All you need is
1. Photocopy or Laser Print circuit image onto the dull side (emulsion) of Press-n-Peel Image Transfer Film.
Prepare: Clothes Iron, Steel Wool #00 (or
SOS , Brillo), Packaging Tape,
Photocopy or Laser Printed Circuit Image, & Directions
2. Cut Press-n-Peel, leaving a 1/4" border around the circuit image. Cut board to size.
3. 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. Be sure to scrape any burrs that appear on the edge of the board that may have resulted from the cutting/shearing process. Burrs tend to keep the iron from making solid contact with the Press-n-Peel Film.
4. Place Press-n-Peel with image face down
onto clean copper board. Iron the Press-n-Peel Film to the board. 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. Suggested starting temperature is 225
- 250 degrees F. Iron settings generally are between the "acrylic" and "polyester"
settings. 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.
5. Quench the board/film combination under cold running water. Peel the
film off.
6. To remove small "fills" in between traces and "filled donuts", cover the imaged copper board with clear packing tape, and then remove. This will pull all unwanted filled areas off the board.
7. After removing "fills", trim the board
(if necessary) to the final size.
Wash the board in soap & water before etching toremove surface oxidation
. Etch with any standard copper board etching solution -- Ammonium Persulfate,
Ferric Chloride,etc.
8. Using steel wool, scrub the Press-n-Peel
image off as to reveal copper traces. This is best done under running water.
Suggestion: Do not do this until your ready to drill and populate the board.
The Press-n-Peel transfer resist protects the board from oxidation.