
6
Troubleshooting Tips
Q. Why isn't my heat transfer vinyl sticking to the fabric?
A. This can be caused by three things. Insuficient pressure, or temperature, or time.
Time: Some heat transfer films need a few seconds to cool before you remove the liner. Try a warm
or cold peel first.
Temperature: If that doesn't work, check to make sure you are using the recommended time and
temperature settings. If you are, your press may not be putting out the correct amount of heat. Use a
Geo Knight IR thermometer to check the actual temperature of the platen. If it is more than 5°
different from the LCD display (PV), adjust it using step four in the control panel (see page 4).
Pressure: If the temperature is correct, adjust the pressure. Some films require more pressure to
bond the adhesive to the fabric. There should be some resistance when you close the press. If you
have verified all of these and the film doesn't stick, contact SIGNWarehouse customer service or
Technical Support for further assistance.
Q. Why does my sublimated transfer look washed out?
A. This is usually caused by insufficient temperature. Sublimation works best at or near 400°F. If
your transfer is faded, check the output of the heat platen with a contact thermometer and make sure
the output matches the displayed temperature. If not, adjust as directed above. Then repress at 390 -
400°F.
Q. Why are my transfers are sticking to the heating element of the upper platen?
A. If T-shirt vinyl is sticking to the heating element, you have it upside down. Remove any adhesive
residue, flip it over and try again. If an inkjet or laser transfer is sticking to the heating element, it's
because the heat is affectign the ink. Cover it with a Teflon sheet or sheet of silicone Kraft paper to
prevent this. Using a Teflon sheet or Kraft peaper is recommended for almost all heat transfer
applications.
Q. Why is it so hard to peel the liner when I'm done pressing the paper?
A. A hot or warm peel film may become hard to peel if allowed to cool. Always peel the film or
transfer paper in accordance with the product's recommendations.