6. UL 94 Vertical Burning Test, Apparent Density, and Water Absorption Results for Standard PU and CH/PU Foam Samples.
| Sample | Dripping (Yes/No) | Self-Extinguishing (Yes/No) | Burning Classification (V) | Apparent Density (g/cm3) | Water Absorbtion (%) |
|---|---|---|---|---|---|
| Standard PU Foam | Yes | No | V2 | 0.0835 ± 0.0002 | 748.1 |
| CH/PU Foam | Yes | No | V2 | 0.1435 ± 0.0003 | 421.5 |