I am trying to fabricate a double-sided PCB circuit using the toner transfer method. I use a steam iron to transfer the toner from transfer paper to copper. Once one side is transferred I drill a few holes for alignment and pass some needles and then place the second side of the circuit print and transfer that.
The issue that I am facing is that once I start transferring the second side of the circuit onto copper, the toner that was already transferred to the first side starts leaving the board and starts getting transferred to the surface on which the first side is placed. I have tried different surfaces like cloth or wood. But in both cases the first side transferred toner starts leaving the copper.
Looking for suggestions to help avoid the issue may be some sort of paper or tape that might not attract the toner from copper which I could place beneath the first transferred side.
The issue that I am facing is that once I start transferring the second side of the circuit onto copper, the toner that was already transferred to the first side starts leaving the board and starts getting transferred to the surface on which the first side is placed. I have tried different surfaces like cloth or wood. But in both cases the first side transferred toner starts leaving the copper.
Looking for suggestions to help avoid the issue may be some sort of paper or tape that might not attract the toner from copper which I could place beneath the first transferred side.