| Name | Dibutyltin Dilaurylmercaptide |
| Formula | C32H68S2Sn |
| CAS No. | 1185-81-5 |
| Molecular weight | 635.72 |
| Appearance | Amber liquid |
| Sn Content (Purity) | Min. 98.0% |
| Volatile Content | Max. 0.3% |
| Flash Point | 121℃ |
| Specific Gravity at 25℃ | 1.02 |
| Application | Shoe sole polyurethane formulations and rigid foams |
| Package | 170kgs net drum, or 850kgs net IBC drum |
| Storage Condition | Keep in a cool dry place. |
| Shelf Life | One Year |
Advanced Organotin Mercaptide Catalyst for Delayed Action & Precision Curing
MXC-T120 (Dibutyltin Dilaurylmercaptide) is a highly sophisticated organotin catalyst. Engineered specifically with sulfur-based ligands, it overcomes the limitations of standard metal carboxylates by providing exceptional hydrolytic stability and a precise delayed-action curing profile. It is the premier choice for demanding applications such as microcellular shoe soles, polyurethane elastomers, and rigid foams
Molecular Architecture & Hydrolytic Stability
The fundamental structural design of MXC-T120 resolves the common deactivation issues faced by traditional tin catalysts in moisture-rich environments:
Sulfur-Based Mercaptide Ligands: Unlike standard carboxylate-based catalysts (such as DBTDL), the incorporation of thiol-functionalized ligands chemically shields the active tin center, providing a highly controlled reactivity.
Exceptional Hydrolytic Stability: It powerfully resists degradation and deactivation when exposed to water or humid production environments, ensuring your formulation remains fully active and perfectly predictable.
Dynamic Curing Profile & Structural Integrity
For production managers handling complex molds, MXC-T120 eliminates critical processing bottlenecks through its unique two-stage reaction profile:
Controlled Induction Period: It offers a distinct delayed front-end action (upfront delay). This extends the pot life and maintains excellent liquid flowability, allowing the mixture to completely fill intricate shoe sole molds before gelation begins.
Rapid Back-End Cure: Once activated by the rising exothermic temperature, it triggers an exceptionally fast and thorough final cure, drastically reducing demolding times and boosting factory throughput.
Enhanced Cross-Linking Density: In rigid polyurethane foams and elastomers, it selectively drives the urethane reaction to ensure a highly uniform cell structure, superior mechanical strength, and excellent dimensional stability.
Process Efficiency & Operational Safety
We maintain rigorous quality control parameters to safeguard your formulation integrity and improve the environmental profile of your final consumer goods:
Guaranteed High Purity: A strict minimum Sn content (purity) of 98.0% ensures highly consistent batch-to-batch reaction kinetics, minimizing reject rates in high-speed manufacturing lines.
Low Volatility & Odor Reduction: With a strictly controlled volatile content of maximum 0.3%, it significantly reduces unpleasant odors in the final product—a critical requirement for consumer-facing goods like footwear and indoor applications.
Optimal Handling Safety: Supplied as a stable amber liquid with a high flash point of 121°C and a specific gravity of 1.02, it ensures safe handling and effortless integration into your automated liquid dosing systems.
