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High-performance aliphatic polyisocyanate dispersion for low-VOC, waterborne two-component polyurethane systems.
Excellent compatibility with a broad range of waterborne polyols, including acrylics and polyesters.
Fast ambient-cure kinetics enabling efficient production cycles without forced drying.
Outstanding gloss retention, color stability, and UV resistance in final coatings.
Low free monomer content meeting stringent regulatory requirements for industrial applications.
Automotive refinish coatings requiring high durability and aesthetic performance.
Industrial maintenance coatings for metal substrates in transportation and infrastructure.
Wood coatings for furniture and interior architectural elements.
Plastic coatings for automotive interior trim and consumer electronics housings.
General-purpose protective coatings for machinery and equipment.
| Chemical Type | Aliphatic polyisocyanate (HDI-based) dispersion |
| Product Form | Waterborne liquid dispersion |
| Appearance | Clear to slightly hazy, colorless to pale yellow liquid |
| Primary Applications | Two-component waterborne polyurethane topcoats and clearcoats |
| Key Features | Low VOC, ambient-curing, UV-stable, non-yellowing |
| Benefits | Reduced environmental impact, excellent film formation, high chemical resistance |
| Storage Conditions | Store at 5–30 °C; protect from freezing and direct sunlight |
| Shelf Life | 12 months from date of manufacture when stored properly |
Q1: What is the primary function of Bayhydur XP2487 1 in waterborne coating systems?
A: Bayhydur XP2487 1 is a water-dispersible polyisocyanate curing agent designed to react with waterborne polyols and amines, enabling ambient- or low-temperature crosslinking in high-performance, low-VOC coatings for industrial and automotive refinish applications.
Q2: Is Bayhydur XP2487 1 compatible with standard waterborne acrylic or polyester polyol dispersions?
A: Yes — it demonstrates broad compatibility with common waterborne hydroxyl-functional resins, including acrylic, polyester, and hybrid polyol dispersions. Compatibility and pot life should be verified experimentally for each specific formulation due to sensitivity to pH, ionic content, and surfactant systems.
Q3: How does Bayhydur XP2487 1 contribute to film performance in cured coatings?
A: It delivers excellent chemical resistance, mechanical durability, and gloss retention after curing. Its aliphatic structure supports UV stability and long-term color retention, making it suitable for topcoats requiring weatherability and scratch resistance.
Q4: What are key handling and storage recommendations for this product?
A: Store in tightly sealed original containers at temperatures between 5 °C and 30 °C, protected from moisture and freezing. Avoid prolonged exposure to high humidity during handling, and ensure equipment is clean and free of contamination prior to use.
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E-mail: wangxingqiang@ericwchem.com
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