A question from El Paso, TX.
QUESTION: How do I avoid undercured emulsion?
ANSWER: Once your screens are coated with emulsion (or capillary film), allow ample time for the emulsion to fully dry. A period of 12 hours is usually sufficient. Dry your just coated screens in a warm, dark area to ensure proper drying.
Screen drying cabinets can also be used to speed up the drying process. They are available from screen printing equipment suppliers.
After you have exposed a screen and washed out the stencil, allow the screen to dry to for at least an hour before printing with it. Running a fan over the screen will speed up the drying process.
Post exposing a newly-imaged screen on your exposure unit will harden the emulsion and make it more durable.
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