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The impact of HS fillers on viscosity and processing times of PUR systems.
| Dynamic Viscosity η (mPa·s) | Processing Times (s) | |||||
|---|---|---|---|---|---|---|
| 0.5 RPM | 50 RPM | 100 RPM | Cream Time (s) | Free Rise Time (s) | Tack-Free Time (s) | |
| PUR | 850 ± 10 | 410 ± 8 | 330 ± 9 | 42 ± 4 | 280 ± 9 | 350 ± 12 |
| PUR_HS | 1100 ± 10 | 980 ± 10 | 420 ± 12 | 50 ± 2 | 320 ± 9 | 345 ± 10 |
| PUR_HS/SO | 1800 ± 11 | 1300 ± 10 | 750 ± 10 | 60 ± 1 | 355 ± 8 | 330 ± 8 |
| PUR_HS/TO | 2200 ± 11 | 1550 ± 10 | 850 ± 10 | 66 ± 2 | 370 ± 8 | 320 ± 8 |
