Screen Printing - Exposing a Screen
After the screen has been coated and allowed to thoroughly dry, grab your positive and lets make a stencil. 

Let's discuss how this process works first. The screen is now sensitive to light... like film. When it is hit by light, the emulsion coating gets hard. Wherever your the light does not hit, it stays relatively soft and will wash off with water. The hardened areas, where the light hit, will not wash off, making a stencil. 

What we will do is lay your positive over top of your screen and expose it with some bright light. The areas of the positive that are black will not allow light to pass through, keeping the emulsion soft while the rest of the areas harden because the light hits it.

The video below will show how to set up and expose your screen. Here is the handout that accompanies this lesson. 

Screen Printing

    Syllabus & Assignment
    Thumbnails
    Rough
    Comprehensive
    Degreasing a Screen
    Coating a Screen
    Exposing a Screen
    Washing out a Screen
    Patching Pinholes
    Blocking Out
    Cutting Paper to Print on
    Printing the First Color
    Printing Other Colors
    Reclaiming a Screen
    Choosing Keepers
    Matting a Print
    Submitting for Grading