Equipment Trouble Shooting (Foam)
This article features a selection of common foam equipment related problems along with the cause and solution. Make sure your equipment is operating correctly and you are getting the best quality and yield from your foam.
Problem – Incorrect Ratio – Lacking Isocyanate
| SYMPTOM | CAUSE | SOLUTION |
|---|---|---|
| White spray and/or soft foam | Restriction | If high pressure on Isocyanate pressure gauge check between gun and console |
| Starvation | Check from console to material supply system | |
| Alternate white bursts and/or soft foam | Intermittent starvation | Check pumps on Isocyanate side |
Problem – Incorrect Ratio – Lacking Polyol
| SYMPTOM | CAUSE | SOLUTION |
|---|---|---|
| Dark spray and/or brittle foam | Restriction | If high pressure on Polyol pressure gauge check between gun and console |
| Starvation | Check from console to material supply system | |
| Alternate dark bursts and/or brittle foam | Intermittent starvation | Check pumps on Polyol side |
Problem – Incorrect Temperature – Low temperature
| SYMPTOM | CAUSE | SOLUTION |
|---|---|---|
| Stream of material not a spray and/or foam not fully expanded | Incorrect setting | Increase as necessary |
| Electrical fault | Troubleshoot electrically |
Problem – Incorrect Temperature – High temperature
| SYMPTOM | CAUSE | SOLUTION |
|---|---|---|
| Popcorn appearance on foam surface | Incorrect setting | Reduce as necessary |
| Electrical fault | Troubleshoot electrically |
Problem – Incorrect Mixing – Low pressure
| SYMPTOM | CAUSE | SOLUTION |
|---|---|---|
| Large droplets, small spray pattern and/or Foam not fully expanded | Incorrect setting | Increase pressure at proportioning unit |
| Starvation | Check from console to material supply system | |
| Pump fault | Repair as necessary |
