I have been wanting to screen print at the cabin, since I have more time for artistic things, etc. but wasn’t sure I would be able to expose screens in sunlight … or more accurately, I was unsure I could expose a screen in the usually-overcast, low-in-the-sky, short-day winter sun.
My first trial I overexposed the screen so badly that I couldn’t even see the image. Then I realized that maybe the strong light bulbs and light tables that people usually use for screen printing are much weaker than the sun.
This morning, I exposed the screen at dawn, and left it for about 2.5 hours in a south-facing window. Today is overcast and rainy, but that was almost too much exposure!
So, good news: it’s easy to screen print without electricity.