Specifications

30
Pour the pre treat / Underbase
of your Wagner HVLP /W550 Spray
gun to deliver roughly 5ml of pretre
in three seconds for an XL T. F
accomplished by setting the adjust
turns from maximum setting.
ded for coverage of a
.5cm X 43cm).
sarily better, too much
impact on the wash-
spray gun about 30
whilst spraying. The garment can either be laid flat or
hung vertically for the pre-treatment process. POOR
PRE TREAT = POOR PRINT QUALITY.
an make a mask or stencil to
that only the required print area of the
will save on pre-treatment.
l
diluting the pre-treatment with water is recommended.
will prevent any discolorization of the lighter coloured g
be the same (10-15ml for an area of 14in x 17in).
If you find that the resulting spray is a little uneven, you th
a towel / fabric to spread the pre-treatment evenly.
Place on the heat press and cover with a
teflon or silicone sheet if your press does
not have a non-stick surface. This is
important as the pre treat / underbase is
treat it causes a chemical
reaction resulting in a rapid fixing of the ink.
Excessive buildup of pre treat on the Teflon sheet used for ink curing will cause the ink
to stick to the Teflon sheet. It is recommended that you use a separate Teflon sheet for
curing prints. Clean the Teflon sheets regularly with soap and water.
It is a good idea to pre-treat all the garments for one job in a “batch”, and then move on
to printing. Once a shirt is pre-treated it does not need to be printed immediately. This
will make the production process smoother.
into the fluid container
Gun. Set your spray
atment (underbase)
or the Wagner 550 this is
ment screw three
Approximately 10ml -
15ml of pre treat is recommen
typical area of 14in x 17in (35
Remember, more is not neces
pre-treatment can negatively
fastness of the final print. Hold the
to 45cm (12 to 18 inches) away from the garment
If you are printing only a small image on the garment, you c
place over the garment before spraying, so
garment receives the pre-treatment. This
When printing on lighter colored garments (light blues,
ight greens, yellows, etc.)
A 50/50 solution with water
arments. The coverage should
can wipe the sprayed area wi
very sticky. If this is not available a sheet
of baking or parchment paper (NOT WAXED
PAPER) will suffice. Press the fabric at
approximately 170° Celsius (335°F) for 10
to 15 seconds with a pressure of around 10
psi. This causes the pre-treat to bond the
flattened fabric fibers down and produces
an optimised surface for ink jet printing.
When the white ink comes into contact
with the pre