Tin-free catalyst for solvent-based two-component polyurethane coatings

  • Physical Characteristics

    Metal ContentBi, Zn
    Non-volatile contentNA
    ViscosityMax. 8000 mPa·s
    ISO 3219 (A) (20
    Specific gravityNA
    Density1.19 – 1.25 g/cm³
    DIN 51757 (20 °C)

  • Features

    • Non-hazardous replacement for other polyurethane
    catalysts, especially for tertiary amines and DBTL
    • Accelerates the chemical reaction between the alcohol and
    isocyanate component of polyurethane coating systems,
    thus allowing optimum steering of the drying properties
    • Ensures fast blocking stability
    • Reduced yellowing
    • Higher film hardness

  • Applications

    • Solvent-based two-component polyurethane clearcoats
      • Automotive Refinish

  • Dosage

    Our experience has shown the recommended addition rate of Borchi® Kat 0244 to be between 0.01 and 0.03 % product,
    calculated on solid binder. The exact amount depends on the used binder and should be determined by means of
    preliminary trials. Borchi® Kat 0244 can be added as supplied or solved in any suitable solvent (e.g. 10 % in xylene) to the
    polyol component of the coating system. The solution has to be homogenized by stirring. Borchi® Kat 0244 is also soluble in
    polar solvents and solvents of medium polarity. However, these solutions are only stable for a limited period of time.

  • Storage

    Protect from the effects of weathering and store at temperatures below 50 °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, EU - REACH (Registered)
  • Switzerland : EINECS
  • Norway : +
  • USA : TSCA (Zn2EH - CAS no. 136-53-8)
  • Canada : DSL
  • Australia : AICS
  • New Zealand : NZIoC
  • China : IECSC
  • Japan : ENCS/METI
  • Korea : ECL
  • Taiwan : NECI
  • Philippines : PICCS