Higher Mesh Screen

jmb31483 · January 10th, 2010, 06:01 PM

95% of the time, we use 110 screens. Now that we just got into halftones, we have to start using 195 and above in order to show the detail. Our problem is when we burn the 195 screens, it is extremely hard to blow out. Does anyone know if we have to expose it for more time/less time? We expose our 110 screens for 5 minutes right now

Ghostwork Ink · January 10th, 2010, 08:05 PM

Hm, make sure you're coating your screens very thin when your doing 195+ on both sides, the coat needs to be flawless.
We expose our 110's at 4:30, i do 195+ at 4:50
Yellow mesh seems to wash out faster for me.. but thats just me..

make sure you also was your screens our with HOT water

ariess · January 11th, 2010, 08:03 PM

I am a big fan of the dyed mesh for that same reason. We use a 2 part emulsion, with giving specific brand names, that burns alittle longer but gets you more detail. I also agree with coating it lightly. I do disagree with rinsing with HOT water, due to pin holing. If its too hard to rinse, use pressure washer on low setting. We actually burn 195 and 300 mesh at 2min 40 secs. (Using Metal Halide)

stefanick · January 12th, 2010, 01:14 AM

First Of All Compadre' Your Exposure Times Are Based On Your Unit And Emulsion ...you Need Dyed Mesh For Screens Above 110 For Best Results And A Exposure Calculator(do Some Tests, Other Peoples Times Wont Help You Unless You Have The Same Exp.unit) .. I Would Recommend A Dual Cure For The Best Resolution And Exposure Window.. Dyed Mesh ... Coat Using The Sharp Side With Adual Cure With At Least 40%solids 2 Garment Side And 2 Squeegie Side , Dry Flat With The Garment Side Down...after Exposure Wash Out With Warm Water(all The Emulsion Manufactueres Recommend This If Available)...good Luck..

brothersprinting · January 12th, 2010, 10:10 AM

You should expose dyed mesh 30% longer than regular 110 un-dyed mesh. Like some of the others said, you can't base your exposure time off of other peoples times because it depends on your exposure unit and emulsion that you are using.