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1. PREPARE SCREEN:
Make sure the screen is clean and free of
dust, lint, and oil. |
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All screen preparation MUST be done
on the back.
TIP: The back of your screen is completely
flush with the metal edge. The front is
slight lower than the edge.
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Spray the screen with water. It should be
completely wet, but not dripping.
TIP: You can use a spray bottle to wet screen.
TIP: Run squeege up and down back and
front of screen to remove excess water.
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2. APPLY EMULSION TO SCREEN:
Remove the emulsion sheet from the
black plastic bag in a dimly lit area.
Apply the dull/sticky side to the back of
the wet screen.
TIP: There are two sides to the sheet, one
shiny and one dull. If you can’t tell which
is which, wet your fingers and touch the
corner. The sticky side is the dull side.
TIP: Center the emulsion on the screen. Do
not allow mesh to touch anything while
applying emulsion.
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Run squeegee over the shiny surface of the emulsion.
TIP: Inspect front of the screen for any bubbles or dry
areas. Dry areas will have a spiderweb pattern. Use spray
bottle with water to lightly mist any dry areas. Squeegee
both sides of screen to eliminate excess water prior to
drying. Dry edges of screen with a paper towel or cloth.
Place screen in drying rack of Yudu machine.
Press fan button to begin a 20 minute drying
cycle. The fan will stop and the machine will beep at the
close of the cycle. In drier climates the screen may dry
after as little as one cycle. In more humid climates the
drying process may require several cycles. For humid
climates you may blot moisture from the underside
of the screen with a dry cloth towel and/or squeegee
excess moisture from the screen to speed the drying
process. Test for dryness before moving on to the next
steps. After emulsion has dried, remove plastic film.
TIP: A hair-dryer can be used to accelerate the drying process.
TIP: Leaving door open while drying will speed up
the process. Repeat the drying process if necessary.
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3. SINGLE COLORED DESIGNS:
Adhere transparency, printed side up,
to the glass on the Yudu machine using
clear tape.
For single color designs, go to "Exposing
Screen"
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4. MULTICOLORED DESIGNS:
 Press light table button.
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Place first registration panel on
registration posts.
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Mount first design layer to registration
panel with clear tape.
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Tape second design layer to second registration
panel, stacking the images, and ensuring it is
registered with first layer. Repeat for each
design layer.
When design layers are secured to registration
panels, remove all but the first panel.
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5. EXPOSING SCREEN:
After emulsion has completely dried,
remove protective plastic sheet from
unexposed, emulsified screen.
TIP: If plastic sheet does not remove
easily, the emulsion is not dry.
Place screen front side up/emulsion side
down on registration posts. Place platen
on platen posts, foam side down, on top
of screen.
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Add extra weight to top of platen to
ensure proper exposure (approximately
5 lbs). Using up and down buttons on
timer, set exposure time (approximately
8 minutes).
 Press exposure button.
WARNING: Turn off machine for 1 minute
between exposures to allow unit to
cool down.
When machine beeps and exposure light
turns off, remove weight, platen, and
screen from machine. Exposed emulsion
will turn from green to blue after
exposure. Design will remain green.
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6. WASH AND DRY SCREEN:
Wet both sides of screen with COOL
water and allow to sit for a minute. Spray
screen with cool water to remove green
emulsion from design area. It may be
necessary to gently rub both sides of
screen by hand or use a soft sponge to
remove emulsion in detailed design areas.
Blot screen with lint-free towel. Place
screen in drying rack.
Press fan button.
It will take one drying cycle or more for
screen to dry. Touch screen with fingers to
make sure it is dry. A hair dryer or fan may
be used for additional drying.
For multicolored designs, use new
screen and repeat exposure, wash, and
drying steps for each artwork layer.
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