We wanted to start screening posters. Read the speedball book and several other free publications. Bought 2x2's, 110 polyester mesh screen, diazo emulsion, made transparencies on b/w laser.
Built screens. Spread emulsion. After a little experimentation we burned screens with 200 watt bulb for 8 minutes at 17" and then washed out the screen and let them dry (screens came out clean and defined to the best of our knowledge). Aquired Speedball Screenprinting Acrylic ink and started pulling prints.
Little bubbles appear in the print. Not sure why. I was wondering if anyone else had the same issue and knew where we went wrong and how to eliminate the bubbles.
Billy (FireBelle Press)