Placing the plastic wrap over the wald area of your head:
You need to cover the entire bald area with the wrap and tie it below the chin. So the wrap-sheet should be cut to sufficient length for this. Spray some water over the scalp so that the plastic sheet sticks firmly without slipping while spreading. See picture.
Securing the plastic wrap over your head firmly:
Both of your hands should pull the wrap steadily and evenly towards the bottom of the head; at the same time ensure that there are no wrinkles or creases on the surface over the scalp; pull the wrap and make a tie-knot under your chin for securing the wrap tightly.
Securing the wrap over the head with tape:
See picture. Tape should start from the front-side of the forehead and end at the backside for securing. Next piece of tape should be stuck around the perimeter of your head – above the forehead. Then taping should be done side-to-side overlapping the forehead and the hairline by minimum one inch. Similarly one more stretch of tape should be secured from the forehead to the backside of the head; and this should be continued till you are confident that the plastic wrap is firmly secured.
Draw and mark the Hairline on the Template:
Remember you are drawing a Template for helping the craftsmen of the hair-piece to design it exactly for your head. So you need to visualize how your Template will be identified at the manufacturing end. While the plastic wrap is on your head, start drawing the lines with the Sharpie marker which will be read by our craftsmen.
The bald area should be covered from end to end by drawing the marker-line. Your Front hairline should be identified with the letter "F". The drawn line should be above your brow-line by three or four fingers' gap in between. Draw the entire perimeter first. Then if you require any specific style, that should be marked now on the Template.
Supposing you want a parting done in the final hair-piece, you should choose a pivot point and draw a line from that point at the backside of your head to the front-hairline. Your original growth of hair should correspond with the look of the parting and so the pivot should be marked accordingly for natural look.
You should make all the information clear to the craftsmen by identifying the date of the Template, probable growth pattern and such other details right on the Template itself with the marker.
Mark the hair direction along with part required:
Finished marking the Template? Now secure the marking with another layer of tape for covering and sealing purpose of the marking. See the sketch as how the hair direction and parting is indicated as a suggestion. Then for matching the exact color of your originally grown hair, attach minimum 2 locks of hair taken from your head over the Template. And don't forget to indicate as from which part of your head these locks were taken, so that the craftsmen will know from the mold and match your hair color accurately. (In case you are able to provide a color code, well – forget this identification).