Hardened emulsion washing away

 monochrome, screen-printing, usage

1. Description of the problem

The emulsion peals off your screen when you reveal it, damaging your stencil.

2. Possible origins

This is typical of an underexposed screen. There are several possible origins :

  • you didn't respect the exposure timing and your emulsion is undercooked.
    • you didn't respect the exposure distance and your emulsion is undercooked.
      • your emulsion layer wasn't dry enough.
        • your emulsion layer was too thick.

          3. Solution

            95% of exposure issues are due to a bad coating. Please check if you recognize your screen in one of the other guides before going further.

          1. First, make sure your screen is dry enough by touching it: it should not by sticky at all.
            1. Usual drying times goes from 3 to 4 hours depending on your room temperature and humidity.
              1. Then, check the distance of your exposure unit to your screen. With our kit, it should be around 60 cm.
                1. Last, make sure to follow the timing instruction precisely (+- 15sec).