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T-9
Polyurethane Catalyst 99% Stannous Octoate (CAS 301-10-0)
Widely recognized as T-9, this product serves as an indispensable component in advanced polymer formulations. Presenting as a pale yellow, slightly viscous liquid with a distinct but mild metallic odor, this catalyst is engineered through a strictly controlled synthesis process. Our proprietary manufacturing techniques ensure a stringent 99% purity level with strictly minimized trace impurities, guaranteeing exceptional batch-to-batch consistency for your production lines.
Beyond its primary role in driving the gelation reaction of polyether-polyurethane foaming, T-9 acts as an effective antioxidant, extending the lifespan of the final foam structure. Formulators appreciate its excellent solubility in standard polyols and most organic solvents, alongside a precise density profile and stable flash point that ensures uniform dispersion and safe handling during mixing. Because stannous octoate is sensitive to hydrolysis and oxidation upon exposure to ambient moisture and air, maintaining strict environmental controls during formulation is critical.
To support global trade requirements and eliminate downstream export barriers, this catalyst complies with major international regulatory frameworks. It holds full REACH registration, is listed on the TSCA inventory, and meets specific criteria for FDA indirect food contact applications, providing formulators with the necessary compliance documentation for demanding markets.
| Item | Standards |
| Appearance | Pale yellow liquid |
| Tin content | ≥28.0% |
| Stannous content | 27.25-29% |
| Colorful Gardner | ≤3.0 |
| Viscosity | ≤360 |
The technical specifications outlined above represent the strict quality control parameters applied to every manufactured batch of our T-9 catalyst. Maintaining a stannous content between 27.25% and 29% is vital for ensuring predictable reactivity profiles during the foaming process. The maximum viscosity of 360 mPa·s ensures smooth pumpability and accurate metering in automated dispensing equipment, while the low Gardner color value guarantees that the catalyst will not impart unwanted discoloration to white or light-colored foam products.
Stannous octoate is primarily a gelling catalyst for polyurethane systems, driving the critical crosslinking phase that defines the final cellular structure.
Slabstock foam
HR foam
Memory foam
Molded seating foam
In flexible foam manufacturing, T-9 is essential for establishing a stable rise profile, preventing internal collapse or excessive shrinkage while establishing a uniform open-cell structure. The resulting foams exhibit superior tactile softness, optimal breathability, and excellent compression set recovery, making them ideal for premium bedding and automotive seating.
PIR/PUR insulation foam
Spray foam
Refrigerator insulation
Pipe insulation
For rigid applications, this catalyst facilitates rapid curing. The accelerated reaction locks in the blowing agent effectively, yielding a fine, closed-cell matrix that maximizes thermal resistance and structural rigidity.
Coatings
Adhesives
Sealants
Elastomers
Beyond foams, T-9 is heavily utilized in CASE formulations. It promotes thorough curing in thick-section elastomeric parts and enhances the cohesive strength of industrial adhesives. In protective coatings, it ensures a tack-free finish and excellent environmental resistance, directly improving the durability of the applied layer.
T-9 strongly accelerates the specific chemical pathways within the polymer matrix:
between:
Polyol
Isocyanate
This results in:
Faster gel time
Improved cure
Better mechanical strength
Enhanced crosslinking
By lowering the activation energy required for this urethane linkage, T-9 delivers critical processing advantages. Formulators experience shorter demolding cycles and increased production throughput. The improved cure rate translates directly to better early mechanical strength, enabling safer handling of freshly manufactured components.
Compared with amine catalysts:
T-9 mainly promotes gelling
Amines often promote blowing
Therefore, T-9 is usually balanced with amine catalysts such as:
TEDA
DMCHA
PMDETA
Bis(2-dimethylaminoethyl) ether
This synergistic pairing prevents common defects like foam boiling or internal splitting, ensuring a highly controlled manufacturing environment that balances polymer expansion with structural stabilization.
T-9 / Stannous octoate packaging: 25 kilograms or 200 kilograms per drum.
To accommodate varying scales of production and testing requirements, we offer highly flexible packaging configurations for our T-9 Stannous Octoate catalyst. For large-scale continuous manufacturing facilities, the product is securely supplied in heavy-duty 200-kilogram steel drums, designed to withstand rigorous transit conditions while preventing contamination. For mid-sized operations or specialized batch runs, convenient 25-kilogram plastic pails are available, offering easier handling and precise pouring.
Understanding the critical nature of formulation development, we also provide comprehensive sample services. Formulators can request laboratory-grade samples ranging from 100 grams to 1 kilogram. These smaller quantities are packaged in tightly sealed, moisture-proof aluminum or high-density polyethylene bottles, allowing your research and development team to conduct thorough reactivity testing, compatibility trials, and pilot runs before committing to industrial-scale procurement.
T-9 / stannous octoate storage: When transporting the catalyst T-9, it should be protected from rain and contamination. Handle with care and avoid leakage due to collision with hard objects. When storing the catalyst T-9, it should be kept in a well-ventilated and dry warehouse at room temperature, avoiding damp environments. The storage temperature should be below 25°C, and it should be kept away from sunlight, water and heat sources. To prevent moisture absorption and oxidation, it is recommended to fill the container with nitrogen.
In accordance with GHS hazard classifications, facility managers must ensure that frontline personnel are equipped with proper Personal Protective Equipment (PPE). Mandatory gear includes chemical-resistant gloves, splash-proof safety goggles, and, in areas with inadequate ventilation, approved vapor respirators. From a toxicological and environmental standpoint, any spills or waste material should be collected using inert absorbents and disposed of through certified hazardous waste management facilities. Preventing the catalyst from entering municipal sewers or aquatic ecosystems is essential for fulfilling corporate environmental responsibilities and adhering to local discharge regulations.
