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Low-viscosity aliphatic polyisocyanate offering excellent compatibility with hydroxyl-functional resins.
Non-yellowing performance due to hexamethylene diisocyanate (HDI) trimer chemistry.
Fast ambient-cure capability with balanced pot life for efficient production workflows.
High crosslink density delivering superior chemical resistance and mechanical durability.
Compliant with REACH and meets VOC regulations for industrial coating formulations.
Automotive refinish clearcoats and basecoats.
Industrial maintenance coatings for metal and concrete substrates.
High-performance plastic coatings requiring flexibility and adhesion.
Wood finishing systems including furniture and cabinetry topcoats.
Railway and bus exterior protective coatings.
| Chemical Type | Aliphatic HDI-based polyisocyanate trimer |
| Product Form | Liquid |
| Appearance | Clear, pale yellow liquid |
| NCO Content (wt %) | 17.5 – 18.5% |
| Viscosity at 25°C (mPa·s) | 1,800 – 2,400 |
| Density at 25°C (g/cm³) | 1.18 – 1.22 |
| Solvent | Acetate-based (e.g., butyl acetate) |
| Storage Stability | ≥12 months in sealed container at <30°C |
Q1: What types of resins is BI-180 compatible with?
A: BI-180 is specifically designed for use with hydroxyl-functional acrylic, polyester, and polyurethane resins in two-component coating and adhesive systems. It provides efficient crosslinking under ambient or elevated cure conditions.
Q2: How does BI-180 compare to traditional HDI-based isocyanate curing agents in terms of pot life and film formation?
A: BI-180 offers extended pot life compared to standard aliphatic isocyanates while maintaining good reactivity upon heating. This balance supports improved application window and smoother film formation without excessive surface defects.
Q3: Is BI-180 suitable for low-VOC or high-solids formulations?
A: Yes — BI-180 is formulated to support low-VOC and high-solids coating systems. Its low volatility and compatibility with reactive diluents make it well-suited for environmentally compliant industrial finishes.
Q4: What safety precautions should be observed during handling and storage?
A: As with all isocyanate-containing materials, BI-180 requires handling in well-ventilated areas with appropriate PPE (gloves, goggles, respiratory protection if aerosols or vapors are present). Store in tightly sealed containers under dry, cool conditions away from moisture and amines.
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E-mail: wangxingqiang@ericwchem.com
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