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  1. #1
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    Default Lines in burn from transparency edges and cuts

    Hi all, just starting out screen printing. I am getting small lines from the edges of transparencies after burning. I am guessing my burn time is still not long enough? 500wt halogen, 230, screen 2-1 coat. Any advise? Thanks.

  2. #2
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    miklay's Avatar

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    tape them off before printing. i still get those and i've been doing it for 10 years. or coat your screen thicker.
    +++++ POWERSLIDE DESIGN CO. +++++ facebook +++++ aka: mike klay

  3. #3

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    Quote Originally Posted by miklay View Post
    tape them off before printing. i still get those and i've been doing it for 10 years. or coat your screen thicker.
    Why use tape? I don't usually tape anything off anymore unless I'm in a hurry. I just blockout/fill them with emulsion. Grab an old credit card, dip it into your emulsion bucket, and swipe over the open areas of the screen carefully. Dry it with a hairdryer. When you're done throw it back under the lamp for another exposure.

  4. #4
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    Yeah, a blockout pen or swipe with some emulsion will do the trick. That'll happen to me with a halogen work lamp setup. I assume the light's just getting refracted a bit at the edge of the transparency.

  5. #5
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    I never patch with emulsion. Always tape.
    If I'm doing a long run, I tape off the entire non-image part of the screen that the squeegee passes over. Works great.

  6. #6
    Aaron Gein's Avatar

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    Tape here too. I've never used emulsion to block out the edges of a screen or anything. It does kind of bum me out how much tape I throw in the garbage every week though....

  7. #7
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    Quote Originally Posted by Aaron Gein View Post
    Tape here too. I've never used emulsion to block out the edges of a screen or anything. It does kind of bum me out how much tape I throw in the garbage every week though....
    I think he's talking about getting a thin line where the edge of a film was, not the uncoated areas of the screen at the edges. Could be wrong though.

  8. #8
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    Andymac's Avatar

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    Saatichem W1 it's what we use, never breaks down with WB inks, comes out easy on reclaim
    Andymac

    services www.squeegeeville.com
    equipment www.tmiscreenprinting.com

    Todo es empezar.

  9. #9
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    I cut the edges off my film.

  10. #10
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    Quote Originally Posted by sedgewick View Post
    I cut the edges off my film.
    this. I've noticed there is much more chance of getting a little crack line if I cut film with a knife vs scissors. It's the light refracting. the longer the exposure, the less chance of these film edge lines showing.
    Andymac

    services www.squeegeeville.com
    equipment www.tmiscreenprinting.com

    Todo es empezar.

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