TIB KAT 425

TIB KAT 425 – Liquid dioctyltin oxide catalyst for silicone and silane systems

TIB KAT 425 is a liquid catalyst based on a dioctyltin oxide formulation and is used in a wide range of silicone-based applications.

TIB KAT 425 is particularly suitable for curing:

• 1-component MS silyl systems
• alkoxy-based RTV silicones
• oxime-based RTV silicones

Properties & advantages

• Acts reliably as a polymerization and crosslinking catalyst
• Offers good hydrolytic stability under typical humidity conditions
• Due to its octyl-based structure, it exhibits improved moisture resistance compared to comparable butyl-based tin catalysts such as TIB KAT 437 and TIB KAT 438
• The silane contained acts as a non-reactive diluent, leaving the catalyst efficiency unchanged

Handling

• Stability may decrease at elevated humidity → risk of hydrolysis
• Keep contact with moisture to a minimum