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High catalytic activity for urethane and polyester condensation reactions.
Excellent solubility in common organic solvents including xylene, toluene, and esters.
Thermally stable up to 180°C, supporting high-temperature processing without premature decomposition.
Low volatility and minimal odor, enhancing workplace safety and handling convenience.
Consistent batch-to-batch performance ensured by strict quality control and ISO-certified manufacturing.
Polyurethane flexible and rigid foam production.
Coating and adhesive systems requiring controlled cure kinetics.
Sealants and elastomers based on polyol-isocyanate chemistry.
Castable polyurethane elastomers and potting compounds.
Moisture-curing silicone-modified polyurethanes.
| Chemical Type | Zinc 2-ethylhexanoate (zinc octoate) |
| Product Form | Liquid |
| Appearance | Clear, light amber liquid |
| Zinc Content (as Zn) | 10.0–11.5 wt% |
| Density (25°C) | 0.98–1.02 g/cm³ |
| Solubility | Miscible with aromatic hydrocarbons, ketones, and esters |
| Storage Stability | ≥24 months in original sealed container at <25°C |
| Primary Applications | Polyurethane foam, coatings, adhesives, sealants |
Q1: What is the primary function of DY-5350 in polyurethane systems?
A: DY-5350 acts as a selective gelling catalyst, promoting urethane (polyol–isocyanate) reaction kinetics to enhance gelation and green strength development—particularly beneficial in flexible slabstock, molded foam, and CASE applications where balanced reactivity is critical.
Q2: How does DY-5350 compare to traditional tin-based catalysts like DBTDL?
A: DY-5350 offers a non-tin, heavy-metal-free alternative with reduced regulatory scrutiny and improved handling safety, while maintaining effective gelling activity. It typically delivers smoother processing behavior and lower volatility than many organotin compounds, though formulation adjustments may be needed to match exact reactivity profiles.
Q3: Is DY-5350 compatible with common polyurethane raw materials?
A: Yes—DY-5350 demonstrates good compatibility with standard polyether and polyester polyols, aromatic and aliphatic isocyanates (e.g., TDI, MDI, HDI), and typical additives such as surfactants, blowing agents, and flame retardants. Pre-testing in final formulations is recommended to confirm performance stability.
Q4: What is the typical dosage range for DY-5350 in industrial formulations?
A: Dosage depends on system requirements and desired cure profile, but DY-5350 is generally used at low concentrations—typically ranging from 0.1% to 2% by weight relative to the total polyol component. Optimization through small-scale trials is advised to achieve target flow, rise, and demold characteristics.
Q5: Does DY-5350 require special storage or handling precautions?
A: Store in a cool, dry place away from direct sunlight and moisture. Keep containers tightly sealed to prevent absorption of atmospheric moisture or CO₂, which may affect catalytic activity over time. Standard industrial PPE—including gloves and eye protection—is recommended during handling.
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