TIB KAT 229

TIB KAT 229 – Dioctyltin diacetate for PU, silicone, and polyester chemistry

TIB KAT 229 is an octyl-based organotin with carboxylate functionality. Due to its high tin content (28%) and small ligands, it is one of the most reactive liquid octyltin catalysts. As an octyltin, TIB KAT 229 is a suitable alternative to regulated butyltin products such as TIB KAT 233 (DBTA) and TIB KAT 218 (DBTL) – the latter is classified as SVHC in the EU.

TIB KAT 229 serves as a catalyst for:

• Polyurethane syntheses
• Transesterifications
• Polycondensation of RTV silicone resins & silanes
• Production of polycarbonate-based raw materials

Reactivity & performance

The reactivity of TIB KAT 229 is similar to that of its butyl-based counterpart TIB KAT 233, but TIB KAT 229 is typically slightly slower due to:

• the larger alkyl residue (octyl)
• steric effects
• the slightly lower tin content (28% vs. 33%)

typically slightly slower, although this is highly formulation-specific.

Other properties:

• Slightly moisture-sensitive
• Highly reactive and compatible with many raw material systems
• Clear, liquid formulation, easy to incorporate