Cut board to size. Clean copper board with steel wool, S.O.S. or Brillo pads. Rinse cleaned board with soap and water. Be sure to remove all soap residue. Dry thoroughly with lint-free cloth.
Some users prefer placing a piece of plain paper between the iron and the film to reduce friction.
Temperature setting on the iron is critical, and dependant upon your laser printer or photocopier. Iron temperatures vary. Iron until board has completely and fully reached the temperature of the iron. Time varies with the size and thickness of the board. Generally this is 1.5 to 4 minutes.