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  1. #1

    Join Date
    Aug 2004
    Location
    Boulder, CO
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    Default emulsion drying time

    how long does a freshly coated screen need to dry before it can be burned? we are putting 3 coats total on the screen and drying it in front of a fan.

    trying to be efficient with our time...lot's of work to do today, not always enough available screens

    thanks,

    justin

  2. #2
    Premium Member
    caribou's Avatar


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    Mar 2002
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    charleston
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    Default

    it's really dry this time of year here, so i've been able to dry one coat in about 45 minutes (with a fan). i usually let them sit overnight to really dry, though.

  3. #3
    Premium Member
    adamturman's Avatar


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    Feb 2004
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    Minneapolis
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    Default

    I think it depends on how large it is and how directly the fan is positioned, but my 23 x 27 screens dry in about an hour.

    If you want to fudge a little, you can test the one of the edges with your finger and see if it's dry.

  4. #4
    Premium Member
    Andymac's Avatar

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    Aug 2003
    Location
    Van Isle BC Canada
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    Default

    If you are running waterbase, you need the screen to dry in an area where the relative humidity is below 50%. A fan might get you there, depends on the humidity in your location. I use a little hairdryer to pump the heat up (be careful it doesn't burn up - ask Michael Motorcycle about that one) or a dehumidifier.
    Screens that are dry to the touch are OK for solvent work, but you will run into stencil breakdown on long WB runs if you don't dry them properly. We go 3 hours with heat at 50% and call it done.

    Having said all that, if they are dry to the touch (and washout ok), and you aren't having breakdown probs, then you can rush it like you have been. A screen that is not fully dried will screw up when you go to wash out. Same with one that is coated onto a wet or damp screen.
    Andymac

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

    Todo es empezar.

  5. #5
    RichieGoodtimes's Avatar

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    Mar 2002
    Location
    San Frangeles, Califas
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    Default

    Screen prining sounds super complicated.

  6. #6
    Premium Member
    Andymac's Avatar

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    Aug 2003
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    Van Isle BC Canada
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    Default

    It is Richie, so don't try it.


    I'm serious...














    No fuckin' santa claus....you prick you ruined christmas for me....
    Andymac

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

    Todo es empezar.

  7. #7
    Premium Member
    braksandwich's Avatar


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    Sep 2003
    Location
    Seattle, WA
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    Default

    in my basement here in seattle, with the humidity what it is, i have had screens take up to 24 hours to dry. it sucks.

  8. #8
    Premium Member
    mysterion's Avatar

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    Jul 2004
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    Seattle, WA
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    Default

    What works really well for me is...first, coat screen, stick in drying cabinet...



    Then turn on drying implement. On low. Hang over door of cabinet like above...

    Come back in an hour or so...screen dry.
    "That's the way I like it, baby, I don't wanna live forever - and don't forget the Joker." Lemmy

  9. #9
    kozik's Avatar

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    Apr 2002
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    Default

    I always let em sit overnight.

  10. #10
    jasoncross's Avatar

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    Mar 2002
    Location
    Austin
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    Default

    i live in the desert...my screens dry quickly.

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