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  1. #1

    Default Best Emulsion for Sun Exposure?

    Hey all!

    We are about to move into the relm of exposing our screens in the sun...

    what is the best emulsion for exposing our screens in the sun?

    Thanks!

    JP

  2. #2

    Default

    Buuuump!

  3. #3
    The Fresh Prints's Avatar

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    Default

    i think they would allwork the same, it would just be about timing and the location of sun and or cloud coverage at that point.

  4. #4

    Default ulano qtx

    I've used ulano qtx in the sunlight with a 30 second exposure.

    We were really careful about not letting light touch it during its trip from the darkroom to the sun and to wash out booth.

  5. #5
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    steve w's Avatar

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    just buy some 500-watt halogen lamps from home depot for $7 each
    "I guarantee, the image will not be fade off and you will be pleasure it too. " - a bootlegger
    We need to print a tshirt "Avoid sucker effect!"-Fabio
    "fudge isn't sharp"-phoondaddy

  6. #6
    snoobar's Avatar

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    Quote Originally Posted by steve w View Post
    just buy some 500-watt halogen lamps from home depot for $7 each
    STEVE!......end the energy dependence!?

  7. #7
    Premium Member
    steve w's Avatar

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    my son just asked if your avatar was one of my friends.
    thanks for the finger
    "I guarantee, the image will not be fade off and you will be pleasure it too. " - a bootlegger
    We need to print a tshirt "Avoid sucker effect!"-Fabio
    "fudge isn't sharp"-phoondaddy

  8. #8
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    Andymac's Avatar

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    use a dual cure, high speed emulsion (one pot, SBQ) is too fast.

    I use/have used murikami 9500, 9800, and pro
    autotype 8000

    all work well - in mid summer full sun 60- 70 sec on yellow, 30-45 on white - but this depends on how far south you are (we are 49th parallel), what time of year, and if it is overcast or cloudy it will be longer. this is with 2 coats per side.

    if you can see a shadow, you can expose. I use a light integrator.

    all of these types you need to add diazo. diazo gives you good water resistance.
    Andymac

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

    Todo es empezar.

  9. #9
    weathermaker's Avatar

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    i use solar exposure and i use ulano 925 wr. it is green and when it is exposed it's purple, so it helps to get that visual.

  10. #10
    weathermaker's Avatar

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    also, the color changing is nice for your local, if you are in pennsyl.

    the variant in exposure time probably changes dramatically depending on time of year and amount of sun available in a day...good luck, this is a worthy process!

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