dfr for flexible pcb fh-1500 series
introduction
specially for high quality and fine line, fh-1500 series exhibit high resolution and adhesion, excellent image contrast, suitable for fpc.
■ high resolution & adhesion
■ scum free and low sludge
■ wide work window，stable performance
characteristics
| property | unit | fh-1525 | fh-1529 |
| thickness | μm | 23±1.0 | 29±1.0 |
| exposure energy (sst=19/41st) | mj/cm2 | 20 | 25 |
| resolution (sst=19/41st) | μm | 22 | 27 |
| (sst=19/41st) | μm | ≤15 | ≤15 |
| minimum developing time | s | 18 | 22 |
| stripping time (3%naoh, 50℃) | s | 28 | 35 |
| size of stripping flake | mm | 10-30 | 10-30 |
