YDNU-65 is the urea-formaldehyde product carried forward from the previous YDNRESIN site, positioned for rapid crosslinking of hydroxyl-containing polymers in selected coating and paper applications.
What this grade is designed to do
YDNU-65 is the urea-formaldehyde product carried forward from the previous YDNRESIN site, positioned for rapid crosslinking of hydroxyl-containing polymers in selected coating and paper applications.
Key formulation value
- High-solid UF crosslinking chemistry
- Solvent-free according to current product data
- Water solubility with selected xylene tolerance
- Coating and paper application direction
Working Product Master Data
Use these typical values for initial screening; request the latest approved TDS for commercial qualification.
| Appearance | Transparent viscous liquid |
|---|---|
| Solvent | None (solvent-free) |
| Solid Content (105°C/3h) | ≥85% |
| Viscosity (30°C) | 3000–10000 mPa·s |
| Density (23°C) | Approx. 1200 kg/m³ |
| Flash Point (Closed Cup) | 76°C |
| Free Formaldehyde | ≤0.5 wt% |
| Solubility | Fully soluble in water; partially soluble in xylene |
| Shelf Life | 6 months |
Technical note: Typical values are for product screening only. Final product selection and commercial qualification should follow the latest approved TDS/SDS and customer-side formulation testing.
Evaluate the resin in the complete polymer system
Compatibility & chemistry
Current product guidance includes blending evaluation with alkyd resins, polyester polyols, acrylic dispersions and epoxy esters.
What to validate
- Blend stability and clarity
- Catalyst and pH response
- Cure temperature / time
- Hardness–flexibility balance
- Storage stability
- Finished-product performance
Typical evaluation areas
Applications, evidence and technical reading.
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