Solvent-free, polysiloxane based defoamer and air release agent, VOC-free

  • Characteristic Data

    Appearancemilky white liquid
    Non-volatile contentMin. 98 % ISO 3251
    (1g, 1h, 125 °C)
    Density1.01 – 1.05 g/ml ISO
    2811-3 (25 °C)
    Viscosity210 – 290 mPa.s
    ASTM D 1638 (25 °C)
    Flash point250 °C
    Refractive indexNA

  • Features

    • Improves film gloss, substrate wetting, color strength in
    pigmented systems
    • Avoids microfoam formation during manufacturing
    • Easy to emulsify in water
    • Should be used in grinding step, but can also be adding
    in let-down or post-add
    • Supports quick air release of entrapped air in the
    surface during application
    • VOC-free

  • Applications

    • Coatings based on
    Water soluble alkyds
    Straight and vinyl acrylates
    Hydroxyl-bearing polyacrylates

  • Dosage

    The recommended dosage is 0.05 – 1.50 % Borchers® AF 1171 to the total weight of the formulation depending upon the
    binder system and which property is being addressed. The exact dosage should be experimentally determined. In
    pigmented systems, 2/3 of the defoamer portion should be added to the grind and 1/3 to the letdown.

  • 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. Separation may occur, mix well before use.

  • 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
  • China : IECSC
  • Korea : ECL
  • Taiwan : NECI