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A key characteristic of FH-1550 is its molecular structure, which contains four secondary hydroxyl groups. This structural feature allows it to function effectively as a crosslinking agent in polyurethane systems, enhancing the integrity and performance of the final products. Notably, despite its specific hydroxyl number range, the product exhibits extremely low viscosity, a property that simplifies blending and handling—particularly in water-blown foam systems, where ease of processing is critical.
Chemical Structure: Equipped with four secondary hydroxyl groups, enabling efficient crosslinking in polyurethane formulations. This contributes to the mechanical stability of foams, elastomers, and coatings.
Low Viscosity: Compared to polyols with similar hydroxyl numbers, FH-1550 has significantly lower viscosity, which improves processability. At 20°C, its viscosity is 2400 cps; this drops to 960 cps at 30°C and 460 cps at 40°C, making it easy to mix with other components.
Consistent Quality: The product maintains tight control over key parameters, ensuring reliability in large-scale production.
| Property | Specification |
|---|---|
| Appearance | Clear liquid |
| Hydroxyl number | 435 – 465 mg KOH/g |
| Water content (max) | 0.05 wt.% |
| Acid number (max) | 0.010-0.060 |
| Na & K content (max) | 15 ppm |
| Color (APHA, max) | 70 |
| Nominal functionality | 4 |
| Nominal molecular weight | 500 |
| Density @ 20°C | 8.85 lbs/gal |
| Density @ 30°C | 8.79 lbs/gal |
| Density @ 40°C | 8.74 lbs/gal |
Polyurethane Foams: As a crosslinking agent, it helps form a robust polymer network, enhancing foam structural stability. Its low viscosity ensures uniform mixing with isocyanates and other additives, even in water-blown systems—reducing processing time and improving batch consistency.
Coatings: When integrated into polyurethane coatings, FH-1550 contributes to better adhesion and chemical resistance. The crosslinking effect enhances the coating’s durability, making it suitable for industrial and protective coatings.
Elastomers: In elastomer formulations, the product aids in achieving balanced flexibility and tensile strength. Its consistent hydroxyl functionality ensures predictable curing, which is critical for producing elastomers with uniform mechanical properties.
A1: FH-1550 should be stored under dry conditions at temperatures below 60°C. Exposure to moisture or high temperatures may affect its stability and performance.
A2: The product is supplied in 200kg non-returnable steel drums and 1000kg IBC tanks made from HWHDPE, suitable for both small-scale trials and large-volume industrial use.
A3: No. FH-1550 is sold exclusively for use by industrial institutions. It is not intended for consumer or non-industrial applications.
A4: For details on regulatory compliance, safety hazards, spill procedures, and disposal, refer to the Safety Data Sheet (SDS). Contact HUG CHEM directly to request the SDS or additional product information.
A5: Yes. Its low viscosity and chemical compatibility allow it to be blended with other polyols commonly used in polyurethane formulations, though compatibility testing is recommended for specific blends.
