The basic steps to full layer-on-layer heat application are as follows.
Step 1: Position the background layer of design and heat apply for the recommended time, temperature and pressure. Next, remove the mylar carrier.
Consider that any initial applications will receive heat a second or possibly even a third time. For this reason, it’s only necessary to “tack” this layer in place. The recommendation is to use the least amount of time possible to prevent any possible shrinking and alignment issues with the foreground layer.
Step 2: Align foreground layer, heat apply and remove mylar carrier.
If the application provides a variable time and temperature, it is suggested to err on the higher side of the range. This will ensure enough heat reaches the adhesive on the initial background application.
For example :
ONE COLOR Time: 8-12 seconds,
BUT IF YOU PRINT TWO COLORS,
background layer Time:: 6 SECONDS,
background layer Time: 15 SECONDS.