Cause Solution

 

Damage to coating trough.

• Use another coating trough.
• Do not use sandpaper. It will create an uneven edge.
Condensation in emulsion container. • Stir emulsion gently before use do not mix-in air bubbles.
Old image in screen • Use Antistain and Antistain Cream/Screen Cleaner UV.
• Re-stretch screen with new mesh.