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Low-viscosity aliphatic polyisocyanate offering excellent storage stability and extended pot life.
Non-yellowing performance ideal for high-clarity and color-stable coating systems.
Reactive NCO content optimized for balanced cure speed and film formation at ambient or low-bake conditions.
Compatible with a broad range of hydroxyl-functional resins including acrylics, polyesters, and polycarbonates.
Meets stringent VOC regulations due to its solvent-free formulation and low monomer residue.
Automotive clearcoats and basecoats requiring exceptional gloss retention and UV resistance.
Industrial maintenance coatings for metal and plastic substrates exposed to harsh environments.
High-performance wood finishes where clarity, hardness, and chemical resistance are critical.
Plastic coatings for exterior automotive parts and consumer electronics housings.
Two-component (2K) protective topcoats in architectural and transportation applications.
| Chemical Type | Aliphatic polyisocyanate (hexamethylene diisocyanate trimer) |
| Product Form | Liquid |
| Appearance | Colorless to pale yellow transparent liquid |
| NCO Content (wt%) | 13.5 – 14.5 |
| Viscosity @ 25°C (mPa·s) | 800 – 1,200 |
| Density @ 25°C (g/cm³) | 1.18 – 1.22 |
| Primary Applications | 2K polyurethane coatings for automotive, industrial, and wood finishes |
| Key Features | Low viscosity, non-yellowing, ambient-cure capable, low monomer content |
Q1: What is the primary chemical composition of CORONATE HXLV?
A: CORONATE HXLV is a low-viscosity, aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI) trimer chemistry, modified to provide enhanced storage stability and reduced volatility compared to standard HDI trimers.
Q2: How does CORONATE HXLV differ from conventional HDI-based curing agents in terms of handling and performance?
A: CORONATE HXLV offers significantly lower viscosity and improved hydrolytic stability, enabling easier metering, better compatibility with moisture-sensitive resins, and reduced risk of gelation during storage—especially under humid conditions or extended shelf life requirements.
Q3: Which resin systems is CORONATE HXLV typically formulated with?
A: It is widely used with hydroxyl-functional acrylics, polyesters, and alkyds in high-performance two-component coatings for automotive OEM, refinish, and industrial applications where excellent gloss retention, weather resistance, and mechanical durability are required.
Q4: What are key storage and handling recommendations for CORONATE HXLV?
A: Store in tightly sealed containers under dry, cool conditions (preferably below 30°C) and protect from moisture ingress. Avoid prolonged exposure to ambient humidity during dispensing, and use only with dry air or nitrogen purging in transfer systems to maintain long-term stability.
Q5: Is CORONATE HXLV suitable for low-VOC or high-solids coating formulations?
A: Yes—its low viscosity and high NCO content allow formulators to reduce solvent demand while maintaining workable pot life and film formation properties, supporting compliance with evolving VOC regulations across major markets.
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E-mail: wangxingqiang@ericwchem.com
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