC
  • Japan : ENCS