In February 2026, the characteristics and application systems of water-based and oil-based T-12, a core polyurethane catalyst in the chemical industry, were clearly defined. Both take dibutyltin dilaurate as the core component and have become important curing accelerators in coatings, adhesives and other industries due to their high catalytic activity.
    It is reported that the core component of T-12 is an organometallic compound with the chemical formula C32H64O4Sn, with a tin content of 18%-19% and a flash point of over 204℃, which can effectively promote the cross-linking reaction of polyols and isocyanates. Oil-based T-12 is an oily liquid suitable for solvent-based systems, and adding 0.01%-0.5% to furniture paint and automobile refinish paint can accelerate the drying of the paint film. Water-based T-12 is made into an aqueous emulsion through emulsification technology, which can be uniformly dispersed in aqueous systems and is suitable for water-based coatings, leather finishing agents and other products.
    The catalyst still works at an addition amount as low as 0.1pphp, and can achieve rapid curing when combined with amine catalysts. However, it is easy to hydrolyze and needs to be sealed and stored at 10-30℃. The industry suggests selecting the corresponding type according to the application system, determining the optimal addition amount through experiments, and its catalytic effect will be more significant in low-temperature seasons.

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