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I am a newbie to the screen printing industry, but have been blessed to learn the trade and come across some very good deals regarding equipment, supplies, and even have a few customer orders in process.

I have an 8/8 Brown Manual press but due to space constraints I only have 3 shirt platens and 4 color heads currently assembled. Now let's fast forward to my emulsion / exposure issues:

Due to a lack of resources I am currently using a Yudu machine as my exposure unit. For a 110 mesh screen with a vellum film positive I originally was exposing the screen for 10 minutes. But last weekend, the 10 minute formula stopped working and I had to up my time to 13 minutes.

Now just last night I tried to expose a 110 mesh screen at 13 minutes and it washed out all wrong, and I also had a gang screen (155 mesh) that I was trying to expose for left chest prints... That, too, went horribly wrong! I am beginning to get a little discouraged, but I certainly won't give up. I just know that if I reach out to T-Shirt Forums someone will have a solution for me.

Also, I am using the WBP emulsion (red) from Ryonet and I know my scoop coater has dried up emulsion in it. Not sure if this has anything to do with it. Or maybe the YuDu lights are getting weaker...

I have attached pictures... Please all feedback is welcome
 

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Don't see any pictures. Any light source will gradually lose strength, some more than others. Emulsion on the coater probably won't matter, but the thickness of the emulsion layer makes a great deal of difference. Make sure your coating technique is consistent and get or make an exposure guide. This is the only way to get accurate exposure. God Bless.
 
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