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| TROUBLE | POSSIBLE CAUSES | POSSIBLE SOLUTIONS |
| 25. Off colour. | 1. Improper oven exhaust. | 1.
Check exhaust vent fan (s). |
| 2. Bake time too long.. | 2.
Adjust line
speed.
|
|
| 3. Oven temperature too high. | 3. Lower oven temperature.. | |
| 4. Variation in film thickness. | 4. See coating appearance section inconsistent film, No. 1 through No.4. | |
| 5. Powder formulated. | 5. Check with powder manufacturer.. | |