I have an older screen, and don’t know if it is silk or polyester. I ended up with 15 inches high for 85 minutes, and have decided the 7 minutes in the instructions has to be a typo.Ĭoating the screen evenly seemed impossible. To make sure my paper for covering up numbers every five minutes was opaque enough, I glued aluminum foil to the back of some scratch paper. Rather than going out to photocopy onto a transparency, I used an old transparency with a small amount of typing on it, and painted numbers with acrylic paint. This website gave helpful instructions for testing exposure times. A service rep at Speedball said that shop reflectors can vary greatly, and I should do a test before I do my expose my final screen. 15 inches high for only 7 minutes if I have a shop reflector, but 12 inches high for 45 minutes if I use a pie pan reflector. Next I questioned the exposure time in the Speedball instructions. Then I had to order the correct bulb in order to follow my exposure instructions. My first challenge was finding a clamp on shop lamp with a high enough rating to take a 150 watt bulb. I decided I should make coasters for Christmas presents, and the best way I could think to transfer the design was silk screen. Some older classwork from photoshop and illustrator classes is there as well.Īn assignment in positive/negative space left me with several designs which looked like coasters. I’ve put some of my work from this year up on. This semester I took anIntro to Design, Typography, and InDesign. I am taking graphic arts classes at Laney College, and it has been keeping me busy.

Speedball emulsion exposure times