Highly reactive tin-free catalyst for one- and two-component polyurethane systems and RTV silicones
Characteristic Data
Metal content Bi: 27.5 – 28.5 % MCI 64-69 Non-volatile content Min. 60 % ASTM D 1644 B Viscosity Max. 800 mPa·s ASTM D 2196 Specific gravity 1.24 – 1.31 ASTM D 1963 Density N/A Features
- Ecologically safe replacement for other polyurethane catalysts, especially for amines and tin-based products like DBTL
- Accelerates the reaction between the polyol and isocyanate component of polyurethane foam systems
- Ensures fast blocking stability
- Earlier solvent resistance and sanding capability
- Higher film hardness
Applications
- Solvent-based pigmented one- and two-component polyurethane coatings
- Automotive Refinish
- General Industrial
- Coil
- Solvent-based pigmented one- and two-component polyurethane coatings
Dosage
The recommended addition rate of Borchi® Kat 320 in polyurethane coatings is according to our experience 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. The optimal addition rate of Borchi® Kat 320 in PU foams and RTV silicone resins is depending on the reactive components and should as well be determined by means of preliminary trials. Borchi® Kat 320 can be added either in the supply form or diluted (e.g. in butyl acetate) to the polyol component of the coating system. Borchi® Kat 320 should not be diluted below 10% of the supply form, since those solutions are only stable for a limited period of time.
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.
- Availability : All , Americas , Asia
- Media : Solvent-based
Registration :
- Europe : EINECS
- Switzerland : EINECS
- USA : TSCA
- Canada : DSL
- Australia : AICS
- New Zealand : NZIoC
- China : IECSC
- Japan : ENCS
- Korea : ECL
- Taiwan : NECI
- Philippines : PICCS
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