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WL-AC309 is a hydrophilically modified aliphatic polyisocyanate curing agent, synthesized from 1,6-hexamethylene diisocyanate (HDI). It exhibits unlimited miscibility with hydrophilic auxiliary solvents and must be diluted with solvents meeting polyurethane application standards. It offers a long pot life, fast drying speed, rapid hardness development, excellent sag resistance, and outstanding weatherability. In addition, it significantly enhances the physical and chemical performance of water-based coatings or inks. The 2K PU coating formulated with WL-AC309 exhibits high gloss, superior fullness, and anti-yellowing properties, suitable for applications in aluminium powder paint, topcoat and varnish in various metal substrates.
| Product Name | Hydrophilic Aliphatic Polyisocyanate curing agent |
| Model Number | WL-AC309 |
| Appearance | Transparent viscous liquid |
| Solid Content (Non-Volatile Matter) | 90±1% |
| NCO Content | 17.0±1.0% |
| Ionic type | Anion |
| Viscosity@25℃ (mpa.s) | 500~4500 |
| Performance | Fast drying speed, rapid hardness development, long pot life, anti-sagging, weather resistance, anti-yellowing properties |
| Application | Curing agent for 2K PU coatings with fast drying |
| Packaging Details | 20KGS, 200KGS/Drum |
| Shelf Life | 6 Months |
| Transportation Precautions | Handle with care to prevent impact, damage, or leakage during transit. |
| Storage Condition | The curing agent should be kept in tightly sealed original containers. Stored in a dry and well-ventilated place at temperatures between 5℃ to 35℃. Do not expose the product to direct sunlight or UV radiation to avoid changes in the composition. Keep away from open flames, sparks, and heat sources. |
