* The finish surface runs because of following reasons:
- Adding too much mineral spirit into the finish.
- Mineral spirit evaporates slowly.
- Spraying the finish not regularly.
- Spraying the finish too thick.
- The spraying assembly or dipping equipment have problems.
- The volume of air too much.
- Cold weather
* Fixing methods:
- Mix the finish as instructed.
- Based on drying conditions, choose suitable mineral spirit.
- Use spraying gun correctly and carefully.
- Apply a thinner layer.
- Repair or use new equipment.
- Reduce the volume of air.
- Use quick-evaporating mineral spirit or increase the temperature of spraying room.