In general terms somewhere between 270 and 300 degrees is likely to be ideal.
Heat press vinyl for polyester.
Most of the heat transfer vinyl films that we offer can be applied to cotton polyester or cotton poly blends.
If it is 100 polyester you can take elasti prints down to 275f.
Make sure you re using light pressure do not put your whole body weight down on the press this can cause your fabric to burn.
The perfect values for time and temperature are 270 f for about 10 seconds.
Lay your heat press on the teflon sheet and press for 30 seconds.
Cut off a small swatch of polyester heat press your iron on to the polyester and run it through the washing machine a few times to see if it adheres.
Some polyester is super sensitive to heat.
Heat press temp for polyester when pressing fabrics made of polyester it s highly recommended that you stick to low temperatures.
Heat transfer vinyl for cotton polyester.
However keep in mind that a cover sheet can also reduce the temperature reaching the transfer application by another 10 degrees.
If you want to heat press polyester then it is best to stick to a slightly lower temperature than you would use on more heat resistant fabrics such as cotton.
For proper application you will also want to use medium firm pressure 6 8.
You can even test before you decide which vinyl to use just apply a heat press or iron at different temperatures to your polyester and see if it discolors or not.
In addition you won t want to keep the heat applies for too long.