Water Wash Printing Plate Exposure Instructions

- Remove plate from UV protective packaging.
- Remove clear protective sheet from plate surface.
- Place plate into exposure unit.
- Place film positive with emulsion side down onto plate surface.
- Place vacuum sheet over film positive.
- Start vacuum sequence. Vacuum reading should be 15–20 HG.
- Expose film positive for 45 seconds, or to customer pre-determined exposure time.
- Remove vacuum sheet from plate.
- Using a universal screen tint (200 / 10%) place screen onto plate with emulsion side down.
- Place vacuum sheet over screen tint.
- Start vacuum sequence.
- Expose screen tint for 30 seconds, or to customer pre-determined exposure time.
- Remove vacuum sheet from plate.
- Remove screen tint.
- Remove plate from exposure unit.
- Develop entire plate with a plush cloth using LUKE WARM WATER for 1 minute.
- Blow off image & plate with compressed air.
- Place plate into convection oven @ 180 - 200 degrees F. for 15 minutes.
- Remove plate from oven.
- Allow plate to cool down to room temperature.
- Place plate into exposure unit.
- Re-expose plate (without vacuum) for 15 minutes.
- Remove plate from exposure unit.
- Plate making completed.