English
Español
tiếng việt
русский
Highly reactive aliphatic polyisocyanate offering excellent weather resistance and UV stability.
Low-viscosity liquid formulation enabling easy handling, precise metering, and efficient mixing with polyols.
Provides outstanding mechanical properties including hardness, abrasion resistance, and chemical resistance in cured films.
Non-yellowing performance ideal for demanding clear-coat and topcoat applications.
Compliant with major global regulatory frameworks for industrial coatings, including REACH and VOC-restricted formulations.
Automotive clearcoats and OEM refinish coatings.
High-performance industrial maintenance coatings for infrastructure and machinery.
Premium wood coatings requiring clarity, durability, and gloss retention.
Plastic coatings for exterior automotive components and consumer electronics housings.
Wind turbine blade protective coatings demanding long-term UV and environmental resistance.
| Chemical Type | Aliphatic polyisocyanate (hexamethylene diisocyanate-based) |
| Product Form | Liquid |
| Appearance | Colorless to pale yellow transparent liquid |
| NCO Content (wt %) | 15.5 – 16.5 |
| Viscosity at 25 °C (mPa·s) | 800 – 1,200 |
| Density at 20 °C (g/cm³) | 1.19 – 1.21 |
| Flash Point (PMCC, °C) | 150 – 160 |
| Storage Stability | Stable for ≥12 months at 15–25 °C under dry, inert conditions |
Q1: What is the primary chemical class and functional role of Desmodur XP 2406?
A: Desmodur XP 2406 is a low-viscosity aliphatic polyisocyanate curing agent, primarily based on hexamethylene diisocyanate (HDI) trimer chemistry. It functions as a crosslinker for hydroxyl-containing resins—especially in two-component polyurethane systems—providing excellent weather resistance, gloss retention, and mechanical durability.
Q2: Is Desmodur XP 2406 suitable for high-solids or solvent-reduced coatings formulations?
A: Yes, its inherently low viscosity and high NCO content make it well-suited for high-solids and low-VOC coating systems. It enables formulators to achieve target solids levels without excessive solvent addition while maintaining good pot life and film formation characteristics.
Q3: How does Desmodur XP 2406 compare to aromatic isocyanates in terms of UV stability and color retention?
A: Unlike aromatic isocyanates (e.g., TDI or MDI derivatives), Desmodur XP 2406 is aliphatic and therefore highly resistant to UV-induced yellowing and chalking. It is preferred for topcoats and clearcoats where long-term color stability and clarity are critical—such as in automotive refinish, industrial maintenance, and architectural applications.
Q4: What are typical handling and storage recommendations for this product?
A: Store in tightly sealed containers under dry, cool conditions (preferably below 30 °C) and protect from moisture, heat, and direct sunlight. Due to its reactivity with water, avoid exposure to humidity during handling. Use appropriate personal protective equipment—including nitrile gloves and respiratory protection when spraying or handling in poorly ventilated areas.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
