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High-performance aliphatic polyisocyanate dispersion for waterborne two-component polyurethane systems.
Excellent hydrolytic stability and storage stability in aqueous media.
Enables low-VOC, high-gloss coatings with outstanding hardness development and chemical resistance.
Optimized reactivity profile for balanced pot life and rapid film formation at ambient or forced-dry conditions.
Compatible with a broad range of waterborne polyols, including acrylics, polyesters, and PUDs.
Waterborne industrial maintenance coatings for metal substrates.
High-end architectural and interior wall coatings requiring durability and low emissions.
Wood finishing coatings for furniture and cabinetry with low odor and fast handling.
Plastic coatings for automotive interior trim and consumer electronics.
Coatings for coil and sheet metal applications requiring excellent flexibility and corrosion resistance.
| Chemical Type | Aliphatic polyisocyanate (HDI-based) dispersion |
| Product Form | Opaque white to slightly yellow liquid |
| Appearance | Homogeneous aqueous dispersion |
| Primary Applications | Two-component waterborne polyurethane coatings |
| Key Features | Low VOC, non-yellowing, ambient-cure capable |
| Benefits | Reduced solvent demand, improved workplace safety, compliance with stringent environmental regulations |
| Storage Stability | ≥6 months at 5–30 °C in sealed original container |
| Non-Volatile Content | Approx. 45–48 wt% (as supplied) |
Q1: What is the primary function of Bayhydur XP2547 in waterborne coating systems?
A: Bayhydur XP2547 is an aliphatic polyisocyanate-based crosslinker designed to react with waterborne polyols and amines, enabling the formation of durable, high-performance thermoset films with excellent chemical resistance, gloss retention, and mechanical properties.
Q2: Is Bayhydur XP2547 compatible with common waterborne acrylic and polyester dispersions?
A: Yes — XP2547 exhibits broad compatibility with a wide range of waterborne hydroxyl- and amine-functional resins, including acrylic, polyester, and hybrid dispersions, supporting stable one-component or two-component formulations depending on system design.
Q3: How does Bayhydur XP2547 contribute to VOC reduction in finished coatings?
A: As a waterborne curing agent, XP2547 enables formulators to develop low-VOC or VOC-compliant coating systems without sacrificing performance, since it replaces solvent-borne isocyanates and supports high-solids or aqueous-based architectures.
Q4: What storage conditions are recommended for optimal shelf life?
A: Store in original sealed containers at temperatures between 5 °C and 30 °C, protected from moisture and direct sunlight; avoid freezing, as prolonged exposure to low temperatures may affect viscosity and dispersion stability.
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E-mail: wangxingqiang@ericwchem.com
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