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Low-viscosity aliphatic polyisocyanate offering excellent storage stability and handling safety.
Non-yellowing performance ideal for UV-stable and weather-resistant coating systems.
Reactive NCO content optimized for balanced pot life and rapid ambient or low-bake cure kinetics.
Compatible with a wide range of hydroxyl-functional resins including acrylics, polyesters, and polycarbonates.
Compliant with major global VOC regulations and formulated without added solvents.
High-performance automotive clearcoats and basecoats requiring gloss retention and chip resistance.
Industrial maintenance coatings for metal and plastic substrates exposed to outdoor conditions.
Premium wood coatings where clarity, hardness, and low-temperature film formation are critical.
Plastic coatings for electronics housings and consumer goods demanding non-yellowing aesthetics.
| Chemical Type | Aliphatic polyisocyanate (hexamethylene diisocyanate-based) |
| Product Form | Liquid |
| Appearance | Clear, colorless to pale yellow liquid |
| NCO Content (wt %) | 15.8 – 16.4 % |
| Viscosity at 25 °C | 800 – 1200 mPa·s |
| Density at 20 °C | 1.17 – 1.19 g/cm³ |
| Primary Applications | Two-component polyurethane topcoats and clearcoats |
| Key Features | Low viscosity, non-yellowing, solvent-free option available |
Q1: What is the primary chemical nature of Desmodur VP LS 2394?
A: Desmodur VP LS 2394 is a low-viscosity, aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI) trimer chemistry, designed for ambient- or low-temperature curing systems with excellent weathering resistance and minimal yellowing.
Q2: Which types of resins is Desmodur VP LS 2394 typically compatible with?
A: It is commonly used with hydroxyl-functional acrylics, polyesters, and alkyds in two-component (2K) coatings, adhesives, and sealants—particularly where fast cure, low VOC content, and high gloss retention are required.
Q3: How does Desmodur VP LS 2394 perform under humid or low-temperature conditions?
A: Due to its low sensitivity to moisture and relatively high reactivity at reduced temperatures, it enables robust film formation in challenging ambient conditions—making it suitable for outdoor or uncontrolled-environment applications without requiring forced drying.
Q4: Is Desmodur VP LS 2394 suitable for food-contact or potable water applications?
A: This product is not pre-approved for direct food contact or potable water applications. Formulators must conduct full regulatory evaluation—including migration testing and compliance verification—based on final cured system composition and intended use.
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