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High catalytic activity in polyurethane foam formulations, especially for flexible slabstock and molded foams.
Excellent solubility and compatibility with common polyol systems and organic solvents.
Low volatility and superior thermal stability compared to traditional zinc carboxylates.
Non-staining and low-odor profile, supporting compliance with stringent indoor air quality requirements.
Consistent batch-to-batch performance due to strict synthesis control and rigorous QC testing.
Flexible polyurethane foam production for bedding and furniture.
Automotive interior foam components including seat cushions and headrests.
Coating and adhesive systems requiring delayed-gel, balanced reactivity.
Reaction injection molding (RIM) and structural foam applications.
Water-blown foam systems where low VOC emissions are critical.
| Chemical Type | Zinc neodecanoate (zinc 2-ethylhexanoate analog with branched C10 carboxylate) |
| Product Form | Liquid |
| Appearance | Clear, pale yellow to amber liquid |
| Zinc Content (wt%) | 10.0 – 11.5% |
| Density (25°C, g/cm³) | 0.94 – 0.97 |
| Solubility | Miscible with common polyols, glycols, and aromatic solvents |
| Storage Stability | Stable for ≥12 months at 15–25°C in sealed containers |
| Primary Function | Gelation catalyst for polyurethane reactions |
Q1: What is the primary function of DY-5390 in coating and ink formulations?
A: DY-5390 acts as a highly efficient drier catalyst that accelerates the oxidative crosslinking of alkyd resins and other air-drying binders, promoting faster surface dry and through-cure without excessive skinning or wrinkling.
Q2: How does DY-5390 compare to traditional cobalt-based driers in terms of performance and safety?
A: Unlike cobalt driers, DY-5390 provides effective catalytic activity with reduced regulatory scrutiny and lower toxicity concerns. It offers good induction control and improved compatibility in modern low-VOC and high-solids systems where cobalt may cause premature gelation or color instability.
Q3: What is the typical dosage range for DY-5390 in industrial coatings?
A: DY-5390 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight relative to resin solids—depending on binder type, film thickness, ambient conditions, and desired drying profile. Optimization is recommended via small-scale trials.
Q4: Is DY-5390 compatible with common co-driers such as calcium or zirconium complexes?
A: Yes, DY-5390 demonstrates good compatibility with secondary driers like calcium and zirconium neodecanoates, enabling balanced through-dry and surface-dry performance in multi-metal drier systems.
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